What are the safety, long-term outcomes, and predictors of recurrence after first-line combined endoepicardial ventricular tachycardia substrate ablation in arrhythmogenic cardiomyopathy?
First-line combined endoepicardial VT ablation is effective in arrhythmogenic cardiomyopathy, though left-dominant disease carries a higher recurrence risk and the Bi/Uni-LVA ratio can guide the need for an epicardial approach.
First-line endoepicardial VT substrate ablation achieves good long-term results in AC. Left-dominant AC is associated with an increased risk of recurrence. The Bi/Uni-LVA ratio identifies patients with limited epicardial arrhythmogenic substrate in whom the indication of epicardial approach should be more cautiously assessed.
Berruezo et al. (Wed,) studied this question.