FIRE or ICE for paroxysmal atrial fibrillation?—perspectives from the largest randomized evaluation of cryoballoon and radiofrequency ablation to date

For patients with symptomatic paroxysmal atrial fibrillation (PAF), radiofrequency (RF) catheter ablation is now a common procedure worldwide and its cornerstone is the point-by-point electrical isolation of the pulmonary veins (PVI) (1).