Recurrence of all atrial arrhythmias
All 3 studies reported recurrence of all atrial arrhythmias (AF, atrial flutter, and atrial tachycardia). Recurrence occurred in 97 of 325 (30%) patients who underwent PVI+PWI and 141 of 272 (52%) patients who underwent PVI alone. Our meta-analysis revealed that the PVI+PWI group was associated with a significantly lower recurrence of all atrial arrhythmias as compared to the PVI group (RR 0.57; 95% CI, 0.47-0.70, p < 0.00001) (Figure 2 ). In other words, there was a 43% reduction in the recurrence risk of any type of atrial arrhythmia in the PVI+PWI group with 0% heterogeneity among studies I2 = 0% .