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Pulmonary vein isolation (PVI) is safe and effective in the treatment of atrial fibrillation (AF). We compare and correlate pulmonary vein (PV) reconnection patterns at repeat ablation in patients with recurrent AF after PVI using duty-cycled radiofrequency (RF) technology (PVAC) or second-generation cryoballoon (C with the time of AF recurrence. In total, 85 PVAC and 66 CB patients undergoing a second ablation were enrolled 9.7±3.4months after initial PVI. PV reconnections were comparably high between both groups (93% PVAC and 92% CB pa