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Epicardial Ventricular Tachycardia

#Epicardial_Ventricular_Tachycardia #Epicardial_VT Description at: https://johnsonfrancis.org/profession... Discussion on epicardial ventricular tachycardia. Most ventricular tachycardias can be approached for catheter ablation endocardialy. But there are a few which needs an epicardial approach. VTs originating from the left ventricular outflow tract is likely to be epicardial and perivascular compared to the right ventricular outflow tract VTs. VTs in non-ischemic dilated cardiomyopathy and those in Chagasic cardiomyopathy are likely to have epicardial origin. Among the ischemic VTs, those in the inferolateral region can have an epicardial origin. Sometimes VTs in arrhythmogenic right ventricular dysplasia can also be epicardial. When a previous attempt at endocardial ablation has failed, it is all the more reason to look for an epicardial focus. Other reasons for trying an epicardial approach are difficulty in accessing the left ventricular cavity as in the presence of a thrombus or a prosthetic valve.