Epicardial Ablation of Supraventricular Tachycardia.

Epicardial catheter-based mapping and ablation of a variety of supraventricular tachycardias is feasible, safe, and effective. Supraventricular tachycardia substrates are not uncommonly epicardial, and approaches with percutaneous epicardial instrumentation or via the epicardial venous structures, such as the coronary sinus, are becoming more widely accepted. These techniques are an important treatment option as an alternative to a more invasive surgical approach or to allowing patients to suffer from an ongoing arrhythmia. New technologies and innovative techniques are being developed that hold great potential to improve the efficacy and safety of the epicardial catheter-based approach to these challenging arrhythmias.