Double Trouble Within The Coronary Sinus: What Is The Mechanism?

A 67-year old man was referred to our institution for catheter ablation of symptomatic left atrial tachycardia (LAT) occurring 12 months after pulmonary vein isolation (PVI) in the setting of paroxysmal atrial fibrillation (AF). The procedure was carried out under general anesthesia. A 6F decapolar catheter was inserted at first within the coronary sinus (CS) through the right femoral vein. This article is protected by copyright. All rights reserved.