Right ventricular false tendon–originating premature ventricular complexes triggering ventricular tachycardia: Identification and ablation

Ventricular false tendons (FTs) are fibroid or fibromuscular endocavitary structures with significant variation in origin, communication with the ventricular free wall, papillary muscles, and conduction tissue fibers1. Previous studies have demonstrated premature ventricular complexes (PVCs) originated from left ventricular FTs2,3. However, no report is available to show right ventricular false tendons (RV-FTs) as a definitive etiologic role for PVCs during catheter ablation. Herein, we present a case of ventricular tachycardia (VT) and ventricular fibrillation (VF) triggered by RV-FTs originated PVCs, which was identified by intracardiac echocardiogram and, in turn, successfully abolished by radiofrequency ablation.