Ablation Index Guided High Power Ablation for Pulmonary Vein Isolation in Patients With Atrial Fibrillation

The investigators will compare the ablation time during pulmonary vein isolation of Ablation Index-guided high power ablation with those with conventional ablation. Ablation time of conventional group will be used from OPTIMUM study. For secondary outcomes, acute outcomes of pulmonary vein isolation using two different strategies will be compared. During 1 year of follow-up in both groups, atrial fibrillation recurrence will be evaluated. The atrial fibrillation recurrence rate at 1 year after pulmonary vein isolation will be compared between the two groups. In addition, fluoroscopic time, procedure time, and complication rates for the high power ablation group will be compared with those with conventional power.