Materiały źródłowe

• #1 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #2 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #3 Common triggers of vasovagal syncope and how to reduce your risk of fainting – Harvard Health

  https://www.health.harvard.edu/diseases-and-conditions/common-triggers-of-vasovagal-syncope-and-how-to-reduce-your-risk-of-fainting

  If you’ve ever fainted at the sight of blood or from standing up too fast, you’ve experienced what’s known as vasovagal syncope, the most common cause of fainting. Up to a third of people have experienced an episode of vasovagal syncope at some point in their lives. […] Occasional episodes of vasovagal syncope are rarely a cause for concern. But if they happen often, it’s a good idea to see a doctor to rule out more serious underlying causes. […] Vasovagal syncope occurs when the vagus nerve, which carries signals from the brain to the rest of the body and controls functions including heart rate and blood pressure, becomes overstimulated in response to triggers such as stress, dehydration, or donating blood. The heart rate slows and blood vessels widen, causing a drop in blood pressure and reduced blood flow to the brain. This can lead to a loss of consciousness.

• #4 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #5 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #6 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #7 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #8 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #9 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #10 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #11 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #12 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #13 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #14 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #15 Reflex syncope – Wikipedia

  https://en.wikipedia.org/wiki/Reflex_syncope

  Episodes of vasovagal syncope are typically recurrent and usually occur when the predisposed person is exposed to a specific trigger. Before losing consciousness, the individual frequently experiences early signs or symptoms such as lightheadedness, nausea, the feeling of being extremely hot or cold (accompanied by sweating), ringing in the ears, an uncomfortable feeling in the heart, fuzzy thoughts, confusion, a slight inability to speak or form words (sometimes combined with mild stuttering), weakness and visual disturbances such as lights seeming too bright, fuzzy or tunnel vision, black cloud-like spots in vision, and a feeling of nervousness can occur as well. The symptoms may become more intense over several seconds to several minutes before the loss of consciousness (if it is lost). Onset usually occurs when a person is sitting up or standing.

• #16 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #17 Patient education: Syncope (fainting) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/syncope-fainting-beyond-the-basics/print

  In most cases of vasovagal syncope, you have some warning that you are near fainting. These signs include dizziness, feeling hot or cold, nausea, pale skin, „tunnel-like” vision, disturbance of hearing, and profuse sweating. After the episode, symptoms may continue because of continued low blood pressure. Some people feel extremely tired afterward. In some cases, particularly in older people, the person may not remember having experienced any warning symptoms after they recover.

• #18 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #19 Reflex syncope – Wikipedia

  https://en.wikipedia.org/wiki/Reflex_syncope

  Episodes of vasovagal syncope are typically recurrent and usually occur when the predisposed person is exposed to a specific trigger. Before losing consciousness, the individual frequently experiences early signs or symptoms such as lightheadedness, nausea, the feeling of being extremely hot or cold (accompanied by sweating), ringing in the ears, an uncomfortable feeling in the heart, fuzzy thoughts, confusion, a slight inability to speak or form words (sometimes combined with mild stuttering), weakness and visual disturbances such as lights seeming too bright, fuzzy or tunnel vision, black cloud-like spots in vision, and a feeling of nervousness can occur as well. The symptoms may become more intense over several seconds to several minutes before the loss of consciousness (if it is lost). Onset usually occurs when a person is sitting up or standing.

• #20 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #21 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #22 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #23 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #24 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #25 Reflex syncope – Wikipedia

  https://en.wikipedia.org/wiki/Reflex_syncope

  Episodes of vasovagal syncope are typically recurrent and usually occur when the predisposed person is exposed to a specific trigger. Before losing consciousness, the individual frequently experiences early signs or symptoms such as lightheadedness, nausea, the feeling of being extremely hot or cold (accompanied by sweating), ringing in the ears, an uncomfortable feeling in the heart, fuzzy thoughts, confusion, a slight inability to speak or form words (sometimes combined with mild stuttering), weakness and visual disturbances such as lights seeming too bright, fuzzy or tunnel vision, black cloud-like spots in vision, and a feeling of nervousness can occur as well. The symptoms may become more intense over several seconds to several minutes before the loss of consciousness (if it is lost). Onset usually occurs when a person is sitting up or standing.

• #26 Understanding Vasovagal Syncope | Saint Luke’s Health System

  https://www.saintlukeskc.org/health-library/understanding-vasovagal-syncope

  Fainting is the main symptom of vasovagal syncope. You may have symptoms before fainting, such as: […] If you lie down and elevate your legs at the first sign of these symptoms, you will often be able to prevent fainting. Not everyone notices symptoms before fainting, however. […] When a person does faint, lying down restores blood flow to the brain. Consciousness should return fairly quickly. You might not feel normal for a little while after you faint. You might feel depressed or fatigued for a short time. You may even feel nauseous afterward and vomit. […] Some people have only one or two episodes of vasovagal syncope in their life. For others, it happens more often and with no warning.

• #27 Understanding Vasovagal Syncope

  https://myhealth.umassmemorial.org/Library/Healthsheets/3,S,90476

  Fainting is the main symptom of vasovagal syncope. You may have symptoms before fainting, such as: […] If you lie down and elevate your legs at the first sign of these symptoms, you will often be able to prevent fainting. But not everyone notices symptoms before fainting. […] When a person does faint, lying down restores blood flow to the brain. Consciousness should return fairly quickly. You might not feel normal for a little while after you faint. You might feel depressed or fatigued for a short time. You may even feel nauseous afterward and vomit. […] Some people have only one or two episodes of vasovagal syncope in their life. For others, it happens more often and with no warning.

• #28 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #29 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #30 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #31 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #32 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #33 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #34 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #35

  https://www.amerikanhastanesi.org/mayo-clinic-care-network/mayo-clinic-health-information-library/diseases-conditions/vasovagal-syncope

  Vasovagal syncope occurs when you faint because your body overreacts to certain triggers, such as the sight of blood or extreme emotional distress. It may also be called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following: Pale skin, Lightheadedness, Tunnel vision your field of vision narrows so that you see only what’s in front of you, Nausea, Feeling warm, A cold, clammy sweat, Blurred vision. […] During a vasovagal syncope episode, bystanders may notice: Jerky, abnormal movements, A slow, weak pulse, Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #36 Vasovagal Syncope Videos | Syncopedia

  https://syncopedia.org/vasovagal-syncope-videos/

  Presyncopal signs of an impending vasovagal syncope include: pallor, sweating, pupillary dilation and changes in breathing. […] Eye opening with deviation of the eyes is typical at the onset of loss of consciousness. Prior to loss of consciousness many fainting subjects may close their eyes in response to the discomforting presyncopal signs.

• #37 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #38 Textbook | Vasovagal Syncope | Syncopedia

  https://syncopedia.org/vasovagal-syncope/

  Symptoms and signs of vasovagal syncope are caused by both the reflex autonomic activation and the systemic hypotension. […] Prodromal signs and symptoms include feeling of warmth, vague nausea, abdominal cramps, desire to sit down, and desire to leave the room. […] If no preventative measures are taken, symptoms may include light-headedness, swimming sensation, dizziness, cold sweat, fatigue, blurred and fading vision, palpitations (in young patients), sounds coming from a distance, and buzzing in the ears. […] Just prior to the faint, signs may include facial pallor (or green), yawning, sighing, tachypnoea, sweating, restlessness, salivation, pupillary dilatation, accentuated peristaltic sounds, difficulty concentrating, loss of vision, staring, and hearing loss. […] During syncope, individuals may be unresponsive, fall (if standing), have eyes open and turned upwards, experience short duration (although longer periods have been reported), have myoclonic jerks, urinary incontinence (in 25 %; faecal incontinence is very rare), and abnormal breathing. […] After syncope, consciousness recovers quickly, but fatigue, persistent pallor, nausea, yawning, weakness, sweating, oliguria, and recurrence when standing up may occur.

• #39 Vasovagal Syncope: Symptoms, Causes, and Treatments

  https://www.verywellhealth.com/vasovagal-cardioneurogenic-syncope-1746389

  Fainting from a vasovagal response can be sudden and unexpected. However, you may have warning signs a few seconds or minutes before a fainting episode. […] The signs leading up to fainting are called the prodrome of syncope, or pre-syncope. The symptoms that come on after you regain consciousness are called postdromal symptoms. […] Prodromal symptoms of syncope can include: Lightheadedness, Trouble hearing, Visual disturbances, such as gray out or tunnel vision, Sudden sweating, Nausea, Palpitations, Pallor (pale appearance). […] The time between when prodromal symptoms come on and when you actually pass out can last for a few seconds. […] Episodes of vasovagal syncope have several key symptoms and features that make them different from other causes of fainting: The episodes almost always occur while you’re standing or sitting up. This is because more blood goes to your legs when you are standing and your blood pressure drops. Fainting almost never happens when someone is lying down.

• #40 Syncope: Symptoms, Causes & Treatments

  https://my.clevelandclinic.org/health/diseases/17536-syncope

  Vasovagal syncope happens when you have a sudden drop in blood pressure, which causes a drop in blood flow to your brain. It often occurs after standing for a while or under emotional distress. Normally, when you stand up, gravity makes blood settle in the lower part of your body, below your diaphragm. When that happens, your heart and autonomic nervous system work to keep your blood pressure stable. […] In vasovagal syncope, your heart rate and blood pressure inappropriately decrease severely. This causes decreased blood flow to your brain and leads to passing out. Typically, vasovagal syncope is benign. […] The most common syncope symptoms include: Blacking out. Feeling lightheaded. Falling for no reason. Feeling dizzy. Feeling drowsy or groggy. Fainting, especially after eating or exercising. Feeling unsteady or weak when standing. Changes in vision, such as seeing spots or having tunnel vision. Headaches.

• #41 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #42 Vasovagal Syncope: Symptoms, Causes, and Treatments

  https://www.verywellhealth.com/vasovagal-cardioneurogenic-syncope-1746389

  You will usually regain consciousness shortly after falling or being helped to the ground. This is because your normal blood pressure is restored in the lying-down position. […] After an episode of vasovagal syncope, many people will feel nauseous, dizzy, and very tired. These symptoms can last anywhere from minutes to hours. […] Recovery usually starts within seconds or minutes, but you may need 10 minutes or more before standing back up so you don’t faint again.

• #43 Vasovagal Syncope: Symptoms, Causes, and Treatments

  https://www.verywellhealth.com/vasovagal-cardioneurogenic-syncope-1746389

  You will usually regain consciousness shortly after falling or being helped to the ground. This is because your normal blood pressure is restored in the lying-down position. […] After an episode of vasovagal syncope, many people will feel nauseous, dizzy, and very tired. These symptoms can last anywhere from minutes to hours. […] Recovery usually starts within seconds or minutes, but you may need 10 minutes or more before standing back up so you don’t faint again.

• #44 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #45 Vasovagal Syncope: Symptoms, Causes, and Treatments

  https://www.verywellhealth.com/vasovagal-cardioneurogenic-syncope-1746389

  You will usually regain consciousness shortly after falling or being helped to the ground. This is because your normal blood pressure is restored in the lying-down position. […] After an episode of vasovagal syncope, many people will feel nauseous, dizzy, and very tired. These symptoms can last anywhere from minutes to hours. […] Recovery usually starts within seconds or minutes, but you may need 10 minutes or more before standing back up so you don’t faint again.

• #46 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #47 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #48 Understanding Vasovagal Syncope

  https://myhealth.umassmemorial.org/Library/Healthsheets/3,S,90476

  Fainting is the main symptom of vasovagal syncope. You may have symptoms before fainting, such as: […] If you lie down and elevate your legs at the first sign of these symptoms, you will often be able to prevent fainting. But not everyone notices symptoms before fainting. […] When a person does faint, lying down restores blood flow to the brain. Consciousness should return fairly quickly. You might not feel normal for a little while after you faint. You might feel depressed or fatigued for a short time. You may even feel nauseous afterward and vomit. […] Some people have only one or two episodes of vasovagal syncope in their life. For others, it happens more often and with no warning.

• #49 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #50 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #51 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #52 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #53 Vasovagal syncope, pre-syncope and POTS – Congenital & Children’s Heart Centre

  https://www.childrensheartcentre.com/selectedheartconditions/vaso-vagalsyncope.html

  Vaso-vagal episodes usually occur when standing still or rising suddenly. Events may be associated with times of emotional stress, pain or acutely stressful situations. […] Onset may be sudden or associated with warning signs such as visual disturbance, nausea, sweating, tiredness, light-headedness, pallor or headache. Just before fainting the person may experience a racing heart, feeling of warmth or cold, yawning, vomiting, difficulty talking or disorientation. […] The fainting is usually a gentle collapse to the ground with a brief period of unconsciousness and prompt recovery. In some cases it may be more complex without warning, jerking of the limbs, incontinence and slow recovery. At the end of the faint hearing may return before the ability to move. […] After a faint the person may experience nausea, clamminess, light-headedness, headache, malaise, vomiting, abdominal discomfort, weakness, tremors, cold or warm feelings and disorientation. If there are frequent events then in between he/ she may experience chronic fatigue, headache, exercise intolerance and intolerance of prolonged standing.

• #54 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #55 Vasovagal syncope, pre-syncope and POTS – Congenital & Children’s Heart Centre

  https://www.childrensheartcentre.com/selectedheartconditions/vaso-vagalsyncope.html

  Vaso-vagal episodes usually occur when standing still or rising suddenly. Events may be associated with times of emotional stress, pain or acutely stressful situations. […] Onset may be sudden or associated with warning signs such as visual disturbance, nausea, sweating, tiredness, light-headedness, pallor or headache. Just before fainting the person may experience a racing heart, feeling of warmth or cold, yawning, vomiting, difficulty talking or disorientation. […] The fainting is usually a gentle collapse to the ground with a brief period of unconsciousness and prompt recovery. In some cases it may be more complex without warning, jerking of the limbs, incontinence and slow recovery. At the end of the faint hearing may return before the ability to move. […] After a faint the person may experience nausea, clamminess, light-headedness, headache, malaise, vomiting, abdominal discomfort, weakness, tremors, cold or warm feelings and disorientation. If there are frequent events then in between he/ she may experience chronic fatigue, headache, exercise intolerance and intolerance of prolonged standing.

• #56 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #57 Vasovagal Syncope: Symptoms, Causes, and Treatments

  https://www.verywellhealth.com/vasovagal-cardioneurogenic-syncope-1746389

  You will usually regain consciousness shortly after falling or being helped to the ground. This is because your normal blood pressure is restored in the lying-down position. […] After an episode of vasovagal syncope, many people will feel nauseous, dizzy, and very tired. These symptoms can last anywhere from minutes to hours. […] Recovery usually starts within seconds or minutes, but you may need 10 minutes or more before standing back up so you don’t faint again.

• #58 Vasovagal Syncope: Symptoms, Causes, and Treatments

  https://www.verywellhealth.com/vasovagal-cardioneurogenic-syncope-1746389

  Fainting from a vasovagal response can be sudden and unexpected. However, you may have warning signs a few seconds or minutes before a fainting episode. […] The signs leading up to fainting are called the prodrome of syncope, or pre-syncope. The symptoms that come on after you regain consciousness are called postdromal symptoms. […] Prodromal symptoms of syncope can include: Lightheadedness, Trouble hearing, Visual disturbances, such as gray out or tunnel vision, Sudden sweating, Nausea, Palpitations, Pallor (pale appearance). […] The time between when prodromal symptoms come on and when you actually pass out can last for a few seconds. […] Episodes of vasovagal syncope have several key symptoms and features that make them different from other causes of fainting: The episodes almost always occur while you’re standing or sitting up. This is because more blood goes to your legs when you are standing and your blood pressure drops. Fainting almost never happens when someone is lying down.

• #59 Evaluation of Syncope | AAFP

  https://www.aafp.org/pubs/afp/issues/2005/1015/p1492.html

  Though relatively common, syncope is a complex presenting symptom defined by a transient loss of consciousness, usually accompanied by falling, and with spontaneous recovery. […] The defining characteristics of syncope include rapid onset with transient loss of consciousness usually accompanied by falling, followed by spontaneous, complete, and usually prompt recovery without intervention. […] Vasovagal syncope has three distinct phases: a prodrome, loss of consciousness, and a postsyncopal phase. A precipitating event or situation (e.g., emotional stress, trauma, pain, sight of blood, prolonged standing) usually is identifiable. The prodrome, characterized by diaphoresis, epigastric discomfort, extreme fatigue, weakness, yawning, nausea, dizziness, and vertigo, results from increased parasympathetic tone and may last seconds to several minutes. Lying down or removing the stimulus may abort the syncopal episode. The postsyncopal phase may last hours or, rarely, days and may include protracted confusion, disorientation, nausea, dizziness, and a general sense of poor health. A prolonged postsyncopal phase may be associated with causes more serious than vasovagal stimulation and should prompt a more extensive evaluation.

• #60 Vasovagal Syncope: Symptoms, Causes, and Treatments

  https://www.verywellhealth.com/vasovagal-cardioneurogenic-syncope-1746389

  Fainting from a vasovagal response can be sudden and unexpected. However, you may have warning signs a few seconds or minutes before a fainting episode. […] The signs leading up to fainting are called the prodrome of syncope, or pre-syncope. The symptoms that come on after you regain consciousness are called postdromal symptoms. […] Prodromal symptoms of syncope can include: Lightheadedness, Trouble hearing, Visual disturbances, such as gray out or tunnel vision, Sudden sweating, Nausea, Palpitations, Pallor (pale appearance). […] The time between when prodromal symptoms come on and when you actually pass out can last for a few seconds. […] Episodes of vasovagal syncope have several key symptoms and features that make them different from other causes of fainting: The episodes almost always occur while you’re standing or sitting up. This is because more blood goes to your legs when you are standing and your blood pressure drops. Fainting almost never happens when someone is lying down.

• #61 Evaluation of Syncope | AAFP

  https://www.aafp.org/pubs/afp/issues/2005/1015/p1492.html

  Though relatively common, syncope is a complex presenting symptom defined by a transient loss of consciousness, usually accompanied by falling, and with spontaneous recovery. […] The defining characteristics of syncope include rapid onset with transient loss of consciousness usually accompanied by falling, followed by spontaneous, complete, and usually prompt recovery without intervention. […] Vasovagal syncope has three distinct phases: a prodrome, loss of consciousness, and a postsyncopal phase. A precipitating event or situation (e.g., emotional stress, trauma, pain, sight of blood, prolonged standing) usually is identifiable. The prodrome, characterized by diaphoresis, epigastric discomfort, extreme fatigue, weakness, yawning, nausea, dizziness, and vertigo, results from increased parasympathetic tone and may last seconds to several minutes. Lying down or removing the stimulus may abort the syncopal episode. The postsyncopal phase may last hours or, rarely, days and may include protracted confusion, disorientation, nausea, dizziness, and a general sense of poor health. A prolonged postsyncopal phase may be associated with causes more serious than vasovagal stimulation and should prompt a more extensive evaluation.

• #62 Vasovagal Syncope: Symptoms, Causes, and Treatments

  https://www.verywellhealth.com/vasovagal-cardioneurogenic-syncope-1746389

  Fainting from a vasovagal response can be sudden and unexpected. However, you may have warning signs a few seconds or minutes before a fainting episode. […] The signs leading up to fainting are called the prodrome of syncope, or pre-syncope. The symptoms that come on after you regain consciousness are called postdromal symptoms. […] Prodromal symptoms of syncope can include: Lightheadedness, Trouble hearing, Visual disturbances, such as gray out or tunnel vision, Sudden sweating, Nausea, Palpitations, Pallor (pale appearance). […] The time between when prodromal symptoms come on and when you actually pass out can last for a few seconds. […] Episodes of vasovagal syncope have several key symptoms and features that make them different from other causes of fainting: The episodes almost always occur while you’re standing or sitting up. This is because more blood goes to your legs when you are standing and your blood pressure drops. Fainting almost never happens when someone is lying down.

• #63 Syncope Clinical Presentation: History, Physical Examination

  https://emedicine.medscape.com/article/811669-clinical

  History and physical examination are the most specific and sensitive ways to evaluate syncope. […] In older adults, syncope frequently manifests as falls owing to amnesia or loss of consciousness, or presyncope that results in a fall particularly when they’re prone to falls and have several other fall risk factors. […] Prior faintness, dizziness, or light-headedness occurs in 70% of patients experiencing true syncope. Other symptoms, such as vertigo, weakness, diaphoresis, epigastric discomfort, nausea, blurred or faded vision, pallor, or paresthesias, may also occur in the presyncopal period. […] The duration of symptoms preceding a syncopal episode has been reported to be an average of 2.5 minutes in vasovagal syncope and an average of only 3 seconds in arrhythmia-related cardiac syncope.

• #64 Evaluation of Syncope | AAFP

  https://www.aafp.org/pubs/afp/issues/2005/1015/p1492.html

  Though relatively common, syncope is a complex presenting symptom defined by a transient loss of consciousness, usually accompanied by falling, and with spontaneous recovery. […] The defining characteristics of syncope include rapid onset with transient loss of consciousness usually accompanied by falling, followed by spontaneous, complete, and usually prompt recovery without intervention. […] Vasovagal syncope has three distinct phases: a prodrome, loss of consciousness, and a postsyncopal phase. A precipitating event or situation (e.g., emotional stress, trauma, pain, sight of blood, prolonged standing) usually is identifiable. The prodrome, characterized by diaphoresis, epigastric discomfort, extreme fatigue, weakness, yawning, nausea, dizziness, and vertigo, results from increased parasympathetic tone and may last seconds to several minutes. Lying down or removing the stimulus may abort the syncopal episode. The postsyncopal phase may last hours or, rarely, days and may include protracted confusion, disorientation, nausea, dizziness, and a general sense of poor health. A prolonged postsyncopal phase may be associated with causes more serious than vasovagal stimulation and should prompt a more extensive evaluation.

• #65 Evaluation of Syncope | AAFP

  https://www.aafp.org/pubs/afp/issues/2005/1015/p1492.html

  Though relatively common, syncope is a complex presenting symptom defined by a transient loss of consciousness, usually accompanied by falling, and with spontaneous recovery. […] The defining characteristics of syncope include rapid onset with transient loss of consciousness usually accompanied by falling, followed by spontaneous, complete, and usually prompt recovery without intervention. […] Vasovagal syncope has three distinct phases: a prodrome, loss of consciousness, and a postsyncopal phase. A precipitating event or situation (e.g., emotional stress, trauma, pain, sight of blood, prolonged standing) usually is identifiable. The prodrome, characterized by diaphoresis, epigastric discomfort, extreme fatigue, weakness, yawning, nausea, dizziness, and vertigo, results from increased parasympathetic tone and may last seconds to several minutes. Lying down or removing the stimulus may abort the syncopal episode. The postsyncopal phase may last hours or, rarely, days and may include protracted confusion, disorientation, nausea, dizziness, and a general sense of poor health. A prolonged postsyncopal phase may be associated with causes more serious than vasovagal stimulation and should prompt a more extensive evaluation.

• #66 Patient education: Syncope (fainting) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/syncope-fainting-beyond-the-basics/print

  Vasovagal syncope – The most common type of syncope in all age groups, but especially in young people, is called vasovagal syncope. Vasovagal syncope is by far the most common type of a group of conditions called reflex syncope. A variety of conditions can trigger vasovagal syncope, including physical or psychological stress, dehydration, bleeding, or pain. The heart rate may slow dramatically at the time of the faint, and the blood vessels (mainly the veins) in the body expand, causing blood to pool in the lower extremities and the bowels, resulting in less blood return to the heart and a low blood pressure (hypotension). This causes a decrease in blood flow to the brain which causes near or complete loss of consciousness. Fortunately, blood flow is usually sufficiently restored when the person falls down or is placed in a horizontal position.

• #67 Syncope: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/811669-overview

  Syncope is defined as a transient, self-limited loss of consciousness with an inability to maintain postural tone that is followed by spontaneous recovery. This definition excludes seizures, coma, shock, or other states of altered consciousness. Although most causes of syncope are benign, this symptom presages a life-threatening event in a small subset of patients. […] Presyncopal symptoms reported may include the following: Prior faintness, dizziness, or light-headedness (70% of cases of true syncope) […] Vasovagal syncope is the most common type in young adults but can occur at any age. It usually occurs in a standing position and is precipitated by fear, emotional stress, or pain (eg, after a needlestick). Autonomic symptoms are predominant. Classically, nausea, diaphoresis, fading or „graying out” of vision, epigastric discomfort, and light-headedness precede syncope by a few minutes. The syncope is thought to occur secondary to efferent vasodepressor reflexes by a number of mechanisms, resulting in decreased peripheral vascular resistance. It is not life-threatening and occurs sporadically. […] Vasovagal syncope has a uniformly excellent prognosis. This condition does not increase the mortality, and recurrences are infrequent.

• #68 Vasovagal Syncope: Symptoms, Causes, and Treatments

  https://www.verywellhealth.com/vasovagal-cardioneurogenic-syncope-1746389

  You will usually regain consciousness shortly after falling or being helped to the ground. This is because your normal blood pressure is restored in the lying-down position. […] After an episode of vasovagal syncope, many people will feel nauseous, dizzy, and very tired. These symptoms can last anywhere from minutes to hours. […] Recovery usually starts within seconds or minutes, but you may need 10 minutes or more before standing back up so you don’t faint again.

• #69 Management and therapy of vasovagal syncope: A review

  https://pmc.ncbi.nlm.nih.gov/articles/PMC2998831/

  Vasovagal syncope is a common cause of recurrent syncope. Clinically, these episodes may present as an isolated event with an identifiable trigger, or manifest as a cluster of recurrent episodes warranting intensive evaluation. […] Vasovagal syncope, also known as the common faint, is mediated by emotion or by orthostatic stress. It is usually preceded by prodromal symptoms of autonomic activation (sweating, pallor, nausea). […] Although most patients display typical conditions and signs of a vasovagal syncope such as symptom onset during standing, light-headedness and full recovery after a few minutes, up to 30% have an atypical presentation. In some cases syncope occurs without any prodromal symptoms. The loss of consciousness is usually brief and fatigue is rarely seen. In the case of longer lasting cerebral hypoperfusion seizure-like movements are observed, imitating an epileptic seizure. […] Symptoms before fainting are caused by reduced cerebral perfusion. The patients complain of fatigue, weakness, dizziness, wetness of the skin, a dimming of vision, and sometimes tinnitus and complete loss of vision. Some patients suffer trauma, though severe traumatic injuries are rare.

• #70 Reflex syncope – Wikipedia

  https://en.wikipedia.org/wiki/Reflex_syncope

  When people lose consciousness, they fall down (unless prevented from doing so) and, when in this position, effective blood flow to the brain is immediately restored, allowing the person to regain consciousness. If the person does not fall into a fully flat, supine position, and the head remains elevated above the trunk, a state similar to a seizure may result from the blood’s inability to return quickly to the brain, and the neurons in the body will fire off and generally cause muscles to twitch very slightly but mostly remain very tense. […] The autonomic nervous system’s physiological state leading to loss of consciousness may persist for several minutes, so if patients try to sit or stand when they wake up, they may pass out again. The person may be nauseated, pale, and sweaty for several minutes or hours.

• #71 Evaluation of Syncope | AAFP

  https://www.aafp.org/pubs/afp/issues/2005/1015/p1492.html

  Though relatively common, syncope is a complex presenting symptom defined by a transient loss of consciousness, usually accompanied by falling, and with spontaneous recovery. […] The defining characteristics of syncope include rapid onset with transient loss of consciousness usually accompanied by falling, followed by spontaneous, complete, and usually prompt recovery without intervention. […] Vasovagal syncope has three distinct phases: a prodrome, loss of consciousness, and a postsyncopal phase. A precipitating event or situation (e.g., emotional stress, trauma, pain, sight of blood, prolonged standing) usually is identifiable. The prodrome, characterized by diaphoresis, epigastric discomfort, extreme fatigue, weakness, yawning, nausea, dizziness, and vertigo, results from increased parasympathetic tone and may last seconds to several minutes. Lying down or removing the stimulus may abort the syncopal episode. The postsyncopal phase may last hours or, rarely, days and may include protracted confusion, disorientation, nausea, dizziness, and a general sense of poor health. A prolonged postsyncopal phase may be associated with causes more serious than vasovagal stimulation and should prompt a more extensive evaluation.

• #72 Vasovagal Syncope | Cedars-Sinai

  https://www.cedars-sinai.org/health-library/diseases-and-conditions/v/vasovagal-syncope.html

  Fainting is the defining symptom of vasovagal syncope. Often you may have certain symptoms before actually fainting, such as: Nausea, Warmth, Turning pale, Getting sweaty palms, Feeling dizzy or lightheaded, Blurred vision. […] When a person does faint, lying down restores blood flow to the brain. Consciousness should return fairly quickly. You might not feel normal for a little while after you faint. You might feel depressed or fatigued for a short time. Some people even feel nauseous and may vomit. […] Some people have only one or two episodes of vasovagal syncope in their life. For others, the problem is more chronic and happens with no warning.

• #73 Evaluation of Syncope | AAFP

  https://www.aafp.org/pubs/afp/issues/2005/1015/p1492.html

  Though relatively common, syncope is a complex presenting symptom defined by a transient loss of consciousness, usually accompanied by falling, and with spontaneous recovery. […] The defining characteristics of syncope include rapid onset with transient loss of consciousness usually accompanied by falling, followed by spontaneous, complete, and usually prompt recovery without intervention. […] Vasovagal syncope has three distinct phases: a prodrome, loss of consciousness, and a postsyncopal phase. A precipitating event or situation (e.g., emotional stress, trauma, pain, sight of blood, prolonged standing) usually is identifiable. The prodrome, characterized by diaphoresis, epigastric discomfort, extreme fatigue, weakness, yawning, nausea, dizziness, and vertigo, results from increased parasympathetic tone and may last seconds to several minutes. Lying down or removing the stimulus may abort the syncopal episode. The postsyncopal phase may last hours or, rarely, days and may include protracted confusion, disorientation, nausea, dizziness, and a general sense of poor health. A prolonged postsyncopal phase may be associated with causes more serious than vasovagal stimulation and should prompt a more extensive evaluation.

• #74 Evaluation of Syncope | AAFP

  https://www.aafp.org/pubs/afp/issues/2005/1015/p1492.html

  Though relatively common, syncope is a complex presenting symptom defined by a transient loss of consciousness, usually accompanied by falling, and with spontaneous recovery. […] The defining characteristics of syncope include rapid onset with transient loss of consciousness usually accompanied by falling, followed by spontaneous, complete, and usually prompt recovery without intervention. […] Vasovagal syncope has three distinct phases: a prodrome, loss of consciousness, and a postsyncopal phase. A precipitating event or situation (e.g., emotional stress, trauma, pain, sight of blood, prolonged standing) usually is identifiable. The prodrome, characterized by diaphoresis, epigastric discomfort, extreme fatigue, weakness, yawning, nausea, dizziness, and vertigo, results from increased parasympathetic tone and may last seconds to several minutes. Lying down or removing the stimulus may abort the syncopal episode. The postsyncopal phase may last hours or, rarely, days and may include protracted confusion, disorientation, nausea, dizziness, and a general sense of poor health. A prolonged postsyncopal phase may be associated with causes more serious than vasovagal stimulation and should prompt a more extensive evaluation.

• #75 Vasovagal Syncope: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/23325-vasovagal-syncope

  Vasovagal syncope happens when your nervous system overreacts and your blood pressure and heart rate drop suddenly, causing you to faint or pass out. Youre usually unconscious for less than one minute. […] Youre most likely to have symptoms 30 to 60 seconds right before a vasovagal syncopal episode. Common symptoms include: A sudden feeling of tiredness (fatigue), A sudden warm feeling, Lightheadedness or dizziness, Loss of color in your skin (pallor), Nausea, Profuse sweating, Slow pulse, Yawning, Tunnel vision. […] During a vasovagal syncope episode, you may experience: Brief disorientation or confusion, Eyes staying open but rolling up and back into your head, Falling when you lose consciousness, Loss of bladder control, Twitching movements, which people may mistake for a seizure. […] Once you come to (regain consciousness), youll usually recover in about 20 to 30 seconds. Then, you may experience: Anxiety or nervousness, Dizziness, Fatigue, Headache, Nausea, Pale skin (pallor), Sweating, Urge to poop. […] A vasovagal syncopal episode can happen again, especially if you stand within 30 minutes of the first fainting episode.

• #76 Vasovagal Syncope: Causes, Symptoms, Treatment & Prevention

  https://www.apollohospitals.com/diseases-and-conditions/vasovagal-syncope-causes-symptoms-diagnosis-prevention-treatment

  After an episode of vasovagal syncope, some people feel uncomfortable for a few hours or few days and even longer durations. During the post fainting period, you may experience nausea, dizziness, fatigue, and appetite loss. […] If you suffer from vasovagal syncope, then to prevent fainting, you need to stay away from hot places and avoid standing for long durations. If you feel nauseous, sweaty, or lightheaded, you need to lie down and raise your legs. If you face frequent vasovagal syncope, you also need to make lifestyle changes like eating more salt and taking more fluids.

• #77 Vasovagal Syncope: Causes, Symptoms, Treatment & Prevention

  https://www.apollohospitals.com/diseases-and-conditions/vasovagal-syncope-causes-symptoms-diagnosis-prevention-treatment

  After an episode of vasovagal syncope, some people feel uncomfortable for a few hours or few days and even longer durations. During the post fainting period, you may experience nausea, dizziness, fatigue, and appetite loss. […] If you suffer from vasovagal syncope, then to prevent fainting, you need to stay away from hot places and avoid standing for long durations. If you feel nauseous, sweaty, or lightheaded, you need to lie down and raise your legs. If you face frequent vasovagal syncope, you also need to make lifestyle changes like eating more salt and taking more fluids.

• #78 Syncope (medicine) – Wikipedia

  https://en.wikipedia.org/wiki/Syncope_(medicine)

  „Vasovagal (situational) syncope is one of the most common types which may occur in response to any of a variety of triggers, such as scary, embarrassing or uneasy situations, during blood drawing, or moments of sudden unusually high stress. […] Associated symptoms may be felt in the minutes leading up to a vasovagal episode and are referred to as the prodrome. These consist of light-headedness, confusion, pallor, nausea, salivation, sweating, tachycardia, blurred vision, and sudden urge to defecate among other symptoms. […] Vasovagal syncope can be considered in two forms: Isolated episodes of loss of consciousness, unheralded by any warning symptoms for more than a few moments. These tend to occur in the adolescent age group and may be associated with fasting, exercise, abdominal straining, or circumstances promoting vaso-dilation (e.g., heat, alcohol). The subject is invariably upright. The tilt-table test, if performed, is generally negative.

• #79 Syncope (medicine) – Wikipedia

  https://en.wikipedia.org/wiki/Syncope_(medicine)

  Recurrent syncope with complex associated symptoms. This is neurally mediated syncope (NMS). It is associated with any of the following: preceding or succeeding sleepiness, preceding visual disturbance („spots before the eyes”), sweating, lightheadedness. The subject is usually but not always upright. The tilt-table test, if performed, is generally positive. It is relatively uncommon.”

• #80 Vasovagal Syncope | Cedars-Sinai

  https://www.cedars-sinai.org/health-library/diseases-and-conditions/v/vasovagal-syncope.html

  Fainting is the defining symptom of vasovagal syncope. Often you may have certain symptoms before actually fainting, such as: Nausea, Warmth, Turning pale, Getting sweaty palms, Feeling dizzy or lightheaded, Blurred vision. […] When a person does faint, lying down restores blood flow to the brain. Consciousness should return fairly quickly. You might not feel normal for a little while after you faint. You might feel depressed or fatigued for a short time. Some people even feel nauseous and may vomit. […] Some people have only one or two episodes of vasovagal syncope in their life. For others, the problem is more chronic and happens with no warning.

• #81 Vasovagal Syncope – Melbourne Heart Group

  https://www.melbourneheart.com.au/for-patients/vasovagal-syncope/

  Being able to recognise early warning symptoms is crucial in controlling or preventing a full syncope episode. These symptoms may include dizziness, light-headedness, queasiness, nausea, clamminess, excessive sweating, abdominal discomfort, blurred vision, muffled hearing, and a sensation of curtains closing or darkening of vision. […] It is worth mentioning that attempting to stand up or walk during a VVS episode will exacerbate symptoms and potentially worsen the situation. Therefore, it is crucial to lie down and avoid standing up when experiencing a vasovagal episode. […] The long-term outlook is positive in people with VVS. Once adequate treatment is instituted, people can expect to lead a normal life. VVS can occur in clusters over time and can sometimes recur later in life.

• #82 Neurocardiogenic/Vasovagal Syncope (Fainting) | Children’s Mercy Kansas City

  https://www.childrensmercy.org/departments-and-clinics/heart-center/fainting/

  Symptoms can occur before, during or after the fainting episode. They can include: Feeling weak. Feeling shaky. Nausea. Dizziness. Feeling light-headed. Increased heart rate. Blurred vision. Loss of vision. Skin color changes, such as looking pale or flushed. Stiffening or jerking of the arms or legs that can look like a seizure. […] These symptoms are often due to a sudden drop in blood pressure and/or heart rate. Sudden drops in blood pressure can cause a decrease in blood flow to the brain, which causes the symptoms listed above. […] For most children, symptoms of syncope will get better or go away within 9 to 12 months. Overall, neurocardiogenic syncope alone is not a sign of significant heart disease.

• #83 Isolated vasovagal and vasovagal disease

  https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-5/Isolated-Vasovagal-and-Vasovagal-disease-Title-Isolated-Vasovagal-and-Vasova

  In general, the behavior of blood pressure during the first minutes of head-up tilt test before the beginning of vasovagal reaction is similar in VVS subjects and in control subjects without a history of fainting. […] It is known that clinical manifestations of VVS change significantly in older subjects and that medical history has a limited value in establishing the cause of syncope in older people. […] In subjects in whom VVS starts in old age, loss of consciousness cannot be regarded as an isolated manifestation, as it is frequently associated not only to cardiovascular or neurological diseases, but also to other dysautonomic disturbances. […] Vasovagal disease starting in old age progressively worsens over time, and major injuries are frequent, mainly when prodromes are lacking. […] Apart from the frequent association with hypertension, a progressive orthostatic hypotension is commonly seen in these patients because of age-related impairment in baroreflex mediated vasoconstriction and chronotropic responses of the heart.

• #84 The relationship between demographic factors and syncopal symptom in pediatric vasovagal syncope | Scientific Reports

  https://www.nature.com/articles/s41598-023-49722-w

  This research proposed to retrospectively analyze 20 years of clinical data and investigate the relationship between demographic factors and syncopal symptom in pediatric vasovagal syncope. […] The clinical symptoms of VVS are divided into syncope and pre-syncope. The syncope may be preceded by a series of pre-syncope symptoms such as dizziness, headache, blackness in front of the eyes, nausea, abdominal pain, pallor and sweating. […] The effects of age and sex on syncope in both models showed excellent stability (10% change in OR) compared to the univariate analysis. The effect of height on syncope has changed, showing a trend towards protection. Thus, in the fully adjusted model II for age, the risk of syncope increased by 27% for each 1-year increase in age. In the fully adjusted model II for height, the risk of syncope was reduced by 2% for each 1 cm increase in height (all P<0.01).

• #85 The relationship between demographic factors and syncopal symptom in pediatric vasovagal syncope | Scientific Reports

  https://www.nature.com/articles/s41598-023-49722-w

  After determined the independent linear relationship between demographic factors and syncopal symptom, we attempted to further explore whether a nonlinear relationship also existed between them. […] By two-piecewise Logistic regression and a recursive algorithm, we calculated the turning points for age, height and weight to be 10.67, 146 and 28.5. Which means, when age>10.67 years, the risk of syncope increases by 45% for each 1-year increase in age; when height<146 cm, the risk of syncope decreases by 4% for each 1 cm increase in height; when weight<28.5 kg, the risk of syncope decreases by 10% for each 1 kg increase in weight (all P<0.01). [...] Demographic factors such as sex, age, height and weight, which are strongly associated with syncopal symptom, are all independent influencers on syncope and can help pediatric syncopal clinicians worldwide to predict the risk of syncope and avoid unintended physical harm.

• #86 Syncope Clinical Presentation: History, Physical Examination

  https://emedicine.medscape.com/article/811669-clinical

  History and physical examination are the most specific and sensitive ways to evaluate syncope. […] In older adults, syncope frequently manifests as falls owing to amnesia or loss of consciousness, or presyncope that results in a fall particularly when they’re prone to falls and have several other fall risk factors. […] Prior faintness, dizziness, or light-headedness occurs in 70% of patients experiencing true syncope. Other symptoms, such as vertigo, weakness, diaphoresis, epigastric discomfort, nausea, blurred or faded vision, pallor, or paresthesias, may also occur in the presyncopal period. […] The duration of symptoms preceding a syncopal episode has been reported to be an average of 2.5 minutes in vasovagal syncope and an average of only 3 seconds in arrhythmia-related cardiac syncope.

• #87 Patient education: Syncope (fainting) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/syncope-fainting-beyond-the-basics/print

  In most cases of vasovagal syncope, you have some warning that you are near fainting. These signs include dizziness, feeling hot or cold, nausea, pale skin, „tunnel-like” vision, disturbance of hearing, and profuse sweating. After the episode, symptoms may continue because of continued low blood pressure. Some people feel extremely tired afterward. In some cases, particularly in older people, the person may not remember having experienced any warning symptoms after they recover.

• #88 Isolated vasovagal and vasovagal disease

  https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-5/Isolated-Vasovagal-and-Vasovagal-disease-Title-Isolated-Vasovagal-and-Vasova

  In general, the behavior of blood pressure during the first minutes of head-up tilt test before the beginning of vasovagal reaction is similar in VVS subjects and in control subjects without a history of fainting. […] It is known that clinical manifestations of VVS change significantly in older subjects and that medical history has a limited value in establishing the cause of syncope in older people. […] In subjects in whom VVS starts in old age, loss of consciousness cannot be regarded as an isolated manifestation, as it is frequently associated not only to cardiovascular or neurological diseases, but also to other dysautonomic disturbances. […] Vasovagal disease starting in old age progressively worsens over time, and major injuries are frequent, mainly when prodromes are lacking. […] Apart from the frequent association with hypertension, a progressive orthostatic hypotension is commonly seen in these patients because of age-related impairment in baroreflex mediated vasoconstriction and chronotropic responses of the heart.

• #89 Isolated vasovagal and vasovagal disease

  https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-5/Isolated-Vasovagal-and-Vasovagal-disease-Title-Isolated-Vasovagal-and-Vasova

  In general, the behavior of blood pressure during the first minutes of head-up tilt test before the beginning of vasovagal reaction is similar in VVS subjects and in control subjects without a history of fainting. […] It is known that clinical manifestations of VVS change significantly in older subjects and that medical history has a limited value in establishing the cause of syncope in older people. […] In subjects in whom VVS starts in old age, loss of consciousness cannot be regarded as an isolated manifestation, as it is frequently associated not only to cardiovascular or neurological diseases, but also to other dysautonomic disturbances. […] Vasovagal disease starting in old age progressively worsens over time, and major injuries are frequent, mainly when prodromes are lacking. […] Apart from the frequent association with hypertension, a progressive orthostatic hypotension is commonly seen in these patients because of age-related impairment in baroreflex mediated vasoconstriction and chronotropic responses of the heart.

• #90 The relationship between demographic factors and syncopal symptom in pediatric vasovagal syncope | Scientific Reports

  https://www.nature.com/articles/s41598-023-49722-w

  After determined the independent linear relationship between demographic factors and syncopal symptom, we attempted to further explore whether a nonlinear relationship also existed between them. […] By two-piecewise Logistic regression and a recursive algorithm, we calculated the turning points for age, height and weight to be 10.67, 146 and 28.5. Which means, when age>10.67 years, the risk of syncope increases by 45% for each 1-year increase in age; when height<146 cm, the risk of syncope decreases by 4% for each 1 cm increase in height; when weight<28.5 kg, the risk of syncope decreases by 10% for each 1 kg increase in weight (all P<0.01). [...] Demographic factors such as sex, age, height and weight, which are strongly associated with syncopal symptom, are all independent influencers on syncope and can help pediatric syncopal clinicians worldwide to predict the risk of syncope and avoid unintended physical harm.

• #91 The relationship between demographic factors and syncopal symptom in pediatric vasovagal syncope | Scientific Reports

  https://www.nature.com/articles/s41598-023-49722-w

  After determined the independent linear relationship between demographic factors and syncopal symptom, we attempted to further explore whether a nonlinear relationship also existed between them. […] By two-piecewise Logistic regression and a recursive algorithm, we calculated the turning points for age, height and weight to be 10.67, 146 and 28.5. Which means, when age>10.67 years, the risk of syncope increases by 45% for each 1-year increase in age; when height<146 cm, the risk of syncope decreases by 4% for each 1 cm increase in height; when weight<28.5 kg, the risk of syncope decreases by 10% for each 1 kg increase in weight (all P<0.01). [...] Demographic factors such as sex, age, height and weight, which are strongly associated with syncopal symptom, are all independent influencers on syncope and can help pediatric syncopal clinicians worldwide to predict the risk of syncope and avoid unintended physical harm.

• #92 Diagnosing and Treating Vasovagal Syncope | Banner Health

  https://www.bannerhealth.com/services/heart/vasovagal-syncope

  This response can lead to a sudden drop in blood pressure, which can cause fainting. […] It’s not always clear why vasovagal syncope occurs, but common triggers include: Prolonged standing in one position, which can cause blood to pool in the legs […] Changing positions quickly from lying down to standing up […] Emotional stress or anxiety […] Severe pain, such as from an injury […] Dehydration, especially after a recent illness like the flu, since lack of fluids can reduce blood volume and lead to fainting […] Heat exposure or exhaustion […] The sight of blood or needles. […] If you’re still having symptoms after adjusting your lifestyle, your provider may recommend: Medications: Prescribed medications may help regulate blood pressure or heart rate. […] Be sure to see your health care provider for follow-up appointments to make sure your treatment plan is working well.

• #93 How To Stop Fainting From Vasovagal Syncope | OneWelbeck

  https://onewelbeck.com/news/how-to-stop-fainting-from-vasovagal-syncope-focus-on-hydration/

  Recurrent fainting is seen commonly in patients who have a low or low normal blood pressure and have previously experienced episodes of light-headedness and dizziness, particularly when standing for a long time or in the heat, such as crowded areas like a school assembly or on public transport. It is important to learn to recognise the symptoms before the fate, so that evasive action can be taken to avoid injury. This is more likely to occur when fainting happens from a standing position. […] Major red flag symptoms for fainting or syncope include: fainting abruptly without any warning (unheralded syncope), fainting with preceding rapid palpitations (a sensation of a fluttering rapid heartbeat), fainting during exercise fainting resulting in injury, fainting with a prolonged confusion state (10 mins confusion after fainting). In these instances, you may need to seek urgent medical attention to rule out a significant non-benign cause of fainting.

• #94 Vasovagal Syncope: Symptoms, Diagnosis, Treatments – SelfDecode Health

  https://health.selfdecode.com/blog/vasovagal-syncope/

  Symptoms After Fainting Episodes: Lethargy, Confusion, Headaches, Vomiting. […] Defects in salt metabolism may be associated with more severe symptoms. Low dietary salt can lead to a lower blood volume and make the body more susceptible to fainting. However, more conclusive evidence is needed to clearly associate low dietary salt with an increased incidence of vasovagal syncope. […] Common vasovagal syncope is diagnosed if the fainting event is associated with emotional distress, such as fear or pain. Prolonged standing can also cause fainting. […] Usually, syncope is diagnosed based on the patients fainting episode, medical history, physical examination, and blood tests. Fainting episodes can either be one-time events or recurrent. They can even serve as a signal for more serious clinical disorders, such as allergies and diabetes.

• #95 Vasovagal Episode – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK470277/

  The efferent limb of the reflex arc is better understood. Increased vagal firing (increased parasympathetic activity) at the sinus node and the atrioventricular node causes a decrease in heart rate. This decrease in heart rate can be profound, with asystole that can be several seconds long. […] Typically, vasovagal syncope is treated conservatively. When known and avoidable, patients are instructed to avoid triggers. Patients are also instructed to drink more fluids to improve their volume status (and therefore their preload) and to change positions slowly. Patients are educated as to the „warning signs” of a vasovagal event and instructed to place themselves in a supine position should they feel an event coming. This often prevents actual syncope and reduces traumatic risk from falling.

• #96 Isolated vasovagal and vasovagal disease

  https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-5/Isolated-Vasovagal-and-Vasovagal-disease-Title-Isolated-Vasovagal-and-Vasova

  Isolated vasovagal syncope (VVS) is not a disease, but rather, the clinical manifestation of an autonomic reflex predisposed in all (or almost all) individuals. […] Classical vasovagal syncope (VVS) is mediated by emotional or orthostatic stress and can be diagnosed by history taking. […] In the vast majority of subjects, classical VVS is not associated with cardiovascular, neurological or other diseases, and therefore classical VVS constitutes an isolated manifestation (Isolated VVS). […] Vasovagal syncope is benign and very frequent; although estimates are difficult to make, it is likely that up to 50% of all individuals experience a loss of consciousness at some time during their lives. […] Isolated VVS subjects are generally normotensive and have normal blood pressure regulation outside the episodes of syncope.

• #97 Isolated vasovagal and vasovagal disease

  https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-5/Isolated-Vasovagal-and-Vasovagal-disease-Title-Isolated-Vasovagal-and-Vasova

  In general, the behavior of blood pressure during the first minutes of head-up tilt test before the beginning of vasovagal reaction is similar in VVS subjects and in control subjects without a history of fainting. […] It is known that clinical manifestations of VVS change significantly in older subjects and that medical history has a limited value in establishing the cause of syncope in older people. […] In subjects in whom VVS starts in old age, loss of consciousness cannot be regarded as an isolated manifestation, as it is frequently associated not only to cardiovascular or neurological diseases, but also to other dysautonomic disturbances. […] Vasovagal disease starting in old age progressively worsens over time, and major injuries are frequent, mainly when prodromes are lacking. […] Apart from the frequent association with hypertension, a progressive orthostatic hypotension is commonly seen in these patients because of age-related impairment in baroreflex mediated vasoconstriction and chronotropic responses of the heart.

• #98 Patient education: Syncope (fainting) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/syncope-fainting-beyond-the-basics/print

  Vasovagal syncope – The most common type of syncope in all age groups, but especially in young people, is called vasovagal syncope. Vasovagal syncope is by far the most common type of a group of conditions called reflex syncope. A variety of conditions can trigger vasovagal syncope, including physical or psychological stress, dehydration, bleeding, or pain. The heart rate may slow dramatically at the time of the faint, and the blood vessels (mainly the veins) in the body expand, causing blood to pool in the lower extremities and the bowels, resulting in less blood return to the heart and a low blood pressure (hypotension). This causes a decrease in blood flow to the brain which causes near or complete loss of consciousness. Fortunately, blood flow is usually sufficiently restored when the person falls down or is placed in a horizontal position.

• #99 Vasovagal syncope | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/vasovagal-syncope?content_id=CON-20155113

  Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme emotional distress. Vasovagal syncope also is called neurocardiogenic syncope. […] The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly. That leads to reduced blood flow to your brain, causing you to briefly lose consciousness. […] Before you faint due to vasovagal syncope, you may experience some of the following symptoms: Change in skin color. Lightheadedness. Tunnel vision your field of vision narrows so that you see only what’s in front of you. Upset stomach. Feeling warm. A cold, clammy sweat. Blurred vision. […] During a vasovagal syncope episode, people around you may notice: Jerky movements. A slow, weak pulse. Dilated pupils. […] Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again.

• #100 Common triggers of vasovagal syncope and how to reduce your risk of fainting – Harvard Health

  https://www.health.harvard.edu/diseases-and-conditions/common-triggers-of-vasovagal-syncope-and-how-to-reduce-your-risk-of-fainting

  If you’ve ever fainted at the sight of blood or from standing up too fast, you’ve experienced what’s known as vasovagal syncope, the most common cause of fainting. Up to a third of people have experienced an episode of vasovagal syncope at some point in their lives. […] Occasional episodes of vasovagal syncope are rarely a cause for concern. But if they happen often, it’s a good idea to see a doctor to rule out more serious underlying causes. […] Vasovagal syncope occurs when the vagus nerve, which carries signals from the brain to the rest of the body and controls functions including heart rate and blood pressure, becomes overstimulated in response to triggers such as stress, dehydration, or donating blood. The heart rate slows and blood vessels widen, causing a drop in blood pressure and reduced blood flow to the brain. This can lead to a loss of consciousness.

• #101 Patient education: Syncope (fainting) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/syncope-fainting-beyond-the-basics/print

  Vasovagal syncope – The most common type of syncope in all age groups, but especially in young people, is called vasovagal syncope. Vasovagal syncope is by far the most common type of a group of conditions called reflex syncope. A variety of conditions can trigger vasovagal syncope, including physical or psychological stress, dehydration, bleeding, or pain. The heart rate may slow dramatically at the time of the faint, and the blood vessels (mainly the veins) in the body expand, causing blood to pool in the lower extremities and the bowels, resulting in less blood return to the heart and a low blood pressure (hypotension). This causes a decrease in blood flow to the brain which causes near or complete loss of consciousness. Fortunately, blood flow is usually sufficiently restored when the person falls down or is placed in a horizontal position.

• #102 Neurocardiogenic Syncope Symptoms & Treatment | Baptist Health

  https://www.baptisthealth.com/care-services/conditions-treatments/neurocardiogenic-syncope

  Neurocardiogenic syncope, also known as vasovagal neurocardiogenic syncope, is a fainting spell that occurs when the body overreacts to certain triggers, like intense emotion, the sight of blood, extreme heat, dehydration, a long period of standing or intense pain. The trigger causes a persons heart rate and blood pressure to drop suddenly, and blood may pool in the legs. This leads to reduced blood flow to the brain, causing a brief loss of consciousness. […] The following symptoms may occur leading up to an episode of neurocardiogenic syncope: Blurred or tunnel vision, Fast or skipping heartbeat, Fuzzy or confused thoughts, Lightheadedness or dizziness, Nausea, Nervousness, Pale skin, Ringing in the ears, Sweating and/or feeling overly warm or cold. […] The main symptom is fainting with regained consciousness in a minute or two. Often, the affected person feels fine after he or she regains consciousness, but weakness, shakiness or sweating may persist for a short period. […] In most cases, neurocardiogenic syncope in itself is harmless. Injuries from a fall can be serious, so if you know you’re prone to these episodes, take steps to reduce your risk of falling.

• #103 Diagnosing and Treating Vasovagal Syncope | Banner Health

  https://www.bannerhealth.com/services/heart/vasovagal-syncope

  This response can lead to a sudden drop in blood pressure, which can cause fainting. […] It’s not always clear why vasovagal syncope occurs, but common triggers include: Prolonged standing in one position, which can cause blood to pool in the legs […] Changing positions quickly from lying down to standing up […] Emotional stress or anxiety […] Severe pain, such as from an injury […] Dehydration, especially after a recent illness like the flu, since lack of fluids can reduce blood volume and lead to fainting […] Heat exposure or exhaustion […] The sight of blood or needles. […] If you’re still having symptoms after adjusting your lifestyle, your provider may recommend: Medications: Prescribed medications may help regulate blood pressure or heart rate. […] Be sure to see your health care provider for follow-up appointments to make sure your treatment plan is working well.

• #104 How To Stop Fainting From Vasovagal Syncope | OneWelbeck

  https://onewelbeck.com/news/how-to-stop-fainting-from-vasovagal-syncope-focus-on-hydration/

  Vasovagal syncope, or more commonly known as fainting, is a condition that results in loss of consciousness which is usually transient without any prolonged complications, with rapid recovery and a return to normality afterwards. This condition is usually caused by low blood pressure or low heart rate or a combination of both. It is usually triggered by being in an upright position, particularly when there are other factors involved which predispose one to fainting which can include: dehydration, heat, stress, and being stood up in a single position for a long time. […] In most cases, fainting is preceded by feeling dizzy, or lightheaded, and may also be associated with palpitations, sweatiness, and nausea. Fainting can usually be aborted if one is able to respond to the early warning symptoms by sitting down or lying down, whilst keeping the feet elevated.

• #105 Diagnosing and Treating Vasovagal Syncope | Banner Health

  https://www.bannerhealth.com/services/heart/vasovagal-syncope

  This response can lead to a sudden drop in blood pressure, which can cause fainting. […] It’s not always clear why vasovagal syncope occurs, but common triggers include: Prolonged standing in one position, which can cause blood to pool in the legs […] Changing positions quickly from lying down to standing up […] Emotional stress or anxiety […] Severe pain, such as from an injury […] Dehydration, especially after a recent illness like the flu, since lack of fluids can reduce blood volume and lead to fainting […] Heat exposure or exhaustion […] The sight of blood or needles. […] If you’re still having symptoms after adjusting your lifestyle, your provider may recommend: Medications: Prescribed medications may help regulate blood pressure or heart rate. […] Be sure to see your health care provider for follow-up appointments to make sure your treatment plan is working well.

• #106 Diagnosing and Treating Vasovagal Syncope | Banner Health

  https://www.bannerhealth.com/services/heart/vasovagal-syncope

  This response can lead to a sudden drop in blood pressure, which can cause fainting. […] It’s not always clear why vasovagal syncope occurs, but common triggers include: Prolonged standing in one position, which can cause blood to pool in the legs […] Changing positions quickly from lying down to standing up […] Emotional stress or anxiety […] Severe pain, such as from an injury […] Dehydration, especially after a recent illness like the flu, since lack of fluids can reduce blood volume and lead to fainting […] Heat exposure or exhaustion […] The sight of blood or needles. […] If you’re still having symptoms after adjusting your lifestyle, your provider may recommend: Medications: Prescribed medications may help regulate blood pressure or heart rate. […] Be sure to see your health care provider for follow-up appointments to make sure your treatment plan is working well.

• #107 Diagnosing and Treating Vasovagal Syncope | Banner Health

  https://www.bannerhealth.com/services/heart/vasovagal-syncope

  This response can lead to a sudden drop in blood pressure, which can cause fainting. […] It’s not always clear why vasovagal syncope occurs, but common triggers include: Prolonged standing in one position, which can cause blood to pool in the legs […] Changing positions quickly from lying down to standing up […] Emotional stress or anxiety […] Severe pain, such as from an injury […] Dehydration, especially after a recent illness like the flu, since lack of fluids can reduce blood volume and lead to fainting […] Heat exposure or exhaustion […] The sight of blood or needles. […] If you’re still having symptoms after adjusting your lifestyle, your provider may recommend: Medications: Prescribed medications may help regulate blood pressure or heart rate. […] Be sure to see your health care provider for follow-up appointments to make sure your treatment plan is working well.

• #108 Vasovagal Syncope – Comprehensive Integrated Care

  https://www.ciccenters.com/vasovagal-syncope/

  A 43-year-old male briefly loses consciousnesses while taking a long hot shower. A slight dizziness sensation and partial tunnel vision preceded the event and then lights out. […] The Syndrome is called Vasovagal Syncope or Neurocardiogenic Syncope and is the most likely cause of syncope (fainting) in younger people. […] The typical scenario goes like thisSomeone standing or sitting for a long time, stress has likely accumulated in the body and activates the Vagus nerve which overcompensates by lowering heart rate and drops blood pressure causing syncope. A hot shower is a common place as well because the heat has already caused a lot of the blood to be shifted to the superficial tissues (a mechanism the body uses to cool down). With less blood available in tank so to speak, even a slight dip in blood pressure can cause syncope.

• #109 Vasovagal Syncope or Neurocardiogenic NCS – Pediatric Cardiology Center of Oregon

  https://www.pccoforegon.com/neurocardiogenic-ncs-or-vasovagal-syncope/

  Vasovagal syncope or neurocardiogenic syncope (NCS) is caused by a drop in blood pressure, quickly followed by faster then slower heart rate resulting in poor blood and oxygen flow to the brain which results in temporary loss of consciousness. […] Symptoms and triggers of vasovagal syncope include emotional stress or stressful conditions and pain especially among the young. Other situations or triggers can include prolonged standing, motionless standing, physical illness, abdominal pain or vomiting, inadequate food and fluids, dehydration, sleep deprivation, suddenly standing motionless following vigorous exercise, hot weather conditions or overheating, prolonged breath holds, hair grooming, micturition, choking or rapidly standing up from a sitting or lying position. […] The onset may be abrupt or gradual and is often associated with warning symptoms such as lightheadedness, dizziness, weakness, feeling hot or cold, fatigue, nausea, abdominal pain, sweating, pallor, visual disturbances or confusion. […] Patients often feel unwell after fainting. They may complain of symptoms including nausea, abdominal pain, clamminess, tremors, lightheadedness, headache, malaise, exhaustion and confusion.

• #110 Cardiac-related Syncope (Fainting) – Brigham and Women’s Hospital

  https://www.brighamandwomens.org/heart-and-vascular-center/diseases-and-conditions/syncope-fainting

  Many benign fainting spells are triggered by a vasovagal reaction (a sudden, transient drop in blood pressure resulting in a temporary loss of consciousness), which typically occurs during activities such as eating, urinating, defecating, or standing for long periods. […] Symptoms such as dizziness, sweating, nausea, diarrhea, vomiting, headache, visual changes, abnormal body movements, loss of control of bowel or bladder, and chest pain are important clues.

• #111 Vasovagal Syncope or Neurocardiogenic NCS – Pediatric Cardiology Center of Oregon

  https://www.pccoforegon.com/neurocardiogenic-ncs-or-vasovagal-syncope/

  Vasovagal syncope or neurocardiogenic syncope (NCS) is caused by a drop in blood pressure, quickly followed by faster then slower heart rate resulting in poor blood and oxygen flow to the brain which results in temporary loss of consciousness. […] Symptoms and triggers of vasovagal syncope include emotional stress or stressful conditions and pain especially among the young. Other situations or triggers can include prolonged standing, motionless standing, physical illness, abdominal pain or vomiting, inadequate food and fluids, dehydration, sleep deprivation, suddenly standing motionless following vigorous exercise, hot weather conditions or overheating, prolonged breath holds, hair grooming, micturition, choking or rapidly standing up from a sitting or lying position. […] The onset may be abrupt or gradual and is often associated with warning symptoms such as lightheadedness, dizziness, weakness, feeling hot or cold, fatigue, nausea, abdominal pain, sweating, pallor, visual disturbances or confusion. […] Patients often feel unwell after fainting. They may complain of symptoms including nausea, abdominal pain, clamminess, tremors, lightheadedness, headache, malaise, exhaustion and confusion.

• #112 Syncope (medicine) – Wikipedia

  https://en.wikipedia.org/wiki/Syncope_(medicine)

  „Vasovagal (situational) syncope is one of the most common types which may occur in response to any of a variety of triggers, such as scary, embarrassing or uneasy situations, during blood drawing, or moments of sudden unusually high stress. […] Associated symptoms may be felt in the minutes leading up to a vasovagal episode and are referred to as the prodrome. These consist of light-headedness, confusion, pallor, nausea, salivation, sweating, tachycardia, blurred vision, and sudden urge to defecate among other symptoms. […] Vasovagal syncope can be considered in two forms: Isolated episodes of loss of consciousness, unheralded by any warning symptoms for more than a few moments. These tend to occur in the adolescent age group and may be associated with fasting, exercise, abdominal straining, or circumstances promoting vaso-dilation (e.g., heat, alcohol). The subject is invariably upright. The tilt-table test, if performed, is generally negative.

• #113 Vasovagal Syncope or Neurocardiogenic NCS – Pediatric Cardiology Center of Oregon

  https://www.pccoforegon.com/neurocardiogenic-ncs-or-vasovagal-syncope/

  Vasovagal syncope or neurocardiogenic syncope (NCS) is caused by a drop in blood pressure, quickly followed by faster then slower heart rate resulting in poor blood and oxygen flow to the brain which results in temporary loss of consciousness. […] Symptoms and triggers of vasovagal syncope include emotional stress or stressful conditions and pain especially among the young. Other situations or triggers can include prolonged standing, motionless standing, physical illness, abdominal pain or vomiting, inadequate food and fluids, dehydration, sleep deprivation, suddenly standing motionless following vigorous exercise, hot weather conditions or overheating, prolonged breath holds, hair grooming, micturition, choking or rapidly standing up from a sitting or lying position. […] The onset may be abrupt or gradual and is often associated with warning symptoms such as lightheadedness, dizziness, weakness, feeling hot or cold, fatigue, nausea, abdominal pain, sweating, pallor, visual disturbances or confusion. […] Patients often feel unwell after fainting. They may complain of symptoms including nausea, abdominal pain, clamminess, tremors, lightheadedness, headache, malaise, exhaustion and confusion.

• #114 Vasovagal Syncope or Neurocardiogenic NCS – Pediatric Cardiology Center of Oregon

  https://www.pccoforegon.com/neurocardiogenic-ncs-or-vasovagal-syncope/

  Vasovagal syncope or neurocardiogenic syncope (NCS) is caused by a drop in blood pressure, quickly followed by faster then slower heart rate resulting in poor blood and oxygen flow to the brain which results in temporary loss of consciousness. […] Symptoms and triggers of vasovagal syncope include emotional stress or stressful conditions and pain especially among the young. Other situations or triggers can include prolonged standing, motionless standing, physical illness, abdominal pain or vomiting, inadequate food and fluids, dehydration, sleep deprivation, suddenly standing motionless following vigorous exercise, hot weather conditions or overheating, prolonged breath holds, hair grooming, micturition, choking or rapidly standing up from a sitting or lying position. […] The onset may be abrupt or gradual and is often associated with warning symptoms such as lightheadedness, dizziness, weakness, feeling hot or cold, fatigue, nausea, abdominal pain, sweating, pallor, visual disturbances or confusion. […] Patients often feel unwell after fainting. They may complain of symptoms including nausea, abdominal pain, clamminess, tremors, lightheadedness, headache, malaise, exhaustion and confusion.

• #115 Vasovagal Syncope or Neurocardiogenic NCS – Pediatric Cardiology Center of Oregon

  https://www.pccoforegon.com/neurocardiogenic-ncs-or-vasovagal-syncope/

  Vasovagal syncope or neurocardiogenic syncope (NCS) is caused by a drop in blood pressure, quickly followed by faster then slower heart rate resulting in poor blood and oxygen flow to the brain which results in temporary loss of consciousness. […] Symptoms and triggers of vasovagal syncope include emotional stress or stressful conditions and pain especially among the young. Other situations or triggers can include prolonged standing, motionless standing, physical illness, abdominal pain or vomiting, inadequate food and fluids, dehydration, sleep deprivation, suddenly standing motionless following vigorous exercise, hot weather conditions or overheating, prolonged breath holds, hair grooming, micturition, choking or rapidly standing up from a sitting or lying position. […] The onset may be abrupt or gradual and is often associated with warning symptoms such as lightheadedness, dizziness, weakness, feeling hot or cold, fatigue, nausea, abdominal pain, sweating, pallor, visual disturbances or confusion. […] Patients often feel unwell after fainting. They may complain of symptoms including nausea, abdominal pain, clamminess, tremors, lightheadedness, headache, malaise, exhaustion and confusion.

• #116 Vasovagal Episode – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK470277/

  A vasovagal episode or vasovagal syncope is the most common form of reflex syncope. Reflex syncope describes any form of syncopal episode caused by a failure in the autoregulation of blood pressure, and ultimately, a drop in cerebral perfusion pressure resulting in a transient loss of consciousness. Vasovagal syncope may be triggered by pain or emotional upset, although frequently a specific trigger cannot be identified. […] Most patients with vasovagal syncope present with a history of a syncopal prodrome. Patients will classically describe a feeling of lightheadedness. Feelings of warmth and nausea are common. Many patients describe tunnel vision, ringing in their ears, and profuse sweating. Patients should return to consciousness spontaneously. During the event, the patient will usually be bradycardic, hypotensive, pale, and diaphoretic.

• #117 Syncope: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/811669-overview

  Syncope is defined as a transient, self-limited loss of consciousness with an inability to maintain postural tone that is followed by spontaneous recovery. This definition excludes seizures, coma, shock, or other states of altered consciousness. Although most causes of syncope are benign, this symptom presages a life-threatening event in a small subset of patients. […] Presyncopal symptoms reported may include the following: Prior faintness, dizziness, or light-headedness (70% of cases of true syncope) […] Vasovagal syncope is the most common type in young adults but can occur at any age. It usually occurs in a standing position and is precipitated by fear, emotional stress, or pain (eg, after a needlestick). Autonomic symptoms are predominant. Classically, nausea, diaphoresis, fading or „graying out” of vision, epigastric discomfort, and light-headedness precede syncope by a few minutes. The syncope is thought to occur secondary to efferent vasodepressor reflexes by a number of mechanisms, resulting in decreased peripheral vascular resistance. It is not life-threatening and occurs sporadically. […] Vasovagal syncope has a uniformly excellent prognosis. This condition does not increase the mortality, and recurrences are infrequent.

• #118 Neurocardiogenic/Vasovagal Syncope (Fainting) | Children’s Mercy Kansas City

  https://www.childrensmercy.org/departments-and-clinics/heart-center/fainting/

  Symptoms can occur before, during or after the fainting episode. They can include: Feeling weak. Feeling shaky. Nausea. Dizziness. Feeling light-headed. Increased heart rate. Blurred vision. Loss of vision. Skin color changes, such as looking pale or flushed. Stiffening or jerking of the arms or legs that can look like a seizure. […] These symptoms are often due to a sudden drop in blood pressure and/or heart rate. Sudden drops in blood pressure can cause a decrease in blood flow to the brain, which causes the symptoms listed above. […] For most children, symptoms of syncope will get better or go away within 9 to 12 months. Overall, neurocardiogenic syncope alone is not a sign of significant heart disease.

• #119 Fainting (Syncope) | Symptoms, Diagnosis & Treatment

  https://www.cincinnatichildrens.org/health/f/fainting

  Dizziness, muffled hearing and visual changes (such as blacking out) often happen before fainting. Many patients complain of these symptoms without syncope. It is more common to have these symptoms when it is hot or when changing positions from sitting or lying down to standing. […] These changes result in low blood pressure (hypotension). This leads to dizziness and fainting. […] Most patients with neurally mediated syncope will outgrow their symptoms. But this may take several years.

• #120 Syncope (AKA Fainting) in Children: Causes, Symptoms & Treatment – Children’s Hospital of Orange County

  https://choc.org/heart/syncope-fainting/

  What are the symptoms of syncope in children? The following are the most common symptoms of syncope. However, each child may experience symptoms differently. Also, the symptoms of syncope may look like other conditions or medical problems. Consult your child’s health care provider for a diagnosis. Some children will experience presyncope, which is the feeling that they are about to faint. Your child may be able to tell you that he/she is “about to pass out,” “feels like I might faint,” “feels like the room is spinning” or “feels dizzy.” These sensations usually occur immediately before fainting occurs. There may be enough warning to enable your child to sit or lie down before loss of consciousness occurs; this can prevent injuries that may occur due to falling during syncope. […] In other instances, the child will have no presyncopal sensations, but will simply faint.

• #121 Isolated vasovagal and vasovagal disease

  https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-5/Isolated-Vasovagal-and-Vasovagal-disease-Title-Isolated-Vasovagal-and-Vasova

  In general, the behavior of blood pressure during the first minutes of head-up tilt test before the beginning of vasovagal reaction is similar in VVS subjects and in control subjects without a history of fainting. […] It is known that clinical manifestations of VVS change significantly in older subjects and that medical history has a limited value in establishing the cause of syncope in older people. […] In subjects in whom VVS starts in old age, loss of consciousness cannot be regarded as an isolated manifestation, as it is frequently associated not only to cardiovascular or neurological diseases, but also to other dysautonomic disturbances. […] Vasovagal disease starting in old age progressively worsens over time, and major injuries are frequent, mainly when prodromes are lacking. […] Apart from the frequent association with hypertension, a progressive orthostatic hypotension is commonly seen in these patients because of age-related impairment in baroreflex mediated vasoconstriction and chronotropic responses of the heart.

• #122 Isolated vasovagal and vasovagal disease

  https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-5/Isolated-Vasovagal-and-Vasovagal-disease-Title-Isolated-Vasovagal-and-Vasova

  In general, the behavior of blood pressure during the first minutes of head-up tilt test before the beginning of vasovagal reaction is similar in VVS subjects and in control subjects without a history of fainting. […] It is known that clinical manifestations of VVS change significantly in older subjects and that medical history has a limited value in establishing the cause of syncope in older people. […] In subjects in whom VVS starts in old age, loss of consciousness cannot be regarded as an isolated manifestation, as it is frequently associated not only to cardiovascular or neurological diseases, but also to other dysautonomic disturbances. […] Vasovagal disease starting in old age progressively worsens over time, and major injuries are frequent, mainly when prodromes are lacking. […] Apart from the frequent association with hypertension, a progressive orthostatic hypotension is commonly seen in these patients because of age-related impairment in baroreflex mediated vasoconstriction and chronotropic responses of the heart.

• #123 Vasovagal Syncope: Causes, Symptoms, and Treatment – WoW Health

  https://www.mywowhealth.com/vasovagal-syncope-causes-symptoms-and-treatment/

  Furthermore, if you have been previously diagnosed with vasovagal syncope, but you notice that the symptoms accompanying your attacks change or that your attacks have become more frequent, it’s crucial to reach out to your healthcare provider. Changes in your symptoms or an increase in the frequency of your attacks may suggest a need to adjust your treatment plan or investigate the possibility of other health conditions.

• #124 How To Stop Fainting From Vasovagal Syncope | OneWelbeck

  https://onewelbeck.com/news/how-to-stop-fainting-from-vasovagal-syncope-focus-on-hydration/

  Recurrent fainting is seen commonly in patients who have a low or low normal blood pressure and have previously experienced episodes of light-headedness and dizziness, particularly when standing for a long time or in the heat, such as crowded areas like a school assembly or on public transport. It is important to learn to recognise the symptoms before the fate, so that evasive action can be taken to avoid injury. This is more likely to occur when fainting happens from a standing position. […] Major red flag symptoms for fainting or syncope include: fainting abruptly without any warning (unheralded syncope), fainting with preceding rapid palpitations (a sensation of a fluttering rapid heartbeat), fainting during exercise fainting resulting in injury, fainting with a prolonged confusion state (10 mins confusion after fainting). In these instances, you may need to seek urgent medical attention to rule out a significant non-benign cause of fainting.

• #125 Vasovagal Syncope: Causes, Symptoms, and Treatment – WoW Health

  https://www.mywowhealth.com/vasovagal-syncope-causes-symptoms-and-treatment/

  Furthermore, if you have been previously diagnosed with vasovagal syncope, but you notice that the symptoms accompanying your attacks change or that your attacks have become more frequent, it’s crucial to reach out to your healthcare provider. Changes in your symptoms or an increase in the frequency of your attacks may suggest a need to adjust your treatment plan or investigate the possibility of other health conditions.

• #126 Understanding Vasovagal Syncope: Mark L. Meyer, MD, FACP, FACC: Board Certified Physician

  https://www.cardiologistnyc.com/blog/understanding-vasovagal-syncope

  The symptoms of vasovagal syncope often occur in a predictable pattern. Individuals may experience warning signs before fainting, such as lightheadedness, nausea, sweating, blurred vision, and paleness. In some cases, people might have a few seconds of warning before losing consciousness, allowing them to sit or lie down to prevent injury from a fall. […] Vasovagal syncope can significantly affect the quality of life. Individuals may experience anxiety and fear of fainting, leading to social withdrawal and reduced participation in daily activities. For example, someone who frequently faints in crowded places or during stressful situations may avoid public gatherings, travel, or even routine medical appointments. […] Vasovagal syncope is a manageable condition with the right combination of lifestyle modifications and patient education. Ongoing research continues to enhance our understanding and management of this common cause of fainting. By staying informed and proactive, individuals with vasovagal syncope can lead fulfilling and active lives.

• #127 Vasovagal Syncope

  https://johnshopkinshealthcare.staywellsolutionsonline.com/Library/Encyclopedia/134,592

  Vasovagal syncope itself is generally not dangerous. Of course, fainting can lead to injuries from falling. Or it can be dangerous if it happens at certain times, like while driving. Most people with rare episodes of vasovagal syncope can drive safely. If you have chronic syncope that is not under control, your healthcare provider may advise against driving. This is especially likely if you dont usually have warning signs before you faint. […] Vasovagal syncope is the most common cause of fainting. It happens when the blood vessels open too wide or the heartbeat slows, causing a temporary lack of blood flow to the brain.

• #128 Vasovagal Episode – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK470277/

  The efferent limb of the reflex arc is better understood. Increased vagal firing (increased parasympathetic activity) at the sinus node and the atrioventricular node causes a decrease in heart rate. This decrease in heart rate can be profound, with asystole that can be several seconds long. […] Typically, vasovagal syncope is treated conservatively. When known and avoidable, patients are instructed to avoid triggers. Patients are also instructed to drink more fluids to improve their volume status (and therefore their preload) and to change positions slowly. Patients are educated as to the „warning signs” of a vasovagal event and instructed to place themselves in a supine position should they feel an event coming. This often prevents actual syncope and reduces traumatic risk from falling.

• #129 Diagnosing and Treating Vasovagal Syncope | Banner Health

  https://www.bannerhealth.com/services/heart/vasovagal-syncope

  Managing vasovagal syncope involves understanding it and recognizing your triggers. Here are some tips: Pay attention to what might cause your fainting episodes and try to avoid those situations. […] If you feel faint, lie down or sit with your head between your legs immediately so you’re less likely to fall and hurt yourself. […] If you faint for more than a few minutes or have other symptoms that concern you, get medical attention right away.

• #130 Vasovagal Syncope – Melbourne Heart Group

  https://www.melbourneheart.com.au/for-patients/vasovagal-syncope/

  Being able to recognise early warning symptoms is crucial in controlling or preventing a full syncope episode. These symptoms may include dizziness, light-headedness, queasiness, nausea, clamminess, excessive sweating, abdominal discomfort, blurred vision, muffled hearing, and a sensation of curtains closing or darkening of vision. […] It is worth mentioning that attempting to stand up or walk during a VVS episode will exacerbate symptoms and potentially worsen the situation. Therefore, it is crucial to lie down and avoid standing up when experiencing a vasovagal episode. […] The long-term outlook is positive in people with VVS. Once adequate treatment is instituted, people can expect to lead a normal life. VVS can occur in clusters over time and can sometimes recur later in life.

• #131 How to Avert a Vasovagal Episode | envisionsrh

  https://www.envisionsrh.com/how-to-avoid-vasovagal

  Everyone hates a vasovagal episode. […] If you recognize the signs and symptoms of a vasovagal, you can almost always stop it and prevent loss of consciousness. […] Essential Point Vasovagal reactions are common, scary, and preventable. […] This combination leads to reduced blood flow to the brain and syncope. […] Isometric contraction of the muscles of the hands, arms, hands, feet, and legs can immediately stop the vasovagal reaction in its tracks and prevent fainting. […] Be Alert for Pre-Syncopal Signs or Symptoms Before a Trigger […] Sweating Lightheadedness, dizziness Nausea Ringing in the ears Blurred or reduced vision (spots, dark, grey tone, or tunnel-vision) Fatigue, restlessness Sudden sensation of feeling hot or cold Sudden feeling of need to urinate or defecate Face looks pale or green or grey Dilated pupils Yawning.

• #132 Vasovagal syncope (neurocardiogenic syncope, fainting) | Sunshine Coast Cardiology

  http://www.sccardiology.com.au/conditions-and-treatments/vasovagal-syncope-neurocardiogenic-syncope-fainting/

  Learning to take precautions to avoid potential triggers and minimise the potential risk of harm can be effective for sufferers of vasovagal syncope. […] If you have a feeling that you will pass out during any activity, you should immediately lie down and elevate your legs. If you do faint, stay lying down for ten minutes, then, sit up slowly of you need to get up. Counter-manoeuvres such as tensing your arms with clenched fists, leg pumping, and leg-crossing may stop a vasovagal syncopal episode, or at least delay it long enough that you can lie down with the feet elevated.

• #133 How to Avert a Vasovagal Episode | envisionsrh

  https://www.envisionsrh.com/how-to-avoid-vasovagal

  If they say yes, let them know that they can prevent it from happening again by contracting the muscles in the extremities as soon as they notice it starting. […] Be Alert for Signs of an Impending Vasovagal Response If you havent talked with your client about how to prevent a vasovagal reaction beforehand, watch for signs and symptoms of a vasovagal.

• #134 Vasovagal Syncope – Melbourne Heart Group

  https://www.melbourneheart.com.au/for-patients/vasovagal-syncope/

  Being able to recognise early warning symptoms is crucial in controlling or preventing a full syncope episode. These symptoms may include dizziness, light-headedness, queasiness, nausea, clamminess, excessive sweating, abdominal discomfort, blurred vision, muffled hearing, and a sensation of curtains closing or darkening of vision. […] It is worth mentioning that attempting to stand up or walk during a VVS episode will exacerbate symptoms and potentially worsen the situation. Therefore, it is crucial to lie down and avoid standing up when experiencing a vasovagal episode. […] The long-term outlook is positive in people with VVS. Once adequate treatment is instituted, people can expect to lead a normal life. VVS can occur in clusters over time and can sometimes recur later in life.

• #135 Vasovagal Episode – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK470277/

  The efferent limb of the reflex arc is better understood. Increased vagal firing (increased parasympathetic activity) at the sinus node and the atrioventricular node causes a decrease in heart rate. This decrease in heart rate can be profound, with asystole that can be several seconds long. […] Typically, vasovagal syncope is treated conservatively. When known and avoidable, patients are instructed to avoid triggers. Patients are also instructed to drink more fluids to improve their volume status (and therefore their preload) and to change positions slowly. Patients are educated as to the „warning signs” of a vasovagal event and instructed to place themselves in a supine position should they feel an event coming. This often prevents actual syncope and reduces traumatic risk from falling.

• #136 Vasovagal syncope | Altru Health System

  https://www.altru.org/health-library/conditions/vasovagal-syncope

  Your healthcare professional may recommend ways to lessen the pooling of blood in your legs. These may include foot exercises, wearing compression stockings or tensing your leg muscles when standing. You may need to increase salt in your diet if you don’t usually have high blood pressure. Avoid prolonged standing especially in hot, crowded places and drink plenty of fluids. […] Very rarely, inserting an electrical pacemaker to regulate the heartbeat helps some people with vasovagal syncope who haven’t been helped by other treatments.

• #137 Vasovagal Syncope: Causes, Symptoms, Treatment & Prevention

  https://www.apollohospitals.com/diseases-and-conditions/vasovagal-syncope-causes-symptoms-diagnosis-prevention-treatment

  After an episode of vasovagal syncope, some people feel uncomfortable for a few hours or few days and even longer durations. During the post fainting period, you may experience nausea, dizziness, fatigue, and appetite loss. […] If you suffer from vasovagal syncope, then to prevent fainting, you need to stay away from hot places and avoid standing for long durations. If you feel nauseous, sweaty, or lightheaded, you need to lie down and raise your legs. If you face frequent vasovagal syncope, you also need to make lifestyle changes like eating more salt and taking more fluids.

• #138 Vasovagal Syncope: Symptoms, Diagnosis, Treatments – SelfDecode Health

  https://health.selfdecode.com/blog/vasovagal-syncope/

  Vasovagal syncope occurs by the activation of a heart reflex (hypotension/bradycardia reflex) through the stimulation of the vagus nerve. This reflex causes a rapid decrease in heartbeat and widening of blood vessels. […] Patients usually reported feeling dizzy or lightheaded prior to the blacking out event. Some also reported vertigo, weakness, nausea, or vision problems. Syncope patients commented that their vision problems ranged from blurred vision to increased sensitivity to light. […] After the fainting event, some people recovered quickly but still had mild nausea and confusion. Some people reported successfully reducing the incidence of syncope events by limiting alcohol and caffeine consumption.

• #139 Vasovagal syncope | Altru Health System

  https://www.altru.org/health-library/conditions/vasovagal-syncope

  Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again. […] Vasovagal syncope occurs when the part of your nervous system that regulates heart rate and blood pressure overreacts to a trigger. […] During a vasovagal syncope episode, your heart rate slows, and the blood vessels in your legs widen. This allows blood to pool in your legs, which lowers your blood pressure. The drop in blood pressure and slowed heart rate quickly reduce blood flow to your brain, and you faint. […] In most cases of vasovagal syncope, treatment is unnecessary. Your healthcare professional may help you understand your fainting triggers and discuss ways you might avoid them. […] If vasovagal syncope interferes with your quality of life, your healthcare professional may suggest trying one or more of the following remedies: A drug called fludrocortisone acetate that’s usually used to treat low blood pressure may be helpful in preventing vasovagal syncope. Selective serotonin reuptake inhibitors also may be used.

• #140 Vasovagal syncope | Altru Health System

  https://www.altru.org/health-library/conditions/vasovagal-syncope

  Your healthcare professional may recommend ways to lessen the pooling of blood in your legs. These may include foot exercises, wearing compression stockings or tensing your leg muscles when standing. You may need to increase salt in your diet if you don’t usually have high blood pressure. Avoid prolonged standing especially in hot, crowded places and drink plenty of fluids. […] Very rarely, inserting an electrical pacemaker to regulate the heartbeat helps some people with vasovagal syncope who haven’t been helped by other treatments.

• #141 Diagnosing and Treating Vasovagal Syncope | Banner Health

  https://www.bannerhealth.com/services/heart/vasovagal-syncope

  This response can lead to a sudden drop in blood pressure, which can cause fainting. […] It’s not always clear why vasovagal syncope occurs, but common triggers include: Prolonged standing in one position, which can cause blood to pool in the legs […] Changing positions quickly from lying down to standing up […] Emotional stress or anxiety […] Severe pain, such as from an injury […] Dehydration, especially after a recent illness like the flu, since lack of fluids can reduce blood volume and lead to fainting […] Heat exposure or exhaustion […] The sight of blood or needles. […] If you’re still having symptoms after adjusting your lifestyle, your provider may recommend: Medications: Prescribed medications may help regulate blood pressure or heart rate. […] Be sure to see your health care provider for follow-up appointments to make sure your treatment plan is working well.

• #142 Vasovagal Syncope: Care Instructions | Kaiser Permanente

  https://healthy.kaiserpermanente.org/health-wellness/health-encyclopedia/he.vasovagal-syncope-care-instructions.abr0578

  Vasovagal syncope (say „vay-zoh-VAY-gul SING-kuh-pee”) is sudden dizziness or fainting that can be set off by things such as pain, stress, fear, or trauma. You may sweat or feel lightheaded, sick to your stomach, or tingly. […] This type of fainting is often easy to predict. For example, it happens to some people when they see blood or have to get a shot. They may feel symptoms before they faint. […] Watch closely for changes in your health, and be sure to contact your doctor if: […] You have more episodes of fainting at home. […] You do not get better as expected.

• #143 Vasovagal syncope | Altru Health System

  https://www.altru.org/health-library/conditions/vasovagal-syncope

  Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting within about 15 to 30 minutes you’re at risk of fainting again. […] Vasovagal syncope occurs when the part of your nervous system that regulates heart rate and blood pressure overreacts to a trigger. […] During a vasovagal syncope episode, your heart rate slows, and the blood vessels in your legs widen. This allows blood to pool in your legs, which lowers your blood pressure. The drop in blood pressure and slowed heart rate quickly reduce blood flow to your brain, and you faint. […] In most cases of vasovagal syncope, treatment is unnecessary. Your healthcare professional may help you understand your fainting triggers and discuss ways you might avoid them. […] If vasovagal syncope interferes with your quality of life, your healthcare professional may suggest trying one or more of the following remedies: A drug called fludrocortisone acetate that’s usually used to treat low blood pressure may be helpful in preventing vasovagal syncope. Selective serotonin reuptake inhibitors also may be used.

• #144 Vasovagal Syncope: Understanding the Causes, Symptoms, and Prevention

  https://longmoreclinic.org/vasovagal-syncope-understanding-the-causes-symptoms-and-prevention/

  While vasovagal syncope is usually harmless, it’s essential to consult a healthcare provider if you experience recurrent fainting episodes, faint without a clear trigger, or hurt yourself during a fainting spell. Additionally, seek medical help if you have a family history of heart disease or sudden death, as fainting may indicate an underlying heart condition. […] In conclusion, Vasovagal syncope is a common condition characterized by a temporary loss of consciousness due to a sudden drop in heart rate and blood pressure. Recognizing the symptoms and triggers can help prevent fainting episodes and minimize the risk of injury. If you experience recurrent fainting or have concerns about your health, consult a healthcare provider for a proper evaluation and appropriate management.

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