title: Coexistence of atrioventricular nodal reentrant tachycardia and idiopathic left ventricular outflow-tract tachycardia.
abstract: Double tachycardia is a relatively rare condition. We describe a 21 year old woman with history of frequent palpitations. In one of these episodes, she had wide complex tachycardia with right bundle branch and inferior axis morphology. A typical atrioventricular nodal tachycardia was induced during electrophysiologic study, aimed at induction of clinically documented tachycardia. Initially no ventricular tachycardia was inducible. After successful ablation of slow pathway, a wide complex tachycardia was induced by programmed stimulation from right ventricular outflow tract. Mapping localized the focus of tachycardia in left ventricular outflow tract and successfully ablated via retrograde aortic approach. During 7 month's follow-up, she has been symptom free with no recurrence. This work describes successful ablation of rare combination of typical atrioventricular nodal tachycardia and left ventricular outflow tract tachycardia in the same patient during one session.
authors.affiliation: Department of Pacemaker and Electrophysiology, Shahid Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran. majid.haghjoo@gmail.com
authors.forename: Majid
authors.initials: M
authors.lastname: Haghjoo
authors.forename: Arash
authors.initials: A
authors.lastname: Arya
authors.forename: Mohammadreza
authors.initials: M
authors.lastname: Dehghani
authors.forename: Zahra
authors.initials: Z
authors.lastname: Emkanjoo
authors.forename: Amirfarjam
authors.initials: A
authors.lastname: Fazelifar
authors.forename: Alireza
authors.initials: A
authors.lastname: Heidari
authors.forename: Mohammadali
authors.initials: M
authors.lastname: Sadr-Ameli