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• #1 Content – Health Encyclopedia – University of Rochester Medical Center

  https://www.urmc.rochester.edu/encyclopedia/content?ContentTypeID=134&ContentID=231

  Ventricular tachycardia (VT) is a fast, abnormal heart rhythm (arrhythmia). It starts in your hearts lower chambers. These are called ventricles. It’s defined as three or more heartbeats in a row, at a rate of more than 100 beats a minute. VT can be deadly if it lasts for more than a few seconds at a time. Sustained VT is when it lasts for more than 30 seconds. It can also be linked to a blood flow issue, such as abnormal blood pressure. Nonsustained VT lasts less than 30 seconds. […] VT symptoms include: Fast heartbeat, or a fluttering feeling in the chest (palpitations). Dizziness. Lightheadedness. Chest pain. Neck tightness. Shortness of breath. Fainting. Cardiac arrest. In some cases, there are no symptoms at all. […] Some people may have mild symptoms from VT. Or they may have no symptoms at all. But for others, VT can be dangerous. It can lead to fainting, sudden cardiac arrest, or death.

• #2 Ventricular Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK532954/

  Ventricular tachycardia (VT) is a wide complex arrhythmia of ventricular origin, defined as three or more consecutive beats at a rate of more than 100 beats per minute. Sustained ventricular tachycardia is defined as tachycardia that continues for more than 30 seconds or leads to hemodynamic compromise within 30 seconds and requires intervention. On the other hand, non-sustained ventricular tachycardia lasts less than 30 seconds and does not cause hemodynamic instability. Ischemic heart disease is the most common cause of ventricular tachycardia, and VT has a wide range of clinical presentations, including palpitations, chest pain, shortness of breath, syncope, and cardiac arrest. […] The clinical presentation of ventricular tachycardia varies from palpitation to sudden cardiac death. For appropriate management of VT and prevention of sudden cardiac death, it is essential to understand the pathophysiology of ventricular tachycardia and underlying structural heart disease.

• #3 Ventricular Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK532954/

  Ventricular tachycardia (VT) is a wide complex arrhythmia of ventricular origin, defined as three or more consecutive beats at a rate of more than 100 beats per minute. Sustained ventricular tachycardia is defined as tachycardia that continues for more than 30 seconds or leads to hemodynamic compromise within 30 seconds and requires intervention. On the other hand, non-sustained ventricular tachycardia lasts less than 30 seconds and does not cause hemodynamic instability. Ischemic heart disease is the most common cause of ventricular tachycardia, and VT has a wide range of clinical presentations, including palpitations, chest pain, shortness of breath, syncope, and cardiac arrest. […] The clinical presentation of ventricular tachycardia varies from palpitation to sudden cardiac death. For appropriate management of VT and prevention of sudden cardiac death, it is essential to understand the pathophysiology of ventricular tachycardia and underlying structural heart disease.

• #4 Content – Health Encyclopedia – University of Rochester Medical Center

  https://www.urmc.rochester.edu/encyclopedia/content?ContentTypeID=134&ContentID=231

  Ventricular tachycardia (VT) is a fast, abnormal heart rhythm (arrhythmia). It starts in your hearts lower chambers. These are called ventricles. It’s defined as three or more heartbeats in a row, at a rate of more than 100 beats a minute. VT can be deadly if it lasts for more than a few seconds at a time. Sustained VT is when it lasts for more than 30 seconds. It can also be linked to a blood flow issue, such as abnormal blood pressure. Nonsustained VT lasts less than 30 seconds. […] VT symptoms include: Fast heartbeat, or a fluttering feeling in the chest (palpitations). Dizziness. Lightheadedness. Chest pain. Neck tightness. Shortness of breath. Fainting. Cardiac arrest. In some cases, there are no symptoms at all. […] Some people may have mild symptoms from VT. Or they may have no symptoms at all. But for others, VT can be dangerous. It can lead to fainting, sudden cardiac arrest, or death.

• #5 Ventricular Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK532954/

  Ventricular tachycardia (VT) is a wide complex arrhythmia of ventricular origin, defined as three or more consecutive beats at a rate of more than 100 beats per minute. Sustained ventricular tachycardia is defined as tachycardia that continues for more than 30 seconds or leads to hemodynamic compromise within 30 seconds and requires intervention. On the other hand, non-sustained ventricular tachycardia lasts less than 30 seconds and does not cause hemodynamic instability. Ischemic heart disease is the most common cause of ventricular tachycardia, and VT has a wide range of clinical presentations, including palpitations, chest pain, shortness of breath, syncope, and cardiac arrest. […] The clinical presentation of ventricular tachycardia varies from palpitation to sudden cardiac death. For appropriate management of VT and prevention of sudden cardiac death, it is essential to understand the pathophysiology of ventricular tachycardia and underlying structural heart disease.

• #6 Content – Health Encyclopedia – University of Rochester Medical Center

  https://www.urmc.rochester.edu/encyclopedia/content?ContentTypeID=134&ContentID=231

  Ventricular tachycardia (VT) is a fast, abnormal heart rhythm (arrhythmia). It starts in your hearts lower chambers. These are called ventricles. It’s defined as three or more heartbeats in a row, at a rate of more than 100 beats a minute. VT can be deadly if it lasts for more than a few seconds at a time. Sustained VT is when it lasts for more than 30 seconds. It can also be linked to a blood flow issue, such as abnormal blood pressure. Nonsustained VT lasts less than 30 seconds. […] VT symptoms include: Fast heartbeat, or a fluttering feeling in the chest (palpitations). Dizziness. Lightheadedness. Chest pain. Neck tightness. Shortness of breath. Fainting. Cardiac arrest. In some cases, there are no symptoms at all. […] Some people may have mild symptoms from VT. Or they may have no symptoms at all. But for others, VT can be dangerous. It can lead to fainting, sudden cardiac arrest, or death.

• #7 Clinical Symptoms in Patients With Sustained Ventricular Tachycardia

  https://pmc.ncbi.nlm.nih.gov/articles/PMC1306023/

  We questioned 113 patients with subsequently diagnosed sustained ventricular tachycardia (VT) regarding the symptoms that prompted their seeking hospital treatment, eliciting the following: 15% of patients had lost consciousness, 15% had near syncope, 35% had mild lightheadedness and 35% had no cerebral symptoms. […] Other symptoms included palpitations in 57% of patients, chest pain in 27%, dyspnea in 25%, weakness in 6%, nausea or diaphoresis in 3% each and flushing in 2%. […] In some patients, VT may be associated with mild or atypical symptoms. The severity of cerebral symptoms is at least partially related to the VT rate and a patient’s underlying heart disease.

• #8 Ventricular Tachycardia Clinical Presentation: History, Physical Examination

  https://emedicine.medscape.com/article/159075-clinical

  Ventricular tachycardia (VT) can be symptomatic. Symptoms of VT are often a function of the associated heart rate, or the causal process, such as an acute myocardial infarction (MI). Symptomatic patients typically present with palpitation, lightheadedness, and syncope from diminished cerebral perfusion. Chest pain may result from ischemia or from the rhythm itself. Understandably, patients often experience anxiety. Syncope is more common when VT occurs in the setting of structural heart disease. […] Some patients describe a sensation of neck fullness, which may be related to increased central venous pressure and occasional cannon A waves. Dyspnea may be related to increased pulmonary venous pressures and occasional left atrial contraction against a closed mitral valve. […] VT may also be asymptomatic, or the symptoms may be those of the associated triggered therapy (eg, an implantable cardioverter-defibrillator [ICD] shock).

• #9 Ventricular Tachycardia (VT) | Frankel Cardiovascular Center | Michigan Medicine

  https://www.umcvc.org/conditions-treatments/ventricular-tachycardia-vt

  Ventricular tachycardia (VT) is a rapid heart rate that originates in the lower chambers of the heart, or ventricles, due to a malfunction of the heart’s electrical system. VT is defined by a pulse of more than 100 beats per minute with at least three irregular heartbeats in a row. The heart may beat inefficiently which can result in the body not receiving an adequate blood supply. […] VT can be harmless if it lasts only a few beats, but if it continues and is untreated, it can be life-threatening and cause sudden cardiac death. […] Symptoms of VT can include a feeling of a racing heart or that the heart is going to burst, lightheadedness and fatigue, chest pain and anxiety. […] VT can also occur without any symptoms. […] If you have a history of VT, you may not require any treatment. In other cases, you may need a device implanted to automatically stop the tachycardia, or rapid heart rate, when it starts. […] Treatments for VT are aimed at immediately restoring a normal heart rhythm and preventing future episodes.

• #10 Ventricular tachycardia Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/diseases-conditions/ventricular-tachycardia

  Ventricular tachycardia (VT) is a rapid heartbeat that starts in the lower chambers of the heart (ventricles). […] You may have symptoms if the heart rate during a VT episode is very fast or lasts longer than a few seconds. Symptoms may include: Chest discomfort (angina), Fainting (syncope), Lightheadedness or dizziness, Sensation of feeling the heart beat (palpitations), Shortness of breath. […] Symptoms may start and stop suddenly. In some cases, there are no symptoms. […] Ventricular tachycardia may not cause symptoms in some people. However, it can be deadly. It is a major cause of sudden cardiac death.

• #11 Clinical Symptoms in Patients With Sustained Ventricular Tachycardia

  https://pmc.ncbi.nlm.nih.gov/articles/PMC1306023/

  We questioned 113 patients with subsequently diagnosed sustained ventricular tachycardia (VT) regarding the symptoms that prompted their seeking hospital treatment, eliciting the following: 15% of patients had lost consciousness, 15% had near syncope, 35% had mild lightheadedness and 35% had no cerebral symptoms. […] Other symptoms included palpitations in 57% of patients, chest pain in 27%, dyspnea in 25%, weakness in 6%, nausea or diaphoresis in 3% each and flushing in 2%. […] In some patients, VT may be associated with mild or atypical symptoms. The severity of cerebral symptoms is at least partially related to the VT rate and a patient’s underlying heart disease.

• #12 Content – Health Encyclopedia – University of Rochester Medical Center

  https://www.urmc.rochester.edu/encyclopedia/content?ContentTypeID=134&ContentID=231

  Ventricular tachycardia (VT) is a fast, abnormal heart rhythm (arrhythmia). It starts in your hearts lower chambers. These are called ventricles. It’s defined as three or more heartbeats in a row, at a rate of more than 100 beats a minute. VT can be deadly if it lasts for more than a few seconds at a time. Sustained VT is when it lasts for more than 30 seconds. It can also be linked to a blood flow issue, such as abnormal blood pressure. Nonsustained VT lasts less than 30 seconds. […] VT symptoms include: Fast heartbeat, or a fluttering feeling in the chest (palpitations). Dizziness. Lightheadedness. Chest pain. Neck tightness. Shortness of breath. Fainting. Cardiac arrest. In some cases, there are no symptoms at all. […] Some people may have mild symptoms from VT. Or they may have no symptoms at all. But for others, VT can be dangerous. It can lead to fainting, sudden cardiac arrest, or death.

• #13 Ventricular Tachycardia: Causes, Symptoms, and Diagnosis

  https://www.healthline.com/health/ventricular-tachycardia

  Ventricular tachycardia may not cause symptoms, but when symptoms do occur, they may include lightheadedness, dizziness, and fainting. […] Symptoms of ventricular tachycardia may include: dizziness, fainting, fatigue, chest pain, shortness of breath. […] Those who experience ventricular tachycardia for 30 seconds or longer may experience a drop in blood pressure or unstable blood pressure. This may mean that not enough blood is being delivered to the organs. This may be fatal. […] Ventricular tachycardia may cause severe complications, especially the longer it lasts. […] The outlook for people with ventricular tachycardia is usually good if treatment is received quickly. When the disorder goes untreated, however, people are at a greater risk for sudden cardiac arrest and other serious conditions. […] Ventricular tachycardia is a serious condition where the heart beats with a very fast rhythm. If this rapid heartbeat is sustained longer than 30 seconds, it can mean that the heart cannot pump enough blood to the body. This can lead to sudden cardiac death.

• #14 Tachycardia: Fast Heart Rate | American Heart Association

  https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/tachycardia–fast-heart-rate

  Ventricular tachycardia (VT) is a fast heart rate that starts in the heart’s lower chambers (ventricles). Electrical signals in the heart’s lower chambers fire abnormally fast. This interferes with electrical impulses coming from the sinus node, the heart’s natural pacemaker. […] The disruption results in a faster-than-normal heart rate. This rapid heartbeat keeps the heart’s chambers from filling completely between contractions, which reduce blood flow to the rest of the body. […] VT may be either well-tolerated or life-threatening, requiring immediate diagnosis and treatment. The severity of VT depends largely on whether you have other heart conditions and the type of VT you have. […] Symptoms for VT vary. Common symptoms include: dizziness, palpitations, shortness of breath, nausea, lightheadedness, fainting (syncope), cardiac arrest, in extreme cases, chest pain.

• #15 Ventricular Tachycardia: Causes, Symptoms, and Diagnosis

  https://www.healthline.com/health/ventricular-tachycardia

  Ventricular tachycardia may not cause symptoms, but when symptoms do occur, they may include lightheadedness, dizziness, and fainting. […] Symptoms of ventricular tachycardia may include: dizziness, fainting, fatigue, chest pain, shortness of breath. […] Those who experience ventricular tachycardia for 30 seconds or longer may experience a drop in blood pressure or unstable blood pressure. This may mean that not enough blood is being delivered to the organs. This may be fatal. […] Ventricular tachycardia may cause severe complications, especially the longer it lasts. […] The outlook for people with ventricular tachycardia is usually good if treatment is received quickly. When the disorder goes untreated, however, people are at a greater risk for sudden cardiac arrest and other serious conditions. […] Ventricular tachycardia is a serious condition where the heart beats with a very fast rhythm. If this rapid heartbeat is sustained longer than 30 seconds, it can mean that the heart cannot pump enough blood to the body. This can lead to sudden cardiac death.

• #16 Ventricular Tachycardia: Symptoms, Causes, Diagnosis, Treatment

  https://www.webmd.com/heart-disease/atrial-fibrillation/what-is-ventricular-tachycardia

  Ventricular tachycardia can cause: […] You may not notice any symptoms, especially if your heart beats fast for only a few seconds, but ventricular tachycardia can cause: […] Ventricular tachycardia may cause a sudden drop in blood pressure, which means your tissue and organs cant get enough oxygen. You might pass out when this happens, but your heart may stop. This is called sudden cardiac arrest, and can be fatal. […] Its important to seek treatment if you have an irregular fast heartbeat. While ventricular tachycardia may not always be dangerous, it can cause serious problems if it happens often or for longer than 30 seconds. […] If your heart cant get blood flow to the rest of your body, you may: […] Ventricular tachycardia is a type of arrhythmia that causes your heart to beat faster than normal. Episodes that last longer than 30 seconds can be deadly. […] It can be harmless if it only lasts a few seconds. But V-tach can be life-threatening if you have an episode longer than 30 seconds and it leads to ventricular fibrillation, which prevents your heart from pumping blood to the rest of your body.

• #17 Ventricular Tachycardia – Heart and Blood Vessel Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/heart-and-blood-vessel-disorders/abnormal-heart-rhythms/ventricular-tachycardia

  Ventricular tachycardia is a heart rhythm that originates in the ventricles (lower chambers of the heart) and produces a heart rate of at least 120 beats per minute (the normal heart rate is usually between 60 and 100 beats per minute). […] People almost always have awareness of heartbeats (palpitations) and other symptoms of heart failure (for example, shortness of breath, chest discomfort, and/or fainting). […] People with ventricular tachycardia almost always have awareness of heart beats (palpitations). They may have weakness, light-headedness, and/or chest discomfort. […] Sustained ventricular tachycardia can be dangerous because the ventricles cannot fill adequately or pump blood normally. Blood pressure tends to fall, and heart failure follows. Sustained ventricular tachycardia is also dangerous because it can turn into ventricular fibrillationa form of cardiac arrest. Because of this, even though short periods of ventricular tachycardia may cause few symptoms, even at rates of up to 200 beats per minute, is still extremely dangerous. […] Ventricular tachycardia is treated when it causes symptoms or when episodes last more than 30 seconds even without causing symptoms. […] The long-term goal is to prevent sudden death, rather than simply stopping the abnormal rhythm.

• #18 Ventricular tachycardia | Great Ormond Street Hospital

  https://www.gosh.nhs.uk/conditions-and-treatments/conditions-we-treat/ventricular-tachycardia/

  If symptoms are present, they can include dizziness, palpitations, tiredness, shortness of breath, fainting (syncope) or almost fainting (pre-syncope), collapse. If you are having episodes of fainting or collapse you need to let your doctor know. Some people with VT do not notice symptoms. If you are experiencing symptoms in the red flags box you should seek immediate medical attention. […] In younger children and babies who are unable to say what they are feeling they may have symptoms such as reduced feeding, or breathlessness.

• #19 Ventricular Tachycardia | Conditions | UCSF Benioff Children’s Hospitals

  https://www.ucsfbenioffchildrens.org/conditions/ventricular-tachycardia

  Ventricular tachycardia (VT) may cause the following symptoms: […] Chest pressure or pain […] Fainting, also known as syncope, or near-syncope […] Fatigue […] Lightheadedness or dizziness […] Palpitations, which can be skipping, fluttering or pounding in the chest […] Shortness of breath. […] It is important to note that children may not know how to describe what they are feeling during a period of VT. They may have trouble keeping up with other children or realize they are having „spells” and want to sit down and rest. On occasion, a child may not experience any symptoms at all.

• #20 Ventricular Tachycardia (VT) | Frankel Cardiovascular Center | Michigan Medicine

  https://www.umcvc.org/conditions-treatments/ventricular-tachycardia-vt

  Ventricular tachycardia (VT) is a rapid heart rate that originates in the lower chambers of the heart, or ventricles, due to a malfunction of the heart’s electrical system. VT is defined by a pulse of more than 100 beats per minute with at least three irregular heartbeats in a row. The heart may beat inefficiently which can result in the body not receiving an adequate blood supply. […] VT can be harmless if it lasts only a few beats, but if it continues and is untreated, it can be life-threatening and cause sudden cardiac death. […] Symptoms of VT can include a feeling of a racing heart or that the heart is going to burst, lightheadedness and fatigue, chest pain and anxiety. […] VT can also occur without any symptoms. […] If you have a history of VT, you may not require any treatment. In other cases, you may need a device implanted to automatically stop the tachycardia, or rapid heart rate, when it starts. […] Treatments for VT are aimed at immediately restoring a normal heart rhythm and preventing future episodes.

• #21 Tachycardia – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/tachycardia/symptoms-causes/syc-20355127

  Ventricular tachycardia. This irregular heart rhythm starts in the lower heart chambers, called the ventricles. The fast heart rate doesn’t let the ventricles fill and squeeze to pump enough blood to the body. Episodes may be brief and last only a couple of seconds without causing harm. But episodes lasting more than a few seconds can be life-threatening. […] A type of tachycardia called ventricular fibrillation is an emergency that requires immediate medical attention. […] During ventricular fibrillation, blood pressure drops dramatically. The person’s breathing and pulse stop because the heart is not pumping any blood to the body. This also is called cardiac arrest. The person usually falls down, also called collapses. […] Sudden cardiac death. This is usually only associated with ventricular tachycardia or ventricular fibrillation.

• #22 Ventricular tachycardia: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/000187.htm

  Ventricular tachycardia (VT) is a rapid heartbeat that starts in the lower chambers of the heart (ventricles). […] VT is a pulse rate of more than 100 beats per minute, with at least 3 abnormal rapid heartbeats in a row. […] You may have symptoms if the heart rate during a VT episode is very fast or lasts longer than a few seconds. Symptoms may include: Chest discomfort (angina), Fainting (syncope), Lightheadedness or dizziness, Sensation of feeling the heart beat (palpitations), Shortness of breath. […] Symptoms may start and stop suddenly. In some cases, there are no symptoms. […] Ventricular tachycardia may not cause symptoms in some people. However, it can be deadly. It is a major cause of sudden cardiac death. […] Go to the emergency room or call 911 or the local emergency number if you have a rapid, irregular pulse, faint, or have chest pain. All of these may be signs of ventricular tachycardia.

• #23 Ventricular Tachycardia – Heart and Blood Vessel Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/heart-and-blood-vessel-disorders/abnormal-heart-rhythms/ventricular-tachycardia

  Ventricular tachycardia is a heart rhythm that originates in the ventricles (lower chambers of the heart) and produces a heart rate of at least 120 beats per minute (the normal heart rate is usually between 60 and 100 beats per minute). […] People almost always have awareness of heartbeats (palpitations) and other symptoms of heart failure (for example, shortness of breath, chest discomfort, and/or fainting). […] People with ventricular tachycardia almost always have awareness of heart beats (palpitations). They may have weakness, light-headedness, and/or chest discomfort. […] Sustained ventricular tachycardia can be dangerous because the ventricles cannot fill adequately or pump blood normally. Blood pressure tends to fall, and heart failure follows. Sustained ventricular tachycardia is also dangerous because it can turn into ventricular fibrillationa form of cardiac arrest. Because of this, even though short periods of ventricular tachycardia may cause few symptoms, even at rates of up to 200 beats per minute, is still extremely dangerous. […] Ventricular tachycardia is treated when it causes symptoms or when episodes last more than 30 seconds even without causing symptoms. […] The long-term goal is to prevent sudden death, rather than simply stopping the abnormal rhythm.

• #24 Tachycardia: Fast Heart Rate | American Heart Association

  https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/tachycardia–fast-heart-rate

  Ventricular tachycardia (VT) is a fast heart rate that starts in the heart’s lower chambers (ventricles). Electrical signals in the heart’s lower chambers fire abnormally fast. This interferes with electrical impulses coming from the sinus node, the heart’s natural pacemaker. […] The disruption results in a faster-than-normal heart rate. This rapid heartbeat keeps the heart’s chambers from filling completely between contractions, which reduce blood flow to the rest of the body. […] VT may be either well-tolerated or life-threatening, requiring immediate diagnosis and treatment. The severity of VT depends largely on whether you have other heart conditions and the type of VT you have. […] Symptoms for VT vary. Common symptoms include: dizziness, palpitations, shortness of breath, nausea, lightheadedness, fainting (syncope), cardiac arrest, in extreme cases, chest pain.

• #25 Ventricular Tachycardia: Causes, Symptoms, and Diagnosis

  https://www.healthline.com/health/ventricular-tachycardia

  Ventricular tachycardia may not cause symptoms, but when symptoms do occur, they may include lightheadedness, dizziness, and fainting. […] Symptoms of ventricular tachycardia may include: dizziness, fainting, fatigue, chest pain, shortness of breath. […] Those who experience ventricular tachycardia for 30 seconds or longer may experience a drop in blood pressure or unstable blood pressure. This may mean that not enough blood is being delivered to the organs. This may be fatal. […] Ventricular tachycardia may cause severe complications, especially the longer it lasts. […] The outlook for people with ventricular tachycardia is usually good if treatment is received quickly. When the disorder goes untreated, however, people are at a greater risk for sudden cardiac arrest and other serious conditions. […] Ventricular tachycardia is a serious condition where the heart beats with a very fast rhythm. If this rapid heartbeat is sustained longer than 30 seconds, it can mean that the heart cannot pump enough blood to the body. This can lead to sudden cardiac death.

• #26 Ventricular tachycardia – Wikipedia

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

  Ventricular tachycardia is a cardiovascular disorder in which fast heart rate occurs in the ventricles of the heart. […] Short periods may occur without symptoms, or present with lightheadedness, palpitations, shortness of breath, chest pain, and decreased level of consciousness. […] Ventricular tachycardia may turn into ventricular fibrillation and can result in cardiac arrest. […] While a few seconds may not result in problems, longer periods are dangerous. […] Ventricular tachycardia may lead to coma and persistent vegetative state due to lack of blood and oxygen to the brain. […] This conversion of the VT into VF is called the degeneration of the VT. […] It is found initially in about 7% of people in cardiac arrest.

• #27 Ventricular Tachycardia (VT) – Cardiovascular Disorders – MSD Manual Professional Edition

  https://www.msdmanuals.com/professional/cardiovascular-disorders/specific-cardiac-arrhythmias/ventricular-tachycardia-vt

  Ventricular tachycardia is 3 consecutive ventricular beats at a rate 120 beats/minute. Symptoms depend on duration and vary from none to palpitations to hemodynamic collapse and death. […] Sustained VT is almost always symptomatic, causing palpitations, symptoms of hemodynamic compromise, or sudden cardiac death. […] VT frequently deteriorates to ventricular fibrillation and thus cardiac arrest.

• #28 Ventricular Tachycardia: Symptoms, Causes, Diagnosis, Treatment

  https://www.webmd.com/heart-disease/atrial-fibrillation/what-is-ventricular-tachycardia

  Ventricular tachycardia can cause: […] You may not notice any symptoms, especially if your heart beats fast for only a few seconds, but ventricular tachycardia can cause: […] Ventricular tachycardia may cause a sudden drop in blood pressure, which means your tissue and organs cant get enough oxygen. You might pass out when this happens, but your heart may stop. This is called sudden cardiac arrest, and can be fatal. […] Its important to seek treatment if you have an irregular fast heartbeat. While ventricular tachycardia may not always be dangerous, it can cause serious problems if it happens often or for longer than 30 seconds. […] If your heart cant get blood flow to the rest of your body, you may: […] Ventricular tachycardia is a type of arrhythmia that causes your heart to beat faster than normal. Episodes that last longer than 30 seconds can be deadly. […] It can be harmless if it only lasts a few seconds. But V-tach can be life-threatening if you have an episode longer than 30 seconds and it leads to ventricular fibrillation, which prevents your heart from pumping blood to the rest of your body.

• #29 Clinical Symptoms in Patients With Sustained Ventricular Tachycardia

  https://pmc.ncbi.nlm.nih.gov/articles/PMC1306023/

  We questioned 113 patients with subsequently diagnosed sustained ventricular tachycardia (VT) regarding the symptoms that prompted their seeking hospital treatment, eliciting the following: 15% of patients had lost consciousness, 15% had near syncope, 35% had mild lightheadedness and 35% had no cerebral symptoms. […] Other symptoms included palpitations in 57% of patients, chest pain in 27%, dyspnea in 25%, weakness in 6%, nausea or diaphoresis in 3% each and flushing in 2%. […] In some patients, VT may be associated with mild or atypical symptoms. The severity of cerebral symptoms is at least partially related to the VT rate and a patient’s underlying heart disease.

• #30 Polymorphic Ventricular Tachycardia: Symptoms, Causes, and Treatments

  https://www.healthline.com/health/polymorphic-ventricular-tachycardia

  Polymorphic ventricular tachycardia is an abnormal heart rhythm where the bottom chambers of your heart beat too quickly. People with severe cases may experience sudden cardiac arrest. […] People with a minor case of polymorphic ventricular tachycardia might only experience it for a few seconds without it causing noticeable symptoms. However, longer episodes can be life threatening. […] Signs and symptoms of sustained ventricular tachycardia may include a noticeably fast heart rate, dizziness, heart palpitations, lightheadedness, and shortness of breath. […] Emergency medical attention is essential if you develop any of these symptoms. Without proper management, sustained ventricular tachycardia can lead to complications like fainting, a loss of consciousness, and cardiac arrest. […] The outlook for people with ventricular tachycardia largely depends on the underlying cause. In general, people with underlying heart disease have a more conservative outlook than people with no underlying heart condition.

• #31 Ventricular Tachycardia (VT) | Cardiology | Mercy Health

  https://www.mercy.com/health-care-services/heart-vascular/conditions/ventricular-tachycardia

  Ventricular tachycardia, also known as VT, is an abnormal heart rhythm that originates in the hearts ventricles (lower chambers). During a ventricular tachycardia episode, your body does not receive enough oxygenated blood to effectively supply the vital organs. […] The most common symptom of ventricular tachycardia is an abnormally fast heartbeat that lasts for a few seconds. […] The most common symptoms of ventricular tachycardia include: Heart palpitations (feeling as if your heart is racing). Dizziness. Shortness of breath. Lightheadedness. Chest pain. […] More severe ventricular tachycardia episodes may lead to fainting or cardiac arrest. […] Potential complications associated with ventricular tachycardia include: Heart failure. Frequent fainting spells or loss of consciousness. Sudden cardiac arrest. […] The severity of your complications associated with ventricular tachycardia varies based on how fast your heart is beating, how long the episode is, how frequently you experience episodes, and your overall health.

• #32 Causes, symptoms and treatment for ventricular tachycardia | Norton Healthcare

  https://nortonhealthcare.com/services-and-conditions/heart-and-vascular-care/services/ventricular-tachycardia/

  Left untreated, V-tach can lead to frequent fainting, heart failure or cardiac arrest. Patients with V-tach are usually at a higher risk of heart conditions, which can be fatal. Irregular heart rhythms like V-tach or ventricular fibrillation – if left untreated – can have a high risk of death of about 20% within two years.

• #33 Ventricular Tachycardia (VT) | Cardiology | Mercy Health

  https://www.mercy.com/health-care-services/heart-vascular/conditions/ventricular-tachycardia

  Ventricular tachycardia, also known as VT, is an abnormal heart rhythm that originates in the hearts ventricles (lower chambers). During a ventricular tachycardia episode, your body does not receive enough oxygenated blood to effectively supply the vital organs. […] The most common symptom of ventricular tachycardia is an abnormally fast heartbeat that lasts for a few seconds. […] The most common symptoms of ventricular tachycardia include: Heart palpitations (feeling as if your heart is racing). Dizziness. Shortness of breath. Lightheadedness. Chest pain. […] More severe ventricular tachycardia episodes may lead to fainting or cardiac arrest. […] Potential complications associated with ventricular tachycardia include: Heart failure. Frequent fainting spells or loss of consciousness. Sudden cardiac arrest. […] The severity of your complications associated with ventricular tachycardia varies based on how fast your heart is beating, how long the episode is, how frequently you experience episodes, and your overall health.

• #34 Understanding Ventricular Tachycardia: Causes, Symptoms, and Treatment

  https://avicennacardiology.com/manhattan/ventricular-tachycardia

  The most serious complication of VT is sudden cardiac death, often due to progression to ventricular fibrillation. Other complications include heart failure (called congestive heart failure), a condition where the weak heart muscle cannot pump blood effectively and an early or late complication of myocardial infarction. The prognosis depends on the underlying heart disease and the effectiveness of treatments for ventricular tachycardia.

• #35 Ventricular tachycardia – Wikipedia

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

  Ventricular tachycardia is a cardiovascular disorder in which fast heart rate occurs in the ventricles of the heart. […] Short periods may occur without symptoms, or present with lightheadedness, palpitations, shortness of breath, chest pain, and decreased level of consciousness. […] Ventricular tachycardia may turn into ventricular fibrillation and can result in cardiac arrest. […] While a few seconds may not result in problems, longer periods are dangerous. […] Ventricular tachycardia may lead to coma and persistent vegetative state due to lack of blood and oxygen to the brain. […] This conversion of the VT into VF is called the degeneration of the VT. […] It is found initially in about 7% of people in cardiac arrest.

• #36 Ventricular Tachycardia Causes, Symptoms, and Treatment

  https://www.verywellhealth.com/ventricular-tachycardia-1746259

  With ventricular tachycardia, the chambers of the lower heart will beat rapidly. […] With VT, people will commonly experience a heart rate between 150 to 200 bpm (compared to a normal heart rate of 60 to 100 bpm). […] Short episodes of VT are often asymptomatic (without symptoms), but episodes lasting longer than 30 seconds can lead to a steep drop in blood pressure (hypotension) as well as a cascade of other symptoms, including: Chest pain (angina), Heart palpitations and flutters, Dizziness or lightheadedness, Shortness of breath, Fainting (syncope). […] If these abnormal rhythms continue, a person may experience cardiac arrest in which the heart stops beating entirely, leading to sudden death. […] If VT is caused by long QT syndrome, the reduced flow of blood to the brain can also lead to non-epileptic seizures, which can easily be confused for epilepsy.

• #37 Ventricular Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK532954/

  Although the common symptoms of ventricular tachycardia include palpitations, shortness of breath, chest pain, and syncope, the patients may present with cardiac arrest or even sudden cardiac death. […] Patients with ventricular tachycardia due to channelopathies may have syncope, cardiac arrest, and sudden cardiac death as the first presentation; that is why it is essential to have a three-generation detailed family history while evaluating a young patient with ventricular tachycardia. […] The prognosis of VT depends on the underlying etiology and the presence of structural heart disease. As coronary artery disease is the main cause of VT, patients with ischemic cardiomyopathy-related VT have the worst prognosis. The two-year mortality in these patients has been reported to be as high as 30% if they remain untreated. However, the implantation of a defibrillator significantly reduces the incidence of sudden cardiac death and improves survival in these patients. […] Patients with idiopathic ventricular tachycardia have excellent prognoses in the absence of other co-morbid conditions, and they are estimated to have longevity almost equal to the general population.

• #38 Ventricular Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK532954/

  Although the common symptoms of ventricular tachycardia include palpitations, shortness of breath, chest pain, and syncope, the patients may present with cardiac arrest or even sudden cardiac death. […] Patients with ventricular tachycardia due to channelopathies may have syncope, cardiac arrest, and sudden cardiac death as the first presentation; that is why it is essential to have a three-generation detailed family history while evaluating a young patient with ventricular tachycardia. […] The prognosis of VT depends on the underlying etiology and the presence of structural heart disease. As coronary artery disease is the main cause of VT, patients with ischemic cardiomyopathy-related VT have the worst prognosis. The two-year mortality in these patients has been reported to be as high as 30% if they remain untreated. However, the implantation of a defibrillator significantly reduces the incidence of sudden cardiac death and improves survival in these patients. […] Patients with idiopathic ventricular tachycardia have excellent prognoses in the absence of other co-morbid conditions, and they are estimated to have longevity almost equal to the general population.

• #39 Polymorphic Ventricular Tachycardia: Symptoms, Causes, and Treatments

  https://www.healthline.com/health/polymorphic-ventricular-tachycardia

  Polymorphic ventricular tachycardia is an abnormal heart rhythm where the bottom chambers of your heart beat too quickly. People with severe cases may experience sudden cardiac arrest. […] People with a minor case of polymorphic ventricular tachycardia might only experience it for a few seconds without it causing noticeable symptoms. However, longer episodes can be life threatening. […] Signs and symptoms of sustained ventricular tachycardia may include a noticeably fast heart rate, dizziness, heart palpitations, lightheadedness, and shortness of breath. […] Emergency medical attention is essential if you develop any of these symptoms. Without proper management, sustained ventricular tachycardia can lead to complications like fainting, a loss of consciousness, and cardiac arrest. […] The outlook for people with ventricular tachycardia largely depends on the underlying cause. In general, people with underlying heart disease have a more conservative outlook than people with no underlying heart condition.

• #40 Ventricular Tachycardias: Symptoms and Treatment | Doctor

  https://patient.info/doctor/ventricular-tachycardias

  Ventricular tachycardia (VT) is a broad complex tachycardia originating from a ventricular ectopic focus. It is defined as three or more ventricular extrasystoles in succession at a rate of more than 120 beats per minute (bpm). […] Symptoms may include chest pain, palpitations, dyspnoea, dizziness, syncope and other symptoms of heart failure. […] Most patients present with symptoms of either coronary heart disease or haemodynamic compromise resulting from poor perfusion. […] If treated rapidly, VT generally has a favourable short-term outcome. Long-term prognosis depends upon the underlying cardiac disease.

• #41 Ventricular Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK532954/

  Although the common symptoms of ventricular tachycardia include palpitations, shortness of breath, chest pain, and syncope, the patients may present with cardiac arrest or even sudden cardiac death. […] Patients with ventricular tachycardia due to channelopathies may have syncope, cardiac arrest, and sudden cardiac death as the first presentation; that is why it is essential to have a three-generation detailed family history while evaluating a young patient with ventricular tachycardia. […] The prognosis of VT depends on the underlying etiology and the presence of structural heart disease. As coronary artery disease is the main cause of VT, patients with ischemic cardiomyopathy-related VT have the worst prognosis. The two-year mortality in these patients has been reported to be as high as 30% if they remain untreated. However, the implantation of a defibrillator significantly reduces the incidence of sudden cardiac death and improves survival in these patients. […] Patients with idiopathic ventricular tachycardia have excellent prognoses in the absence of other co-morbid conditions, and they are estimated to have longevity almost equal to the general population.

• #42 Ventricular Tachycardia: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/159075-overview

  VT can also result in sudden death, especially after degeneration to VF. Patients in whom this occurs may first present with syncope. […] Patients with VT may suffer heart failure and its attendant morbidity as a result of hemodynamic compromise. In patients with ischemic cardiomyopathy and nonsustained VT, sudden-death mortality approaches 30% in 2 years. In patients with idiopathic VT, the prognosis is excellent, with the major risk being injury incurred during syncopal spells.

• #43 Polymorphic Ventricular Tachycardia: Symptoms, Causes, and Treatments

  https://www.healthline.com/health/polymorphic-ventricular-tachycardia

  People with a rare inherited condition called catecholaminergic polymorphic ventricular tachycardia are at a high risk of cardiac arrest. Up to 30% of people with the condition develop cardiac arrest if left untreated. […] You must seek medical attention immediately if you develop symptoms, like unexplained dizziness or shortness of breath.

• #44 Non-sustained ventricular tachycardia: Symptoms and more

  https://www.medicalnewstoday.com/articles/non-sustained-ventricular-tachycardia

  Non-sustained ventricular tachycardia is an abnormally fast heart rate that occurs in the lower chambers of the heart and lasts for less than 30 seconds. […] Symptoms of NSVT may vary depending on age, other health conditions, and if a person has structural heart disease. Common symptoms include: heart palpitations, shortness of breath, chest pain, fainting, feeling dizzy or light-headed, nausea. […] In severe cases, NSVT may lead to cardiac arrest or sudden cardiac death. […] If people have no other heart problems, NSVT may be a benign condition. If people have structural heart disease, NSVT can be more serious and may result in severe complications and increase the risk of sudden cardiac death. […] NSVT can be life threatening as it may cause cardiac arrest or sudden cardiac death.

• #45 Ventricular Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK532954/

  Although the common symptoms of ventricular tachycardia include palpitations, shortness of breath, chest pain, and syncope, the patients may present with cardiac arrest or even sudden cardiac death. […] Patients with ventricular tachycardia due to channelopathies may have syncope, cardiac arrest, and sudden cardiac death as the first presentation; that is why it is essential to have a three-generation detailed family history while evaluating a young patient with ventricular tachycardia. […] The prognosis of VT depends on the underlying etiology and the presence of structural heart disease. As coronary artery disease is the main cause of VT, patients with ischemic cardiomyopathy-related VT have the worst prognosis. The two-year mortality in these patients has been reported to be as high as 30% if they remain untreated. However, the implantation of a defibrillator significantly reduces the incidence of sudden cardiac death and improves survival in these patients. […] Patients with idiopathic ventricular tachycardia have excellent prognoses in the absence of other co-morbid conditions, and they are estimated to have longevity almost equal to the general population.

• #46 Ventricular Tachycardia – Causes, Symptoms & Treatment

  https://ckbirlahospitals.com/bmb/blog/how-to-cope-with-ventricular-tachycardia

  The long-term outlook for people with ventricular tachycardia is usually promising if treatment is received in time. It is important to be aware of the symptoms and get timely treatment before the condition becomes worse. Since most ventricular tachycardia symptoms go undetected, regular health checkups must be encouraged to keep a check on your heart health.

• #47 Ventricular Tachycardia: Causes, Symptoms, and Diagnosis

  https://www.healthline.com/health/ventricular-tachycardia

  Ventricular tachycardia may not cause symptoms, but when symptoms do occur, they may include lightheadedness, dizziness, and fainting. […] Symptoms of ventricular tachycardia may include: dizziness, fainting, fatigue, chest pain, shortness of breath. […] Those who experience ventricular tachycardia for 30 seconds or longer may experience a drop in blood pressure or unstable blood pressure. This may mean that not enough blood is being delivered to the organs. This may be fatal. […] Ventricular tachycardia may cause severe complications, especially the longer it lasts. […] The outlook for people with ventricular tachycardia is usually good if treatment is received quickly. When the disorder goes untreated, however, people are at a greater risk for sudden cardiac arrest and other serious conditions. […] Ventricular tachycardia is a serious condition where the heart beats with a very fast rhythm. If this rapid heartbeat is sustained longer than 30 seconds, it can mean that the heart cannot pump enough blood to the body. This can lead to sudden cardiac death.

• #48 Ventricular Tachycardia: Causes, Symptoms, and Diagnosis

  https://www.healthline.com/health/ventricular-tachycardia

  Ventricular tachycardia may not cause symptoms, but when symptoms do occur, they may include lightheadedness, dizziness, and fainting. […] Symptoms of ventricular tachycardia may include: dizziness, fainting, fatigue, chest pain, shortness of breath. […] Those who experience ventricular tachycardia for 30 seconds or longer may experience a drop in blood pressure or unstable blood pressure. This may mean that not enough blood is being delivered to the organs. This may be fatal. […] Ventricular tachycardia may cause severe complications, especially the longer it lasts. […] The outlook for people with ventricular tachycardia is usually good if treatment is received quickly. When the disorder goes untreated, however, people are at a greater risk for sudden cardiac arrest and other serious conditions. […] Ventricular tachycardia is a serious condition where the heart beats with a very fast rhythm. If this rapid heartbeat is sustained longer than 30 seconds, it can mean that the heart cannot pump enough blood to the body. This can lead to sudden cardiac death.

• #49 Ventricular Tachycardia – Causes, Symptoms & Treatment

  https://ckbirlahospitals.com/bmb/blog/how-to-cope-with-ventricular-tachycardia

  The long-term outlook for people with ventricular tachycardia is usually promising if treatment is received in time. It is important to be aware of the symptoms and get timely treatment before the condition becomes worse. Since most ventricular tachycardia symptoms go undetected, regular health checkups must be encouraged to keep a check on your heart health.

• #50 Ventricular Tachycardia: Symptoms, Causes, and Management

  https://longmoreclinic.org/ventricular-tachycardia-symptoms-causes-and-management/

  If you experience symptoms of VT, such as palpitations, dizziness, or fainting, seek medical attention immediately. Even if your symptoms are brief, consult a healthcare professional to evaluate your heart health. […] In conclusion, Ventricular tachycardia is a fast, abnormal heart rhythm that can be life-threatening if sustained. Understanding the causes, symptoms, and risk factors is essential for managing and preventing VT. Consult a healthcare professional if you experience symptoms or have concerns about your heart health.

• #51 Polymorphic Ventricular Tachycardia: Symptoms, Causes, and Treatments

  https://www.healthline.com/health/polymorphic-ventricular-tachycardia

  People with a rare inherited condition called catecholaminergic polymorphic ventricular tachycardia are at a high risk of cardiac arrest. Up to 30% of people with the condition develop cardiac arrest if left untreated. […] You must seek medical attention immediately if you develop symptoms, like unexplained dizziness or shortness of breath.

• #52 Ventricular tachycardia: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/000187.htm

  Ventricular tachycardia (VT) is a rapid heartbeat that starts in the lower chambers of the heart (ventricles). […] VT is a pulse rate of more than 100 beats per minute, with at least 3 abnormal rapid heartbeats in a row. […] You may have symptoms if the heart rate during a VT episode is very fast or lasts longer than a few seconds. Symptoms may include: Chest discomfort (angina), Fainting (syncope), Lightheadedness or dizziness, Sensation of feeling the heart beat (palpitations), Shortness of breath. […] Symptoms may start and stop suddenly. In some cases, there are no symptoms. […] Ventricular tachycardia may not cause symptoms in some people. However, it can be deadly. It is a major cause of sudden cardiac death. […] Go to the emergency room or call 911 or the local emergency number if you have a rapid, irregular pulse, faint, or have chest pain. All of these may be signs of ventricular tachycardia.

• #53 Ventricular Tachycardia: Symptoms, Causes, and Management

  https://longmoreclinic.org/ventricular-tachycardia-symptoms-causes-and-management/

  If you experience symptoms of VT, such as palpitations, dizziness, or fainting, seek medical attention immediately. Even if your symptoms are brief, consult a healthcare professional to evaluate your heart health. […] In conclusion, Ventricular tachycardia is a fast, abnormal heart rhythm that can be life-threatening if sustained. Understanding the causes, symptoms, and risk factors is essential for managing and preventing VT. Consult a healthcare professional if you experience symptoms or have concerns about your heart health.

• #54 Ventricular Tachycardia – Causes, Symptoms & Treatment

  https://ckbirlahospitals.com/bmb/blog/how-to-cope-with-ventricular-tachycardia

  The long-term outlook for people with ventricular tachycardia is usually promising if treatment is received in time. It is important to be aware of the symptoms and get timely treatment before the condition becomes worse. Since most ventricular tachycardia symptoms go undetected, regular health checkups must be encouraged to keep a check on your heart health.

• #55 Ventricular Tachycardia (V-tach): Symptoms & Causes | NewYork-Presbyterian

  https://www.nyp.org/heart/arrhythmias/ventricular-tachycardia-v-tach

  Ventricular tachycardia (VT or V-tach) is a fast, irregular heart rhythm caused by abnormal electrical signals in the ventricles, the heart’s lower chambers. The rapid heartbeat may prevent the ventricles from filling up with blood, making it difficult to pump enough blood to the body. […] V-tach episodes may be brief and not need any treatment, but sustained V-tach episodes that last longer than 30 seconds can be life-threatening and need immediate treatment. In some cases, this arrhythmia may cause dizziness, shortness of breath, loss of consciousness, or death. […] Signs and symptoms of ventricular tachycardia may include: Chest discomfort, Dizziness, Palpitations, pounding heartbeat, Lightheadedness, Shortness of breath, Loss of consciousness, Fainting, Cardiac arrest.

• #56 Ventricular Tachycardia: Symptoms, Causes, Diagnosis, Treatment

  https://www.webmd.com/heart-disease/atrial-fibrillation/what-is-ventricular-tachycardia

  Ventricular tachycardia can cause: […] You may not notice any symptoms, especially if your heart beats fast for only a few seconds, but ventricular tachycardia can cause: […] Ventricular tachycardia may cause a sudden drop in blood pressure, which means your tissue and organs cant get enough oxygen. You might pass out when this happens, but your heart may stop. This is called sudden cardiac arrest, and can be fatal. […] Its important to seek treatment if you have an irregular fast heartbeat. While ventricular tachycardia may not always be dangerous, it can cause serious problems if it happens often or for longer than 30 seconds. […] If your heart cant get blood flow to the rest of your body, you may: […] Ventricular tachycardia is a type of arrhythmia that causes your heart to beat faster than normal. Episodes that last longer than 30 seconds can be deadly. […] It can be harmless if it only lasts a few seconds. But V-tach can be life-threatening if you have an episode longer than 30 seconds and it leads to ventricular fibrillation, which prevents your heart from pumping blood to the rest of your body.

• #57 Ventricular tachycardia | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/ventricular-tachycardia?content_id=CON-20214608

  Ventricular tachycardia can be a medical emergency even if your symptoms are minor. […] Symptoms of sustained V-tach may include: Fainting. Loss of consciousness. Cardiac arrest or sudden death. […] Ventricular tachycardia that lasts longer than 30 seconds, called sustained V-tach, needs emergency medical treatment. Sustained V-tach may sometimes lead to sudden cardiac death.

• #58 Ventricular tachycardia | Health Library | Memorial Health System

  https://www.mhsystem.org/health-library/con-20214608/

  This rapid heart rate can be a medical emergency. Know the warning symptoms and how its treated. […] Symptoms of ventricular tachycardia are due to a lack of oxygen. They may include: Chest pain, called angina. Dizziness. Pounding heartbeat, called palpitations. Lightheadedness. Shortness of breath. […] Ventricular tachycardia can be a medical emergency even if your symptoms are minor. […] Symptoms of sustained V-tach may include: Fainting. Loss of consciousness. Cardiac arrest or sudden death. […] Ventricular tachycardia that lasts longer than 30 seconds, called sustained V-tach, needs emergency medical treatment. Sustained V-tach may sometimes lead to sudden cardiac death.

• #59 Tachycardia | healthdirect

  https://www.healthdirect.gov.au/tachycardia

  If you have ventricular tachycardia and are very unwell, your doctors may need to shock your heart into the correct rhythm with a defibrillator. If you are at risk of this happening again, your doctor may recommend having an implantable cardioverter defibrillator (ICD) implanted. This device can automatically deliver a small shock to your heart when you need it to normalise your heart rhythm.

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