ENDO-EPICARDIAL VERSUS ENDOCARDIAL-ONLY APPROACH FOR FIRST VENTRICULAR TACHYCARDIA ABLATION: A SYSTEMATIC REVIEW AND META-ANALYSIS OF SAFETY AND EFFICACY OUTCOMES

Background: The efficacy of conventional endocardial catheter ablation for ventricular tachycardia (VT) is limited in a significant proportion of cases by the subepicardial location of scar. Traditionally, percutaneous epicardial mapping and ablation are reserved for patients in whom endocardial