[Ablation of right ventricular outflow tract tachycardia using a new, simplified technique for three-dimensional mapping: a case report].
Right ventricular outflow tract tachycardias comprise a subgroup of idiopathic ventricular tachycardias that occur in the absence of structural heart disease. Twelve-lead surface electrocardiography shows a left bundle branch block morphology and an inferiorly-oriented frontal axis during tachycardia. Non-sustained nature of arrhythmia and structure of the outflow tract makes catheter ablation of focal arrhythmia origin difficult. Herein, we presented ablation of right ventricular outflow tract tachycardia in a 32-year-old male patient using a new, simplified technique, described by Saleem et al., for three-dimensional mapping of the outflow tract. The patient was admitted with tachycardia of left bundle branch block with inferior axis morphology. In this technique, a spiral multipolar catheter was positioned in the right ventricular outflow tract and served as a guide for mapping and ablation. The patient was asymptomatic in the first and third months of the procedure.
Diker
Erdem
E
Ankara Numune Eğitim ve Araştirma Hastanesi Kardiyoloji Kliniği, Ankara. erdem.diker@isbank.net.tr
Canbay
Alper
A
Celebi
Ozlem Ozcan
OO
Aydoğdu
Sinan
S
D000328:Adult; D002037:Bundle-Branch Block / Q000503:physiopathology / Q000601:surgery*; D017115:Catheter Ablation / Q000379:methods*; D022062:Electrophysiologic Techniques, Cardiac / Q000379:methods*; D006801:Humans; D008297:Male; D017180:Tachycardia, Ventricular / Q000503:physiopathology / Q000601:surgery*