Atrioventricular reentrant tachycardia

Atrioventricular reentrant tachycardia, atrioventricular reciprocating tachycardia or AVRT, is a supraventricular tachycardia (SVT) most commonly associated with Wolff-Parkinson-White syndrome, in which an accessory pathway allows electrical signal from the ventricles to enter the atria and cause premature contraction and repeat stimulation of the atrioventricular node.