Eiji Nyuta, Masao Takemoto, Togo Sakai, Takahiro Mito, Akihiro Masumoto, Wataru Todoroki, Keishiro Yagyu, Jiro Ueno, Yoshibumi Antoku, Tokushi Koga, Takafumi Ueno, Takuya Tsuchihashi
Background: Pulmonary vein (PV) antrum isolation (PVAI) has proven to be a useful strategy for radiofrequency catheter ablation (RFCA) of atrial fibrillation (AF) worldwide. However, non-PV foci, especially from the superior vena cava (SVC), play an important role in initiating and maintaining AF. Methods: In all, 427 consecutive patients with non-valvular AF who were admitted to our hospitals to undergo RFCA of AF using an EnSite™ system were evaluated. The length from the top of the sinus node to the top of the myocardial sleeve of SVC (L-SVC), longer and shorter diameter of SVC of 1 cm above of junction of right atrium and SVC, and local activation time (LAT) of SVC were measured...
February 2021: Journal of Arrhythmia