Recurrence of atrial fibrillation
All 3 studies reported AF recurrences. Recurrence occurred in 63 of 325 (19%) patients were undergoing PVI+PWI arm while 112 of 272 (41%) patients undergoing PVI arm. Our meta-analysis revealed a significant reduction in AF recurrences in PVI+PWI arm when compared to the PVI arm (RR 0.48; 95% CI, 0.36-0.64, p < 0.00001) (Figure 2 ), or a 52% reduction in the risk of AF recurrence with 7% heterogeneity among studies, I2 = 7%.