Ablation of incessant ventricular tachycardia by epicardial approach. A case report

A ventricular tachycardia (VT) is relentless when it persists longer than 24 hours despite completing treatment with at least two antiarrhythmic drugs, electrical cardioversion (CEV) or overstimulation. It is a dramatic clinical situation, with high mortality. Catheter ablation endocardial using radio frequency is the treatment of choice, although it is a highly complex and procedure with a success rate of between 45% and 75% in different publications. One reason for these results, sometimes discouraging of endocardial ablation, is that circuits of re-entry, basic mechanism of this arrhythmia, often are subepicardicos. We present a case of incessant TV referred to our service in which an epicardial ablation was performed.