The second generation cryoballoon has improved durable isolation of left but not right pulmonary veins: new insights from a multicentre study

Pulmonary vein isolation (PVI) using second-generation cryoballoon (CB2) is associated with improved outcomes compared with first generation (CB1). We aimed at investigating the characteristics of left and right PV reconnections after CB1 and CB2 ablations in patients with clinical recurrences requiring redo ablation.From 2010 to 2016, 776 patients underwent 28-mm cryoballoon PVI for symptomatic paroxysmal atrial fibrillation (AF) in 3 centres,...