Electrophysiological Identification and Ablation of Left Lateral Pathways in the Medial-Distal Coronary Venous System

The most common form of an epicardial accessory pathway (AP) has been reported to result from a connection between an extension of the coronary sinus myocardial coat (CSMC) along the middle cardiac vein, posterior coronary vein, or neck of a CS diverticulum [(1)][1]. To our knowledge, only rare