High-Power, Short-Duration Ablation in Treatment of Patients With Atrial Fibrillation

Group 1 (n=95): pulmonary vein isolation for treatment of atrial fibrillation was performed with power of 50 watts in Ia subgroup (n=55) AI (ablation index) was 400-450 arbitrary units (au) for the posterior wall and 500-550 au for the anterior wall, in Ib (n=40) AI was 400-450 au for the posterior wall and 450-500 au for the anterior wall.

Group 2 (n=90): Pulmonary vein islolation was performed at a power of 45 watts, in IIa subgroup (n=50) with target AI of 400-450 au for the posterior wall and 500-550 au for the anterior wall in IIb (n=40) AI of 400-450 au for the posterior wall and 450-500 au for the anterior wall.