Elimination of epicardial late potentials by endocardial ablation in arrhythmogenic right ventricular cardiomyopathy

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  Figure 1. Left: clinical characteristics of the included patients. Center: Procedural characteristics, including epicardial and endocardial scar and late-potential extent, and endocardial ablation index values associated with epicardial LP suppression according to the targeted right ventricular region. Right: Representative example of epicardial late-potential elimination, recorded with a multielectrode mapping catheter (PentaRay™, Biosense Webster), achieved by endocardial ablation. Abbreviations: AI = ablation index; ATP = antitachycardia pacing; ICD = implantable cardioverter-defibrillator; LP = late potential; LVEF = left ventricular ejection fraction; PVC = premature ventricular contraction; RV = right ventricle; RVEF = right ventricular ejection fraction; RVOT = right ventricular outflow tract; VT = ventricular tachycardia.