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Impact of the Preprocedural Frequency of Paroxysmal Atrial Fibrillation on the Clinical Outcome after Catheter Ablation

Background:  Pulmonary vein antral isolation (PVAI) is a recommended treatment for symptomatic drug‐refractory paroxysmal atrial fibrillation (PAF). PAF naturally progresses toward persistent AF with an increase in the frequency and duration of AF. The objective of this study was to evaluate whether the preprocedural AF frequency had an impact on the AF recurrence after PVAI in patients with symptomatic PAF.