The efficacy and safety of cryoballoon catheter ablation in patients with paroxysmal atrial fibrillation.

Background: Electrical isolation of pulmonary vein ostia is an established therapy for paroxysmal atrial fibrillation.

Aims: The purpose of this study is to evaluate the long-term efficacy and safety of cryoballoon catheter ablation in paroxysmal atrial fibrillation with normal anatomy of the left atrium.

Methods: Two hundred fifteen consecutive patients were included in the study (from November 2014 to November 2016).

Prediction of arrhythmia recurrence after atrial fibrillation ablation in patients with normal anatomy of the left atrium.

Background: Enlarged left atrium is an established predictor of atrial fibrillation recurrence after pulmonary vein isolation but arrhythmia recurrence is also observed in patients with normal anatomy of the left atrium. The aim of the study is to evaluate arrhythmia recurrence predictors in patients with normal anatomy of the left atrium.

Methods: The study included 182 patients with normal anatomy of the left atrium who underwent pulmonary vein isolation using catheter ablation.