Pulmonary Vein Isolation With Ablation Index via Single Transseptal Crossing: Critical Role of Carina Isolation

Reconnection of the pulmonary veins (PVs) is the most common reason for the recurrence of atrial fibrillation (AF). The ablation index is a marker of ablation lesion quality that achieves high percentages of first-pass isolation and improved AF ablation results. Most operators use a double transseptal approach with confirmation of PV isolation with a circular mapping catheter. In the present study we aimed to show that an ablation index-guided procedure using a single transseptal approach and ablation catheter only would achieve adequate PV isolation while demonstrating the critical role of the carina in PV isolation.

Source: Heart, Lung and Circulation - April 13, 2021 Category: Cardiology Authors: Raphael Rosso, Ehud Chorin, Arie Lorin Schwartz, Yuval Levi, Aviram Hochstadt, Sami Viskin Tags: Original Article Source Type: research