Materiały źródłowe

• #1 Atrioventricular Nodal Reentrant Tachycardia (AVNRT)

  https://my.clevelandclinic.org/health/diseases/22923-avnrt

  Atrioventricular nodal reentrant tachycardia (AVNRT) is a type of arrhythmia. A person with AVNRT experiences sudden episodes of an abnormally fast heartbeat. […] A person with AVNRT experiences sudden episodes of an abnormally fast heartbeat, often 140 to 280 beats per minute. […] AVNRT happens in episodes, meaning the rapid heartbeat comes and goes. A person with the condition can have symptoms for years before getting a diagnosis. […] Common signs include: Discomfort in the neck or chest. Dizziness. Fast heartbeat (140 to 280 beats per minute). Palpitations. Polyuria, excessive amounts of urine (pee). Shortness of breath. […] In rare, severe cases, AVNRT can cause more serious symptoms and complications such as: Chest pain. Confusion. Fainting (syncope). Low blood pressure (hypotension). Shock. […] In rare instances, AVNRT can result in serious complications, such as sudden cardiac arrest. But it is not life-threatening for the vast majority of people.

• #1 Atrioventricular nodal reentry tachycardia (AVNRT) | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/atrioventricular-nodal-reentry-tachycardia-avnrt?content_id=CON-20239502

  Atrioventricular nodal reentry tachycardia (AVNRT) is a type of irregular heartbeat, also called an arrhythmia. It is the most common type of supraventricular tachycardia (SVT). […] People with AVNRT have a very fast heartbeat that often starts and ends suddenly. In AVNRT, the heart can beat between 120 to 280 times a minute. The fast heartbeat usually starts suddenly. […] AVNRT does not always cause symptoms. When symptoms do show up, they may include: A pounding feeling in the neck. Pounding or fluttering heartbeat, called palpitations. Chest pressure, tightness or pain. Dizziness or lightheadedness. Shortness of breath. Sweating. Weakness or extreme tiredness. Fainting or almost fainting. […] Symptoms of AVNRT may be mild in children. Some symptoms include sweating, trouble feeding, changes in skin color and a fast heartbeat.

• #1 About Atrioventricular Nodal Reentrant Tachycardia (AVNRT)

  https://www.verywellhealth.com/atrioventricular-nodal-reentrant-tachycardia-avnrt-1746235

  One symptom that is often seen in AVNRT, but that occurs less frequently with other kinds of SVT, is a sensation of pounding in the neck. During episodes of AVNRT, the atria and ventricle chambers of the heart are beating at the same time. […] While AVNRT is typically not life-threatening, it can cause symptoms that require treatment. It also can occur with another health condition that needs to be treated, such as heart failure.

• #1 AV Nodal Reentrant Tachycardia (AVNRT)

  http://www.washingtonhra.com/arrhythmias/av-nodal-reentrant-tachycardia-avnrt.php

  The symptoms of AVNRT are similar to other SVT, with palpitation, lightheadedness, dizziness, shortness of breath, reduced exercise capacity, weakness, fatigue, chest discomfort, and sweating episodes. These symptoms are primarily due to loss of atrioventricular synchrony (when then atria and ventricles no longer contract in a tightly-coupled progression) or the development of rapid and/or irregular ventricular rates. […] AV nodal reentry tachycardia, as an isolated rhythm disturbance, is not considered a life-threatening condition. Some patients are able to reduce their symptomatic episodes with life-style modification, including avoidance of caffeinated beverages, alcohol, sleep-deprivation, stressful situations, and anxiety. The frequency or severity of symptoms may fluctuate from time-to-time, but they rarely disappear. Because the arrhythmia is due to an abnormal electrical circuit in the heart, there is little any patient can do by himself or herself to prevent or suppress the arrhythmia completely.

• #1 AV nodal reentrant tachycardia – Wikipedia

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

  AVNRT occurs when a reentrant circuit forms within or just next to the atrioventricular node. […] The main symptom of AVNRT is the sudden development of rapid regular palpitations. […] The rapid heart rate may lead to feelings of anxiety, and may therefore be mistaken for panic attacks. […] In some cases, the onset of the fast heart is associated with a brief drop in blood pressure. […] Symptoms often occur without any specific trigger, although some find that their palpitations often occur after lifting heavy items or bending forwards. […] The onset of palpitations is sudden, with the acceleration of the heart rate occurring within a single beat, and may be preceded by a feeling of the heart skipping a beat. […] During AVNRT the heart rate is typically between 140 and 280 beats per minute.

• #1 Atrioventricular nodal reentry tachycardia (AVNRT) – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/avnrt/symptoms-causes/syc-20573830

  Atrioventricular nodal reentry tachycardia (AVNRT) is a type of irregular heartbeat, also called an arrhythmia. It is the most common type of supraventricular tachycardia (SVT). […] People with AVNRT have a very fast heartbeat that often starts and ends suddenly. In AVNRT, the heart beats more than 100 times a minute. The condition is due to a change in heart signaling. […] A very fast heartbeat is the most common symptom of atrioventricular nodal reentry tachycardia (AVNRT). In AVNRT, the heart can beat between 120 to 280 times a minute. The fast heartbeat usually starts suddenly. […] AVNRT does not always cause symptoms. When symptoms do show up, they may include: A pounding feeling in the neck. Pounding or fluttering heartbeat, called palpitations. Chest pressure, tightness or pain. Dizziness or lightheadedness. Shortness of breath. Sweating. Weakness or extreme tiredness. Fainting or almost fainting. […] Symptoms of AVNRT may be mild in children. Some symptoms include sweating, trouble feeding, changes in skin color and a fast heartbeat.

• #1 Atrioventricular nodal reentry tachycardia (AVNRT) – Overview – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/avnrt/cdc-20355254

  Atrioventricular nodal reentry tachycardia (AVNRT) is a type of irregular heartbeat, also called an arrhythmia. It is the most common type of supraventricular tachycardia. […] People with AVNRT have an irregularly fast heartbeat that often starts and ends suddenly. In AVNRT, the heart beats more than 100 times a minute. The condition is due to a change in heart signaling. There is an extra pathway for heart signals to travel, called a reentrant circuit. That extra pathway causes the heart to beat too early. […] AVNRT tends to occur more often in young women. But anyone can have it at any age. AVNRT may not need treatment. When recommended, treatment may include specific actions or movements, medicines, or a heart procedure. […] Most people with atrioventricular nodal reentry tachycardia (AVNRT) don’t need treatment. But if the fast heartbeat occurs often or lasts a long time, treatment may be needed.

• #1 Atrioventricular Nodal Reentry Tachycardia Clinical Presentation: History, Physical Examination

  https://emedicine.medscape.com/article/160215-clinical

  Atrioventricular nodal reentry tachycardia (AVNRT) is typically characterized by an abrupt onset and termination. Episodes may last from seconds to minutes to days. In the absence of structural heart disease, it is usually well tolerated. […] Common symptoms include the following: Palpitations, Nervousness, Anxiety, Lightheadedness, Neck pounding, Neck and chest discomfort, Dyspnea, Polyuria – Can occur after termination of an episode (due to the release of atrial natriuretic factor). […] AVNRT may cause angina or myocardial infarction in patients with coronary artery disease and may cause or worsen heart failure in patients with poor left ventricular function. […] Syncope may occur in patients with a rapid ventricular rate or prolonged tachycardia due to poor ventricular filling, decreased cardiac output, hypotension, and reduced cerebral perfusion. Syncope may also occur because of transient asystole when the tachycardia terminates, due to tachycardia-induced depression of the sinus node.

• #1 Atrioventricular nodal reentry tachycardia (AVNRT) – Treatment abroad

  https://www.gsdinternational.com/conditions/atrioventricular-nodal-reentry-tachycardia-avnrt

  Patients with this type of tachycardia complain of palpitations of varying duration and frequency. […] Episodes of tachycardia have onset and resolution. These attacks feature fast and very regular heartbeats, like a „sewing machine”. […] Some patients notice that certain techniques can make the tachycardia disappear; the most typical is forced exhalation with the throat closed (Valsalva manoeuvre).

• #1 AVNRT: AV Nodal Reentrant Tachycardia – The Cardiology Advisor

  https://www.thecardiologyadvisor.com/ddi/avnrt-av-nodal-reentrant-tachycardia/

  AV nodal reentrant tachycardia tends to be paroxysmal. During episodes, the heart rate is generally in the 140 to 280 bpm range and the QRS complex is narrow (less than 120 milliseconds). […] All 3 primary types of AVNRT present with similar symptoms. The most visible symptoms of AVNRT include the following: Palpitations; Chest pain; Tiredness; Lightheadedness; Difficulty breathing; Dizziness; and Fainting. Symptoms may start and stop abruptly. Between episodes, patients may have no symptoms. […] Episodes of AVNRT can occur spontaneously or may be provoked by multiple factors, including intense exercise, high levels of physiologic stress, consumption of caffeine or alcohol, and use of certain medications, such as beta-antagonists and sympathomimetics. […] In women, AVNRT may develop or be exacerbated by pregnancy or phases of the menstrual cycle.

• #1 Atrioventricular Nodal Re-entrant Tachycardia – Hope For Hearts

  https://hopeforhearts.com.au/arrhythmias/atrioventricular-nodal-re-entrant-tachycardia/

  Atrioventricular nodal re-entrant tachycardia (AVNRT) is a common type of supraventricular tachycardia (SVT). […] Most patients with AVNRT present with symptoms such as: Dizziness / presyncope, Palpitations, Shortness of breath, Anxiety related palpitations, Fluttering feeling in the throat and/or neck, Potential chest discomfort, Heart rates between 140 250 beats per minute, Hypotension (low blood pressure) due to rapid heart rates. […] Symptoms may also be exacerbated by caffeine, tobacco, alcohol intake and can follow after exercise or due to significant emotional stressors that can precipitate an AVNRT episode.

• #1 AV nodal reentrant tachycardia: Diagnosis and Treatment – Dermatology Advisor

  https://www.dermatologyadvisor.com/home/decision-support-in-medicine/cardiology/av-nodal-reentrant-tachycardia-diagnosis-and-treatment/

  The hallmark clinical features of AVNRT in decreasing order of prevalence are: palpitations, dizziness, dyspnea, chest pain or fullness, fatigue, and rarely presyncope or syncope. Patients with AVNRT often describe a fullness in their neck or throat as well, and this may be a reflection of the near simultaneous activation of the ventricle and the atrium. […] Following termination of the arrhythmia, most patients are quickly relieved of symptoms but there is a subset of patients that are physically exhausted for hours to days. […] AVNRT occurs more commonly in females. There is a 2:1 gender bias. Familial predispositions have also been described. The triggers for typical AVNRT are usually premature atrial contractions and occasionally premature ventricular contractions. […] Anything that increases the frequency of PACs, including aging, alcohol, tobacco products, adrenergic stimulating medications, hyperthyroidism, pregnancy, illness, emotional stress, and/or illicit drugs, can increase the frequency of AVNRT.

• #1 Atrioventricular Nodal Reentry Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/sites/books/NBK499936/

  Atrioventricular nodal reentrant tachycardia (AVNRT) is a type of paroxysmal supraventricular tachycardia that results due to the presence of a reentry circuit within or adjacent to the AV node. The diagnosis of AVNRT requires visualization of an electrocardiogram (ECG). In most cases, an ECG will show heart rate between 140 and 280 beats per minute (bpm), and in the absence of aberrant conduction, a QRS complex of fewer than 120 milliseconds. […] Patients with atrioventricular nodal reentrant tachycardia usually present with symptoms of dizziness, syncope, shortness of breath, intermittent palpitations, pain/discomfort in the neck, pain/discomfort in the chest, anxiety, and polyuria secondary atrial natriuretic factor secreted mainly by the heart atria in response to atrial stretch. […] Although syncope is an uncommon symptom in patients with AVNRT, it is typical in patients who have a heart rate above 170 bpm as less filling of the ventricles leads to the reduction in cardiac output and the decreased perfusion of the brain.

• #1 Atrioventricular Nodal Reentry Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/sites/books/NBK499936/

  Patients with AVNRT usually present with a heart rate within the range of 140 to 280 bpm. If a patient has known heart failure or coronary artery disease, they may complain of chest pain. […] Hemodynamically unstable patients present with tachycardia associated with hypotension, ischemic chest pain, altered mental status, respiratory failure, or shock. […] Prognosis is generally good when a healthcare provider promptly identifies the rhythm. […] If not identified promptly, symptomatic complications such as syncope, fatigue, or dizziness can occur.

• #1 Atrioventricular nodal reentry tachycardia (AVNRT)

  https://www.mymlc.com/health-information/diseases-and-conditions/a/atrioventricular-nodal-reentry-tachycardia-avnrt/

  Supraventricular tachycardia may come and go suddenly, with stretches of normal heart rates in between. Symptoms may last anywhere from a few minutes to a few days, and some people have no symptoms at all. […] Supraventricular tachycardia becomes a problem when it occurs frequently and is ongoing, particularly if you have heart damage or other coexisting medical problems. […] Signs and symptoms of supraventricular tachycardia may include: A fluttering in your chest, Rapid heartbeat (palpitations), Shortness of breath, Lightheadedness or dizziness, Sweating, A pounding sensation in the neck, Fainting (syncope) or near fainting. […] In extreme cases, an episode of SVT may cause you to pass out. […] Over time, untreated and frequent episodes of supraventricular tachycardia may weaken the heart and lead to heart failure, particularly if you have other coexisting medical conditions.

• #1 European Journal of Translational and Clinical Medicine

  https://ejtcm.gumed.edu.pl/articles/115072

  Atrioventricular nodal reentry tachycardia (AVNRT) is the most common paroxysmal supraventricular tachycardia. […] The overall 97.3% of effectiveness of RFCA was observed. […] Younger age of women in comparison to men during RFCA of AVNRT reflects earlier onset of symptoms in women. […] The higher rate of inducible tachycardia after RFCA in women may suggest the existence of anatomical difficulties or the operators apprehensions. […] According to the literature, women experience more symptoms than men, but they have longer time of delay before ablation. […] In our study, women undergoing RFCA were younger than men, what can be explained by the earlier onset of symptoms in women. […] This association was documented by Deneke et al. with onset of symptomatic AVNRT at age of 38 +/- 18 in women vs. 51 +/- 18 years in men (p = 0.01). […] The duration of fluoroscopy did not differ between sexes, but there was a difference in radiation exposure between men and women. […] Sex-related difference in radiation dose that we have observed may result from the greater volume of the men’s chest.

• #1 Atrioventricular Nodal Reentrant Tachycardia

  https://mydoctor.kaiserpermanente.org/mas/structured-content/Condition_AV_Nodal_Reentrant_Tachycardia_-_Cardio_EP.xml?co=/regions/mas

  Atrioventricular nodal reentrant tachycardia (AVNRT) is a disorder of the heart’s electrical system that causes sudden, very rapid heart rate. […] AVNRT symptoms usually occur when people are in their 20s. Symptoms can reoccur in their 40s to 50s (during perimenopause). Some people have no symptoms until their 70s or 80s. […] Symptoms can include: Heart palpitations, Chest pain or discomfort, Dizziness, light-headedness, or fainting, Anxiety, Pulsation sensations in the neck, Shortness of breath. […] AVNRT can also: Cause angina (chest pain) or heart attack, if you have coronary artery disease. Make heart failure worse, if your left ventricle doesn’t work properly when pumping blood to the body.

• #1 AV nodal reentrant tachycardia (AVNRT) – Paces

  https://www.pacesep.org/patient-resources/avnrt/

  AV-nodal reentrant tachycardia (AVNRT) is a type of SVT that begins in the upper chambers of the heart (Atria) and travels through an abnormal electrical circuit within the AV node. […] General characteristics of AVNRT include: Abnormal fast heart: rate can be has high as 220-320 bpm in younger children. […] Although AVNRT is not usually dangerous, if left untreated it can affect the hearts ability to pump normally. […] Signs and symptoms of AVNRT include: Palpitations- the feeling of a rapid or erratic heart beat while sitting quietly or at rest or faster than normal heart rate with exercise, Dizziness, Fainting (syncope), Chest pain, Shortness of breath, Heart pounding, Feeling pulsations in your throat, Sudden sense of a fast heart rate and a sudden end to the to the fast heart rate, Toddlers and younger (when verbal) children may describe symptoms as their „heart beeping”. […] Infants cannot communicate their symptoms but they may exhibit signs of: Poor feeding, Profuse sweating with feeding, Being Listless/lethargic, Appearing generally ill, Breathing faster than normal. […] These symptoms can be brief but can also last for several hours.

• #1 Atrioventricular Nodal Reentrant Tachycardia in Very Elderly Patients: A Single-center Experience

  https://www.innovationsincrm.com/cardiac-rhythm-management/articles-2020/february/1538-atrioventricular-nodal-reentrant-tachycardia

  We present a series of elderly patients older than 80 years who had recurrent palpitations for decades and who were subsequently diagnosed with atrioventricular (AV) nodal reentrant tachycardia (AVNRT). […] These patients had palpitations and had been treated for anxiety and panic attacks for decades. […] All 12 patients experienced palpitations and all but three had documented SVT on a loop recorder or an event monitor. […] The diagnosis of SVT and AVNRT, which is usually straightforward, can be elusive because episodes of the tachycardia may subside before the patient seeks medical help for the episode. Unfortunately, our study population had been experiencing palpitations for decades before a diagnosis was made. […] The known female predominance in AVNRT persisted in older age as well.

• #1 Atrioventricular Nodal Reentrant Tachycardia (AVNRT) – Causes, Symptoms, Diagnosis, and Treatment

  https://www.myfastheart.com/conditions-treatment/atrioventricular-nodal-reentrant-tachycardia-avnrt/

  Atrioventricular Nodal Reentrant Tachycardia (AVNRT) causes fast beating of the heart, or arrhythmia. […] AVNRT is considered a paroxysmal supraventricular tachycardia (SVT) which means that it is not persistent, involves the upper chambers of the heart and causes an abnormally fast heartbeat. Its effects can vary between patients and it may last anywhere from a few seconds to days at a time. […] Because of the variations in episode duration as well as the pulse rate, symptoms will vary widely between individuals. Some patients may not notice any symptoms at all, while others will find them debilitating. The most common symptoms include: A sensation of a fast-beating heart (palpitations), Fainting or lightheadedness, Chest pain, Trouble catching breath, Fatigue or weakness, Anxiety, Confusion (especially in the elderly).

• #1 Atrioventricular nodal reentrant tachycardia – UpToDate

  https://www.uptodate.com/contents/atrioventricular-nodal-reentrant-tachycardia

  Atrioventricular nodal reentrant tachycardia (AVNRT) is a regular supraventricular tachycardia (SVT) that results from the formation of a reentry circuit confined to the AV node and perinodal atrial tissue. Because of its abrupt onset and termination, AVNRT is categorized as a paroxysmal SVT (PSVT). […] Atrioventricular nodal reentrant tachycardia (AVNRT) is the most common form of regular, sustained, paroxysmal supraventricular tachycardia (PSVT), accounting for nearly two-thirds of all PSVTs, and is more common in female patients. […] AVNRT usually occurs in patients with otherwise normal hearts; however, it can occur in patients with structural heart disease. […] In a series of 231 patients with AVNRT, the mean age of symptom onset was 32 years, with two-thirds of cases beginning after the age of 20.

• #1 Atrioventricular Nodal Reentrant Tachycardia (AVNRT): Symptoms, Diagnosis, and Treatment

  https://angolodeldottorino.it/en/Medicine/Cardiology/heart-rhythm-disorders/atrioventricular-nodal-reentrant-tachycardia.php

  Patients typically report rapid, regular palpitations, often accompanied by sensations of strong and sudden heartbeats. In subjects with prolonged episodes, reduced cardiac output may lead to dyspnea and chest tightness, although these symptoms are not necessarily related to myocardial ischemia. In some cases, tachycardia may be associated with dizziness or presyncope, particularly in patients with limited cardiac reserve or prone to hypotension. Syncope is rare and usually occurs in individuals with autonomic dysfunction or particularly prolonged and poorly tolerated tachycardic episodes. […] The prognosis for AVNRT is generally favorable, particularly in patients without structural heart disease. Patients responding effectively to vagal maneuvers or pharmacological treatment can manage episodes without further interventions. However, frequent or highly symptomatic episodes may significantly impair quality of life, making definitive ablation treatment necessary.

• #1 Atrioventricular Nodal Reentrant Tachycardia (AVNRT) – Supraventricular Tachycardias – Supraventricular Arrhythmias – Cardiac Arrhythmias – Cardiovascular Diseases – Diseases – McMaster Textbook of Internal Medicine

  https://empendium.com/mcmtextbook/chapter/B31.II.2.6.2.

  Atrioventricular nodal reentrant tachycardia (AVNRT) is a paroxysmal tachycardia that occurs in patients with dual atrioventricular (AV) node physiology, as they have both a fast nodal pathway with a longer refractory period and a slow nodal pathway with a shorter refractory period. It is most commonly observed in individuals with no underlying structural heart disease. […] AVNRT usually occurs in young patients, causing paroxysmal palpitations that abruptly start and stop. The palpitations are usually relatively well tolerated, as no concomitant structural heart disease is found and the heart rates are usually 170 to 180 beats/min. Patients may describe a sensation of rapid regular pounding in the neck during tachycardia. The attacks may be frequent (up to several a day) and may require emergency care.

• #1 AV Nodal Reentrant Tachycardia: Causes, Symptoms, and TreatmentHealthline

  https://www.healthline.com/health/arrhythmia/av-nodal-reentrant-tachycardia

  Atrioventricular (AV) nodal reentrant tachycardia (AVNRT) is an irregular heart rhythm that can cause excessively fast heart rates. […] People with AVNRT may experience a sudden rapid heart rate upward of 140 to 280 beats per minute. […] Some of the most common symptoms of AVNRT include: dizziness, shortness of breath, chest pain, fainting, neck pain or discomfort, anxiety, noticeable palpitations. […] The overall outlook for people with AVNRT is positive, particularly with early diagnosis and treatment. […] Without treatment, you may also be more likely to experience symptoms such as dizziness, fainting, and fatigue. Such symptoms are also associated with severe cases of AVNRT. […] AVNRT isn’t typically dangerous, but it can be in rare cases. A delayed diagnosis may increase your risk of complications.

• #1 What Is Atrioventricular Nodal Reentry Tachycardia?

  https://www.icliniq.com/articles/heart-circulatory-health/atrioventricular-nodal-reentry-tachycardia

  Generally, atrioventricular nodal reentry tachycardia is tolerated well, and it usually occurs in patients with no clinical damage to the heart’s structure. In the absence of underlying heart conditions, the prognosis of atrioventricular nodal reentry tachycardia is excellent. More than 94 % of the population responds positively to the different treatment modalities, along with a low rate of risks and complications.

• #1 Radiofrequency catheter ablation of atrioventricular nodal reentry tachycardia in children and adolescents: a single center experience

  https://www.e-cep.org/journal/view.php?number=20125550691

  The recurrence rate in adult AVNRT patients after successful ablation is reported to be 3%5.8%. In this study, recurrence was observed in 12% of patients including those in whom the initial ablation failed. […] This study highlights the need for the establishment of ablation endpoint for pediatric AVNRT patients as well as research on risk factors for AVNRT recurrence.

• #1 Clinical and Experimental Pediatrics

  https://www.e-cep.org/m/journal/view.php?number=20125550691

  Atrioventricular nodal reentry tachycardia (AVNRT) is less common in pediatric patients than in adult patients. […] This study evaluated the efficacy of RFCA by retrospectively analyzing data on pediatric AVNRT patients who underwent RFCA at a single regional center. […] Among 190 pediatric patients who underwent RFCA for tachyarrhythmia, 50 (26.3%; mean age, 13.42.6 years) were diagnosed as having AVNRT by electrophysiological study. […] During follow-up, 6 patients had recurrence of supraventricular tachycardia, as confirmed by electrocardiography. […] The mean time to recurrence in the patients with recurrent AVNRT was 49.612.4 months. […] The recurrence rate in adult AVNRT patients after successful ablation is reported to be 3%5.8%. […] In this study, recurrence was observed in 12% of patients including those in whom the initial ablation failed. […] This study highlights the need for the establishment of ablation endpoint for pediatric AVNRT patients as well as research on risk factors for AVNRT recurrence.

• #1 What Is Atrioventricular Nodal Reentry Tachycardia (AVNRT)? – Rytmedoktor

  https://rytmedoktor.dk/en/what-is-atrioventricular-nodal-reentry-tachycardia-avnr/

  AVNRT is an abbreviation for the painfully long condition called: “AtrioVentricular Nodal Reentry Tachycardia” (we’ll stick to AVNRT!). […] The symptoms of AVNRT often become apparent in young adulthood but it can be seen in children. In rare cases the symptoms will only appear as the patient becomes older. The symptoms involve seizures that start suddenly, from one heartbeat to the next, and then – after minutes or hours – disappear as suddenly as it started disappear. Patients will often feel a strong and rapid pulse on the side of their neck. […] AVNRT is an absolutely benign heart rhythm disturbance without any prognostic significance. Therefore, it is solely the symptom burden that should affect decisions on ablation or not.

• #2 Atrioventricular nodal reentry tachycardia (AVNRT) – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/avnrt/symptoms-causes/syc-20573830

  Atrioventricular nodal reentry tachycardia (AVNRT) is a type of irregular heartbeat, also called an arrhythmia. It is the most common type of supraventricular tachycardia (SVT). […] People with AVNRT have a very fast heartbeat that often starts and ends suddenly. In AVNRT, the heart beats more than 100 times a minute. The condition is due to a change in heart signaling. […] A very fast heartbeat is the most common symptom of atrioventricular nodal reentry tachycardia (AVNRT). In AVNRT, the heart can beat between 120 to 280 times a minute. The fast heartbeat usually starts suddenly. […] AVNRT does not always cause symptoms. When symptoms do show up, they may include: A pounding feeling in the neck. Pounding or fluttering heartbeat, called palpitations. Chest pressure, tightness or pain. Dizziness or lightheadedness. Shortness of breath. Sweating. Weakness or extreme tiredness. Fainting or almost fainting. […] Symptoms of AVNRT may be mild in children. Some symptoms include sweating, trouble feeding, changes in skin color and a fast heartbeat.

• #2 About Atrioventricular Nodal Reentrant Tachycardia (AVNRT)

  https://www.verywellhealth.com/atrioventricular-nodal-reentrant-tachycardia-avnrt-1746235

  Atrioventricular nodal reentrant tachycardia (AVNRT) is a rapid, regular heartbeat that starts suddenly and without warning and may stop just as abruptly. It is a common type of what’s called paroxysmal supraventricular tachycardia (PSVT), a cardiac arrhythmia that often affects younger adults resulting in symptoms of dizziness or trouble breathing. […] AVNRT is a reentrant tachycardia. This means that an atypical electrical impulse becomes captured within the heart’s firing system, and it fires repeatedly within the circuit. This causes rapid and regular heartbeats. […] The fast heart rate occurs with symptoms that include: Palpitations in the chest, like a pounding or flutter, A pulsing in the neck, Fatigue, Chest discomfort or pain, Shortness of breath, Lightheadedness, dizziness, or fainting (syncope), Sweating, Nausea.

• #2 Supraventricular Tachycardias: Causes, Symptoms, and Treatment

  https://patient.info/doctor/supraventricular-tachycardia-in-adults

  Supraventricular tachycardia (SVT) generally refers to atrioventricular nodal re-entry tachycardia (AVNRT), atrioventricular re-entry tachycardia (AVRT) and atrial tachycardia. […] AVNRT is the most common form of SVT. […] Symptoms vary with the ventricular rate and duration of the SVT. Symptoms are more likely in those with underlying heart disease. They include: Palpitations and light-headedness, which are the most common symptoms reported. […] Patients with AVNRT being more likely to describe 'shirt flapping’ or 'neck pounding’ than patients with AVRT, possibly due to right atrial contraction against a closed tricuspid valve. […] Resulting heart failure may cause tachypnoea, hypotension, raised JVP, third heart sound and basal lung crepitations. […] AVNRT: Radiofrequency catheter ablation of the slow pathway is generally successful. […] Oral beta-blockers, diltiazem or verapamil may be appropriate for acute treatment of AVNRT. […] The risk is higher in patients who have experienced palpitations, in whom the risk is about 2.5 per 1,000 people per year, or 3-4% over a lifetime.

• #2 Atrioventricular Nodal Re-entrant Tachycardia – Hope For Hearts

  https://hopeforhearts.com.au/arrhythmias/atrioventricular-nodal-re-entrant-tachycardia/

  Atrioventricular nodal re-entrant tachycardia (AVNRT) is a common type of supraventricular tachycardia (SVT). […] Most patients with AVNRT present with symptoms such as: Dizziness / presyncope, Palpitations, Shortness of breath, Anxiety related palpitations, Fluttering feeling in the throat and/or neck, Potential chest discomfort, Heart rates between 140 250 beats per minute, Hypotension (low blood pressure) due to rapid heart rates. […] Symptoms may also be exacerbated by caffeine, tobacco, alcohol intake and can follow after exercise or due to significant emotional stressors that can precipitate an AVNRT episode.

• #2 Atrioventricular nodal reentry tachycardia (AVNRT) | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/atrioventricular-nodal-reentry-tachycardia-avnrt?content_id=CON-20239502

  Atrioventricular nodal reentry tachycardia (AVNRT) is a type of irregular heartbeat, also called an arrhythmia. It is the most common type of supraventricular tachycardia (SVT). […] People with AVNRT have a very fast heartbeat that often starts and ends suddenly. In AVNRT, the heart can beat between 120 to 280 times a minute. The fast heartbeat usually starts suddenly. […] AVNRT does not always cause symptoms. When symptoms do show up, they may include: A pounding feeling in the neck. Pounding or fluttering heartbeat, called palpitations. Chest pressure, tightness or pain. Dizziness or lightheadedness. Shortness of breath. Sweating. Weakness or extreme tiredness. Fainting or almost fainting. […] Symptoms of AVNRT may be mild in children. Some symptoms include sweating, trouble feeding, changes in skin color and a fast heartbeat.

• #2 Atrioventricular Nodal Reentrant Tachycardia in Very Elderly Patients: A Single-center Experience

  https://www.innovationsincrm.com/cardiac-rhythm-management/articles-2020/february/1538-atrioventricular-nodal-reentrant-tachycardia

  This led to the incorrect attribution of their symptoms to either anxiety or panic attacks. […] Elderly patients should be evaluated for an arrhythmic etiology when reporting palpitations, as many may benefit from EP study and ablation. […] AVNRT in the elderly is often confused with panic attacks. Panic attacks in the elderly should be properly evaluated for an arrhythmic etiology with long-term cardiac monitoring either using an event monitor or a loop recorder, as these patients may benefit from subsequent RF ablation.

• #2 Atrioventricular Nodal Reentry Tachycardia Clinical Presentation: History, Physical Examination

  https://emedicine.medscape.com/article/160215-clinical

  Atrioventricular nodal reentry tachycardia (AVNRT) is typically characterized by an abrupt onset and termination. Episodes may last from seconds to minutes to days. In the absence of structural heart disease, it is usually well tolerated. […] Common symptoms include the following: Palpitations, Nervousness, Anxiety, Lightheadedness, Neck pounding, Neck and chest discomfort, Dyspnea, Polyuria – Can occur after termination of an episode (due to the release of atrial natriuretic factor). […] AVNRT may cause angina or myocardial infarction in patients with coronary artery disease and may cause or worsen heart failure in patients with poor left ventricular function. […] Syncope may occur in patients with a rapid ventricular rate or prolonged tachycardia due to poor ventricular filling, decreased cardiac output, hypotension, and reduced cerebral perfusion. Syncope may also occur because of transient asystole when the tachycardia terminates, due to tachycardia-induced depression of the sinus node.

• #2 Mayo Clinic Health Library – Atrioventricular nodal reentry tachycardia (AVNRT) | Swiss Medical Network

  https://www.swissmedical.net/en/healtcare-library/con-20239502

  A very fast heartbeat is the most common symptom of atrioventricular nodal reentry tachycardia (AVNRT). In AVNRT, the heart can beat between 120 to 280 times a minute. The fast heartbeat usually starts suddenly. […] AVNRT does not always cause symptoms. When symptoms do show up, they may include: A pounding feeling in the neck. Pounding or fluttering heartbeat, called palpitations. Chest pressure, tightness or pain. Dizziness or lightheadedness. Shortness of breath. Sweating. Weakness or extreme tiredness. Fainting or almost fainting. […] Symptoms of AVNRT may be mild in children. Some symptoms include sweating, trouble feeding, changes in skin color and a fast heartbeat.

• #2 AVNRT for two • LITFL • ECG Library Diagnosis

  https://litfl.com/avnrt-for-two/

  Patients will typically complain of the sudden onset of rapid, regular palpitations. The patient may experience a brief fall in blood pressure causing presyncope or occasionally syncope. […] The tachycardia typically ranges between 140-280 bpm and is regular in nature. It may cease spontaneously (and abruptly) or continue indefinitely until medical treatment is sought. […] The condition is generally well tolerated and is rarely life threatening in patients with pre-existing heart disease. […] The ECG will typically show a tachycardia of 140-280 bpm with normal and regular QRS complexes. There will be either […] For recurrent episodes of palpitations, a Holter monitor and EPS may be useful in identifying rhythms typical of AVNRT. […] Patients may be instructed to undertake vagal manoeuvres upon the onset of symptoms which can be effective in stopping the AVNRT. This may involve carotid sinus massage or valsalva manoeuvres, which will both stimulate the vagus nerve. Alternative strategies include: […] Cardioversion is rarely used on patients with AVNRT, usually when the tachycardia is refractory to other medical therapies or the tachycardia is causing haemodynamic instability (falling blood pressure, development of heart failure etc.).

• #2 Reentrant (Paroxysmal) Supraventricular Tachycardias (PSVT) – Cardiovascular Disorders – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/cardiovascular-disorders/specific-cardiac-arrhythmias/reentrant-paroxysmal-supraventricular-tachycardias-psvt

  Atrioventricular nodal reentrant tachycardia (AVNRT) occurs most often in otherwise healthy people. It is most commonly triggered by an atrial premature beat. Patients typically have episodes of sudden-onset, sudden-offset, rapid, regular palpitations often associated with symptoms of hemodynamic compromise (eg, dyspnea, chest discomfort, light-headedness). Attacks may last only a few seconds or persist for several hours (rarely, 12 hours). […] Most patients present during young adulthood or middle age. Examination is usually unremarkable except for a heart rate of 120 to 240 beats/minute, most commonly 180 to 210 beats/minute.

• #2 AV nodal reentrant tachycardia: Diagnosis and Treatment – Dermatology Advisor

  https://www.dermatologyadvisor.com/home/decision-support-in-medicine/cardiology/av-nodal-reentrant-tachycardia-diagnosis-and-treatment/

  Atrioventricular nodal reentrant tachycardia (AVNRT) is the most common form of paroxysmal supraventricular tachycardia (PSVT) encountered in clinical practice. It is responsible for approximately 60% to 70% of the paroxysmal forms of PSVT. AVNRT is generally a narrow complex tachycardia with rates of 120 to 240 bpm. It generally presents in the first 2 decades of life but can occur at any age, and sometimes has a bimodal distribution with the incidence peaking in the late teens and again in the early thirties. Gender expression is roughly 2:1 female to male. […] Presentation may be subtle and nonspecific with the more common symptoms being palpitations, dizziness, and/or unexplained dyspnea. Other symptoms can be more severe and include chest pain often described as a fullness in the chest, neck, or throat associated with palpitations. Syncope can occur with AVNRT but this is uncommon. A key feature is abrupt onset and termination of the tachycardia and hence the signs and symptoms. The tachycardia can last minutes to hours and in extreme cases even days if not treated.

• #2 Atrioventricular Nodal Reentry Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/sites/books/NBK499936/

  Atrioventricular nodal reentrant tachycardia (AVNRT) is a type of paroxysmal supraventricular tachycardia that results due to the presence of a reentry circuit within or adjacent to the AV node. The diagnosis of AVNRT requires visualization of an electrocardiogram (ECG). In most cases, an ECG will show heart rate between 140 and 280 beats per minute (bpm), and in the absence of aberrant conduction, a QRS complex of fewer than 120 milliseconds. […] Patients with atrioventricular nodal reentrant tachycardia usually present with symptoms of dizziness, syncope, shortness of breath, intermittent palpitations, pain/discomfort in the neck, pain/discomfort in the chest, anxiety, and polyuria secondary atrial natriuretic factor secreted mainly by the heart atria in response to atrial stretch. […] Although syncope is an uncommon symptom in patients with AVNRT, it is typical in patients who have a heart rate above 170 bpm as less filling of the ventricles leads to the reduction in cardiac output and the decreased perfusion of the brain.

• #2 AV nodal reentrant tachycardia: Diagnosis and Treatment – Dermatology Advisor

  https://www.dermatologyadvisor.com/home/decision-support-in-medicine/cardiology/av-nodal-reentrant-tachycardia-diagnosis-and-treatment/

  The hallmark clinical features of AVNRT in decreasing order of prevalence are: palpitations, dizziness, dyspnea, chest pain or fullness, fatigue, and rarely presyncope or syncope. Patients with AVNRT often describe a fullness in their neck or throat as well, and this may be a reflection of the near simultaneous activation of the ventricle and the atrium. […] Following termination of the arrhythmia, most patients are quickly relieved of symptoms but there is a subset of patients that are physically exhausted for hours to days. […] AVNRT occurs more commonly in females. There is a 2:1 gender bias. Familial predispositions have also been described. The triggers for typical AVNRT are usually premature atrial contractions and occasionally premature ventricular contractions. […] Anything that increases the frequency of PACs, including aging, alcohol, tobacco products, adrenergic stimulating medications, hyperthyroidism, pregnancy, illness, emotional stress, and/or illicit drugs, can increase the frequency of AVNRT.

• #2 AVNRT: AV Nodal Reentrant Tachycardia – The Cardiology Advisor

  https://www.thecardiologyadvisor.com/ddi/avnrt-av-nodal-reentrant-tachycardia/

  AV nodal reentrant tachycardia tends to be paroxysmal. During episodes, the heart rate is generally in the 140 to 280 bpm range and the QRS complex is narrow (less than 120 milliseconds). […] All 3 primary types of AVNRT present with similar symptoms. The most visible symptoms of AVNRT include the following: Palpitations; Chest pain; Tiredness; Lightheadedness; Difficulty breathing; Dizziness; and Fainting. Symptoms may start and stop abruptly. Between episodes, patients may have no symptoms. […] Episodes of AVNRT can occur spontaneously or may be provoked by multiple factors, including intense exercise, high levels of physiologic stress, consumption of caffeine or alcohol, and use of certain medications, such as beta-antagonists and sympathomimetics. […] In women, AVNRT may develop or be exacerbated by pregnancy or phases of the menstrual cycle.

• #2 Atrioventricular Nodal Reentrant Tachycardia

  https://mydoctor.kaiserpermanente.org/mas/structured-content/Condition_AV_Nodal_Reentrant_Tachycardia_-_Cardio_EP.xml?co=/regions/mas

  Atrioventricular nodal reentrant tachycardia (AVNRT) is a disorder of the heart’s electrical system that causes sudden, very rapid heart rate. […] AVNRT symptoms usually occur when people are in their 20s. Symptoms can reoccur in their 40s to 50s (during perimenopause). Some people have no symptoms until their 70s or 80s. […] Symptoms can include: Heart palpitations, Chest pain or discomfort, Dizziness, light-headedness, or fainting, Anxiety, Pulsation sensations in the neck, Shortness of breath. […] AVNRT can also: Cause angina (chest pain) or heart attack, if you have coronary artery disease. Make heart failure worse, if your left ventricle doesn’t work properly when pumping blood to the body.

• #2 AVNRT Causes are Treated at Vejthani Hospital

  https://www.vejthani.com/diseases-conditions/atrioventricular-nodal-reentry-tachycardia-avnrt/

  Atrioventricular nodal reentry tachycardia (AVNRT) the most common type of supraventricular tachycardia (SVT) is caused by a reentrant circuit, which is an extra pathway in the AV node that causes a patients heart to beat prematurely. The disease causes episodes of an abnormally rapid heartbeat at a rate of more than 100 beats per minute. Although any person can develop this disease, it is mostly found in young women. […] AVNRT may cause sudden episodes of fast heartbeats and resolve in a short period of time. […] AVNRT may cause some common signs, including: Lightheadness, Dizziness, Rapid heartbeat (140 to 280 beats per minute), Heart pounding, Urinary frequency, Breathing difficulties. […] As a rare case, AVNRT may be severe and cause serious symptoms and complications such as: Tightness in the chest, Confusion, Fainting or passing out, Low blood pressure, Shock.

• #2 Atrioventricular Nodal Reentry Tachycardia – MD Searchlight

  https://mdsearchlight.com/heart-health/atrioventricular-nodal-reentry-tachycardia/?utm_source=pubmedlink&utm_campaign=MDS&utm_content=17974

  Atrioventricular nodal reentrant tachycardia (AVNRT) is a heart condition that often leads to symptoms like dizziness, fainting, breathlessness, irregular heartbeats, discomfort in the neck and chest, feelings of anxiety, and increased urination. These symptoms can occur due to increased heart activity. People with AVNRT who also have heart disease might experience a heart attack due to the extra strain on their heart. In some cases, those with heart failure might have a worsened condition and decreased heart efficiency due to AVNRT. […] Fainting is not common with AVNRT, but it can occur in cases where the heart rate exceeds 170 beats per minute. This can happen because the heart doesn’t have enough time to fill with blood before pumping, reducing the amount of blood available to the brain. Decreased heart activity due to high heart rates may also cause these symptoms.

• #2 Atrioventricular Nodal Reentrant Tachycardia | Thoracic Key

  https://thoracickey.com/atrioventricular-nodal-reentrant-tachycardia/

  AVNRT accounts for 50%60% of symptomatic paroxysmal supraventricular tachycardias (SVT) […] Common symptoms include palpitations (neck pulsation), dizziness, syncope (10%). […] The condition is not life threatening but can lead to symptoms. […] Tachycardia-mediated cardiomyopathy may rarely occur (more often with atypical AVNRT).

• #2 Atrioventricular Nodal Reentrant Tachycardia (AVNRT) – AF-ABLATION

  https://af-ablation.org/en/arrhythmological-disorders/supraventricular-tachycardia/atrioventricular-nodal-reentrant-tachycardia-avnrt/

  Nodal re-entry tachycardia is characterized by arrhythmic episodes with sudden onset and remission. The most common symptoms include palpitations, nervousness, anxiety, lightheadedness, dizziness, chest pain, and dyspnea. […] Although NRT generally has a benign course, it can cause or worsen heart failure in patients with reduced left ventricular function, as well as cause angina or myocardial infarction in patients with coronary artery disease. Syncope can occur in patients with a very rapid ventricular response or with prolonged tachycardia due to poor ventricular filling, resulting in reduced cardiac output, hypotension, and reduced brain perfusion. However, it can also occur due to transient asystole at the end of tachycardia, due to tachycardia-induced sinus node depression.

• #2 AV Nodal Reentrant Tachycardia: Causes, Symptoms, and TreatmentHealthline

  https://www.healthline.com/health/arrhythmia/av-nodal-reentrant-tachycardia

  Atrioventricular (AV) nodal reentrant tachycardia (AVNRT) is an irregular heart rhythm that can cause excessively fast heart rates. […] People with AVNRT may experience a sudden rapid heart rate upward of 140 to 280 beats per minute. […] Some of the most common symptoms of AVNRT include: dizziness, shortness of breath, chest pain, fainting, neck pain or discomfort, anxiety, noticeable palpitations. […] The overall outlook for people with AVNRT is positive, particularly with early diagnosis and treatment. […] Without treatment, you may also be more likely to experience symptoms such as dizziness, fainting, and fatigue. Such symptoms are also associated with severe cases of AVNRT. […] AVNRT isn’t typically dangerous, but it can be in rare cases. A delayed diagnosis may increase your risk of complications.

• #2 Atrioventricular nodal reentry tachycardia (AVNRT)

  https://www.mymlc.com/health-information/diseases-and-conditions/a/atrioventricular-nodal-reentry-tachycardia-avnrt/

  Atrioventricular nodal reentry tachycardia (AVNRT) is the most common type of supraventricular tachycardia. People with AVNRT have episodes of an abnormally fast heartbeat (more than 100 beats per minute) that often start and end suddenly. […] AVNRT tends to occur more often in young women, but it can affect anyone.

• #2 Atrioventricular Nodal Reentrant Tachycardia | SpringerLink

  https://link.springer.com/10.1007/978-3-540-29676-8_192

  Atrioventricular nodal reentrant tachycardia is the most common form of paroxysmal supraventricular tachycardia. AVNRT is more common in women than men (ratio 3:1). Symptoms (palpitations, polyuria, dizziness, presyncope or even syncope) may occur at any age but AVNRT is rare in children (mean age at symptoms onset: 30-43 years; range 5-90 years). […] Most patients with AVNRT have no structural heart disease. Tachycardia cycle length is extremely variable (600-220 ms) with a mean of 340 ms in the absence of drugs. Predisposing factors are non-specific but stressful situations, exercise or changes in position are frequently reported. The 12-lead resting ECG is usually normal without ventricular preexcitation.

• #2 AV-Nodal Reentrant Tachycardia (AVNRT) in Children | UpBeat.org – powered by the Heart Rhythm Society

  https://upbeat.org/pediatrics/AVNRT

  AV-nodal reentrant tachycardia (AVNRT) is a type of heart rhythm disorder that begins in the upper chambers of the heart (atria) and travels through an abnormal electrical circuit within the AV node. […] General characteristics of AVNRT include an abnormally fast heart, which can be as high as 220-320 bpm in younger children. […] Although AVNRT is not usually dangerous, if left untreated it can affect the hearts ability to pump normally. […] Signs and symptoms of AVNRT include: Palpitations- the feeling of a rapid or erratic heart beat while sitting quietly or at rest or faster than normal heart rate with exercise, Dizziness, Fainting (syncope), Chest pain, Shortness of breath, Heart pounding, Feeling pulsations in your throat, Sudden sense of a fast heart rate and a sudden end to the to the fast heart rate, Toddlers and younger (when verbal) children may describe symptoms as their „heart beeping”. […] These symptoms can be brief but can also last for several hours.

• #2 AV nodal reentrant tachycardia (AVNRT) – Paces

  https://www.pacesep.org/patient-resources/avnrt/

  AV-nodal reentrant tachycardia (AVNRT) is a type of SVT that begins in the upper chambers of the heart (Atria) and travels through an abnormal electrical circuit within the AV node. […] General characteristics of AVNRT include: Abnormal fast heart: rate can be has high as 220-320 bpm in younger children. […] Although AVNRT is not usually dangerous, if left untreated it can affect the hearts ability to pump normally. […] Signs and symptoms of AVNRT include: Palpitations- the feeling of a rapid or erratic heart beat while sitting quietly or at rest or faster than normal heart rate with exercise, Dizziness, Fainting (syncope), Chest pain, Shortness of breath, Heart pounding, Feeling pulsations in your throat, Sudden sense of a fast heart rate and a sudden end to the to the fast heart rate, Toddlers and younger (when verbal) children may describe symptoms as their „heart beeping”. […] Infants cannot communicate their symptoms but they may exhibit signs of: Poor feeding, Profuse sweating with feeding, Being Listless/lethargic, Appearing generally ill, Breathing faster than normal. […] These symptoms can be brief but can also last for several hours.

• #2 Atrioventricular Nodal Reentrant Tachycardia in Very Elderly Patients: A Single-center Experience

  https://www.innovationsincrm.com/cardiac-rhythm-management/articles-2020/february/1538-atrioventricular-nodal-reentrant-tachycardia

  We present a series of elderly patients older than 80 years who had recurrent palpitations for decades and who were subsequently diagnosed with atrioventricular (AV) nodal reentrant tachycardia (AVNRT). […] These patients had palpitations and had been treated for anxiety and panic attacks for decades. […] All 12 patients experienced palpitations and all but three had documented SVT on a loop recorder or an event monitor. […] The diagnosis of SVT and AVNRT, which is usually straightforward, can be elusive because episodes of the tachycardia may subside before the patient seeks medical help for the episode. Unfortunately, our study population had been experiencing palpitations for decades before a diagnosis was made. […] The known female predominance in AVNRT persisted in older age as well.

• #2 Atrioventricular Nodal Reentry Tachycardia – MD Searchlight

  https://mdsearchlight.com/heart-health/atrioventricular-nodal-reentry-tachycardia/?utm_source=pubmedlink&utm_campaign=MDS&utm_content=17974

  Patients with AVNRT generally have heart rates between 140 and 280 beats per minute. If they also have heart failure or heart disease, they may experience chest pain and other symptoms indicative of heart failure like rapid breathing, wheezing, and swelling in the lower body parts. Doctors can sometimes observe specific features on physical examination, such as simultaneous contraction of the chambers of the heart, resulting in pronounced neck veins. Low blood pressure due to insufficient heart filling can also be detected during the examination.

• #2 AV Nodal Reentrant Tachycardia (AVNRT)

  http://www.washingtonhra.com/arrhythmias/av-nodal-reentrant-tachycardia-avnrt.php

  The symptoms of AVNRT are similar to other SVT, with palpitation, lightheadedness, dizziness, shortness of breath, reduced exercise capacity, weakness, fatigue, chest discomfort, and sweating episodes. These symptoms are primarily due to loss of atrioventricular synchrony (when then atria and ventricles no longer contract in a tightly-coupled progression) or the development of rapid and/or irregular ventricular rates. […] AV nodal reentry tachycardia, as an isolated rhythm disturbance, is not considered a life-threatening condition. Some patients are able to reduce their symptomatic episodes with life-style modification, including avoidance of caffeinated beverages, alcohol, sleep-deprivation, stressful situations, and anxiety. The frequency or severity of symptoms may fluctuate from time-to-time, but they rarely disappear. Because the arrhythmia is due to an abnormal electrical circuit in the heart, there is little any patient can do by himself or herself to prevent or suppress the arrhythmia completely.

• #2 Wolff-Parkinson White Syndrome (WPW) and Atrioventricular reciprocating tachycardia (AVRT)

  https://www.washingtonhra.com/arrhythmias/wolff-parkinson-white-syndrome-wpw-and-atrioventricular-reciprocating-tachycardia-avrt.php

  The symptoms of AVRT are similar to other SVT, with palpitation, lightheadedness, dizziness, shortness of breath, reduced exercise capacity, weakness, fatigue, chest discomfort, and sweating episodes. These symptoms are primarily due to the development of rapid and/or irregular ventricular rates. […] Atrioventricular reciprocating (AVRT) tachycardia can be diagnosed by your physician via an electrocardiogram or an ambulatory monitoring device, i.e. Holter or Event monitor, specifically during an arrhythmia episode. These episodes of SVT can be intermittent and not reliably present on a daily basis. […] Some patients are able to reduce their symptomatic episodes with life-style modification, including avoidance of caffeinated beverages, alcohol, sleep-deprivation, stressful situations, and anxiety. The frequency or severity of symptoms may fluctuate from time-to-time, but they rarely disappear.

• #2 Atrioventricular Nodal Reentry Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/sites/books/NBK499936/

  Patients with AVNRT usually present with a heart rate within the range of 140 to 280 bpm. If a patient has known heart failure or coronary artery disease, they may complain of chest pain. […] Hemodynamically unstable patients present with tachycardia associated with hypotension, ischemic chest pain, altered mental status, respiratory failure, or shock. […] Prognosis is generally good when a healthcare provider promptly identifies the rhythm. […] If not identified promptly, symptomatic complications such as syncope, fatigue, or dizziness can occur.

• #2 Atrioventricular Nodal Reentry Tachycardia | Treatment & Management | Point of Care

  https://www.statpearls.com/point-of-care/17974

  Patients with AVNRT usually present with a heart rate within the range of 140 to 280 bpm. If a patient has known heart failure or coronary artery disease, they may complain of chest pain. […] During a physical exam, a provider might be able to appreciate Cannon A waves as the atrium contracts in conjunction with the ventricular contractions against a closed tricuspid valve. Hypotension secondary to decreased ventricular filling also may be a significant physical exam finding in patients presenting with AVNRT. […] Prognosis is generally good when a healthcare provider promptly identifies the rhythm. […] If not identified promptly, symptomatic complications such as syncope, fatigue, or dizziness can occur.

• #2 Atrioventricular Nodal Reentry Tachycardia – MD Searchlight

  https://mdsearchlight.com/heart-health/atrioventricular-nodal-reentry-tachycardia/

  Atrioventricular nodal reentrant tachycardia (AVNRT) is a heart condition that often leads to symptoms like dizziness, fainting, breathlessness, irregular heartbeats, discomfort in the neck and chest, feelings of anxiety, and increased urination. These symptoms can occur due to increased heart activity. […] Fainting is not common with AVNRT, but it can occur in cases where the heart rate exceeds 170 beats per minute. This can happen because the heart doesn’t have enough time to fill with blood before pumping, reducing the amount of blood available to the brain. Decreased heart activity due to high heart rates may also cause these symptoms. […] Patients with AVNRT generally have heart rates between 140 and 280 beats per minute. If they also have heart failure or heart disease, they may experience chest pain and other symptoms indicative of heart failure like rapid breathing, wheezing, and swelling in the lower body parts. […] The prognosis for Atrioventricular Nodal Reentry Tachycardia (AVNRT) is typically positive if a healthcare provider quickly identifies the heart rhythm. […] If symptoms like fainting, tiredness, or dizziness are not quickly recognized and treated, they can lead to complications.

• #2 Clinical and Experimental Pediatrics

  https://www.e-cep.org/m/journal/view.php?number=20125550691

  Atrioventricular nodal reentry tachycardia (AVNRT) is less common in pediatric patients than in adult patients. […] This study evaluated the efficacy of RFCA by retrospectively analyzing data on pediatric AVNRT patients who underwent RFCA at a single regional center. […] Among 190 pediatric patients who underwent RFCA for tachyarrhythmia, 50 (26.3%; mean age, 13.42.6 years) were diagnosed as having AVNRT by electrophysiological study. […] During follow-up, 6 patients had recurrence of supraventricular tachycardia, as confirmed by electrocardiography. […] The mean time to recurrence in the patients with recurrent AVNRT was 49.612.4 months. […] The recurrence rate in adult AVNRT patients after successful ablation is reported to be 3%5.8%. […] In this study, recurrence was observed in 12% of patients including those in whom the initial ablation failed. […] This study highlights the need for the establishment of ablation endpoint for pediatric AVNRT patients as well as research on risk factors for AVNRT recurrence.

• #2 Atrioventricular Nodal Reentrant Tachycardia (AVNRT): Symptoms, Diagnosis, and Treatment

  https://angolodeldottorino.it/en/Medicine/Cardiology/heart-rhythm-disorders/atrioventricular-nodal-reentrant-tachycardia.php

  Patients typically report rapid, regular palpitations, often accompanied by sensations of strong and sudden heartbeats. In subjects with prolonged episodes, reduced cardiac output may lead to dyspnea and chest tightness, although these symptoms are not necessarily related to myocardial ischemia. In some cases, tachycardia may be associated with dizziness or presyncope, particularly in patients with limited cardiac reserve or prone to hypotension. Syncope is rare and usually occurs in individuals with autonomic dysfunction or particularly prolonged and poorly tolerated tachycardic episodes. […] The prognosis for AVNRT is generally favorable, particularly in patients without structural heart disease. Patients responding effectively to vagal maneuvers or pharmacological treatment can manage episodes without further interventions. However, frequent or highly symptomatic episodes may significantly impair quality of life, making definitive ablation treatment necessary.

• #3 Atrioventricular nodal reentry tachycardia (AVNRT) – Overview – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/avnrt/cdc-20355254

  Atrioventricular nodal reentry tachycardia (AVNRT) is a type of irregular heartbeat, also called an arrhythmia. It is the most common type of supraventricular tachycardia. […] People with AVNRT have an irregularly fast heartbeat that often starts and ends suddenly. In AVNRT, the heart beats more than 100 times a minute. The condition is due to a change in heart signaling. There is an extra pathway for heart signals to travel, called a reentrant circuit. That extra pathway causes the heart to beat too early. […] AVNRT tends to occur more often in young women. But anyone can have it at any age. AVNRT may not need treatment. When recommended, treatment may include specific actions or movements, medicines, or a heart procedure. […] Most people with atrioventricular nodal reentry tachycardia (AVNRT) don’t need treatment. But if the fast heartbeat occurs often or lasts a long time, treatment may be needed.

• #3 Atrioventricular Nodal Reentrant Tachycardia | SpringerLink

  https://link.springer.com/10.1007/978-3-540-29676-8_192

  Atrioventricular nodal reentrant tachycardia is the most common form of paroxysmal supraventricular tachycardia. AVNRT is more common in women than men (ratio 3:1). Symptoms (palpitations, polyuria, dizziness, presyncope or even syncope) may occur at any age but AVNRT is rare in children (mean age at symptoms onset: 30-43 years; range 5-90 years). […] Most patients with AVNRT have no structural heart disease. Tachycardia cycle length is extremely variable (600-220 ms) with a mean of 340 ms in the absence of drugs. Predisposing factors are non-specific but stressful situations, exercise or changes in position are frequently reported. The 12-lead resting ECG is usually normal without ventricular preexcitation.

• #3 Radiofrequency catheter ablation of atrioventricular nodal reentry tachycardia in children and adolescents: a single center experience

  https://www.e-cep.org/journal/view.php?number=20125550691

  Atrioventricular nodal reentry tachycardia (AVNRT) is less common in pediatric patients than in adult patients. […] This study evaluated the efficacy of RFCA by retrospectively analyzing data on pediatric AVNRT patients who underwent RFCA at a single regional center. […] Among 190 pediatric patients who underwent RFCA for tachyarrhythmia, 50 (26.3%; mean age, 13.42.6 years) were diagnosed as having AVNRT by electrophysiological study. […] During follow-up, 6 patients had recurrence of supraventricular tachycardia, as confirmed by electrocardiography. […] RFCA is safe and effective in pediatric AVNRT patients. […] The success rate of RFCA in pediatric AVNRT cases reported by the Pediatric Radiofrequency Catheter Ablation Registry and the Pediatric Electrophysiology Society was 95%, which was similar to that noted in adults.

• #3 AV nodal reentrant tachycardia: Diagnosis and Treatment

  https://www.flheartbeat.com/conditions/av-nodal-reentry/

  AV Nodal Reentrant Tachycardia or AVNRT is the second most common supraventricular tachycardia or SVT, after Atrial Fibrillation (Afib) meaning that it causes a fast heart rhythm above the ventricles. […] AVNRT typically affects people in their 30s or 40s and rarely affects children or adolescents. This arrhythmia also affects women more than men. […] AVNRT is considered a paroxysmal or occasional arrhythmia, meaning that it is sporadic and temporary. Some episodes may last a few seconds up to a few hours or days. The severity of the episode can vary dramatically as well. Some patients may have very little discomfort while for others it may be debilitating. […] Many patients will experience symptoms like other SVTs including fast heartbeat or palpitations dizziness or lightheadedness, inability to exercise as before, weakness and fatigue chest pain or discomfort, and more.

• #3 What Is Atrioventricular Nodal Reentry Tachycardia?

  https://www.icliniq.com/articles/heart-circulatory-health/atrioventricular-nodal-reentry-tachycardia

  Generally, atrioventricular nodal reentry tachycardia is tolerated well, and it usually occurs in patients with no clinical damage to the heart’s structure. In the absence of underlying heart conditions, the prognosis of atrioventricular nodal reentry tachycardia is excellent. More than 94 % of the population responds positively to the different treatment modalities, along with a low rate of risks and complications.

• #3 Atrioventricular Nodal Reentry Tachycardia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/sites/books/NBK499936/

  Patients with AVNRT usually present with a heart rate within the range of 140 to 280 bpm. If a patient has known heart failure or coronary artery disease, they may complain of chest pain. […] Hemodynamically unstable patients present with tachycardia associated with hypotension, ischemic chest pain, altered mental status, respiratory failure, or shock. […] Prognosis is generally good when a healthcare provider promptly identifies the rhythm. […] If not identified promptly, symptomatic complications such as syncope, fatigue, or dizziness can occur.

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