Case 65

Abstract

A 36-year-old woman was referred to our institution for repetitive, polymorphic ventricular tachycardia and ventricular fibrillation (PMVT, VF). A comprehensive cardiovascular evaluation revealed normal left ventricular structure and function. The baseline QT interval was normal and there was no family history of sudden cardiac death. She had an ICD placed due to recurrent presyncope with these episodes. Intracardiac electrograms and telemetric monitoring revealed recurrent PMVT episodes which were initiated with short-coupled PVCs of uniform morphology. She had failed multiple antiarrhythmic agents, as well as a previous ablation attempt. © Springer-Verlag London Limited 2011.