Atrioventricular reentrant tachycardia

Atrioventricular reentrant tachycardia
Other names	Atrioventricular reciprocating tachycardia
Conduction pathway in atrioventricular reentrant tachycardia, a form of supraventricular tachycardia
Specialty	Cardiology

Atrioventricular reentrant tachycardia (AVRT), or atrioventricular reciprocating tachycardia, is a type of heart arrhythmia with an abnormally fast rhythm (tachychardia); it is classified as a type of supraventricular tachycardia (SVT). AVRT is most commonly associated with Wolff–Parkinson–White syndrome, but is also seen in permanent junctional reciprocating tachycardia (PJRT). In AVRT, an accessory pathway allows electrical signals from the heart's ventricles to enter the atria and cause earlier than normal contraction, which leads to repeated stimulation of the atrioventricular node.^[1]