Successful ablation of incessant idiopathic right ventricular tachycardia arising from unusual sites in children

Abstract

Incessant idiopathic ventricular tachycardia originating from unusual sites of the right ventricle in children, resulting in significant symptoms and impaired ventricular function, can be successfully treated with catheter ablation.

Two apparently remote types of ventricular tachycardia from a single right bundle branch focal source

“…Idiopathic RV arrhythmia originating in the distal RBB or MB is a rare entity of unknown underlying reasons, although increased automaticity is the likely mechanism 7, 8, 9, 10, 11, 12, 13. The clinical manifestation suggesting focal VT does not exclude, for example, arrhythmogenic RV cardiomyopathy 1 .…”

“…In this case, confounding multiple VT morphologies were not related to obvious RV structural disease, and catheter ablation appeared the optimal treatment. Yet, the risk of the development of tachycardia-induced cardiomyopathy8, 11, 12, 13 or MB-related VPC-induced idiopathic ventricular fibrillation 7 emphasizes the need for a case-by-case assessment of sudden cardiac death risk and close monitoring before and after ablation in patients with similar arrhythmia.…”