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AV-nodal reentrant tachycardia; Other names: Atrioventricular-nodal reentrant tachycardia: An example of an ECG tracing typical of uncommon AV nodal reentrant tachycardia. Highlighted in yellow is the P wave that falls after the QRS complex. Specialty: Cardiology: Symptoms: Palpitations, chest tightness, neck pulsation: Diagnostic method
Atrioventricular nodal re-entry tachycardia, [11] which is caused by a dual AV node physiology and AVNRT can only occur in people with it, however almost half of the population have it, though only a few of them will develop AVNRT at some point in life.
Atrioventricular reentrant tachycardia (AVRT), or atrioventricular reciprocating tachycardia, is a type of heart arrhythmia with an abnormally fast rhythm (tachycardia); it is classified as a type of supraventricular tachycardia (SVT).
English: What are AVRT & AVNRT? AVRT stands for atrioventricular reentrant tachycardia, which is a fast heart rate that results from an accessory electrical pathway in the heart. AVNRT stands for atrioventricular nodal reentrant tachycardia, and results from a reentrant circuit that's in or near the AV node.
For AVNRT, sometimes people can use vagal maneuvers as well, which are ways to activate the vagus nerve, which tends to block the AV node temporarily, therefore potentially stopping the episode. Some methods include a carotid sinus massage, as well as a valsalva maneuver—which is forced exhalation against a closed airway.
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The majority of time symptomatic WPW fits the definition of AVRT (Supraventricular tachycardia) however AVNRT (dual AV nodal physiology) exist in ~10% of patients with WPW syndrome creating the possibility of spontaneous atrial fibrillation degenerating into ventricular fibrillation (VF). The fact that WPW patients are young and do not have ...
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