View source for Atrioventricular reciprocating tachycardia

'''Atrioventricular reciprocating/reentry tachycardia''' (AVRT) is a paroxysmal tachycardia characterised by the formation of a re-entry circuit consisting of the AV node and the accessory pathway, usually precipitated by a [[Supraventricular premature beats|premature atrial beat]]. AVRT may be orthodromic, which is the case in 95% of cases, or antidromic, in the remaining cases. AVRT is most commonly seen in [[Wolff-Parkinson-White syndrome]].