Can an Endocardial Arrhythmogenic Substrate Predict the Need for Epicardial Radiofrequency Ablation in Arrhythmogenic Right Ventricular Cardiomyopathy?

Objectives: This study investigated the correlation between endocardial substrate and requirement for epicardial radiofrequency ablation (RFA) of ventricular tachycardia (VT) in arrhythmogenic right ventricular cardiomyopathy (ARVC). Methods: 25 patients (18 male; aged 43±17; range 15 to 78 years) with ARVC undergoing RFA were included. Arrhythmogenic substrate was defined as an area with an amplitude