Circulation. Arrhythmia and electrophysiology
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Circ Arrhythm Electrophysiol · Jun 2012
Comparative StudyClinical outcome of catheter ablation in patients with nonparoxysmal atrial fibrillation: results of 3-year follow-up.
Catheter ablation of atrial fibrillation (AF) became an effective therapy for patients with drug-refractory AF, and the indications have broadened to include nonparoxysmal AF patients. However, data about the long-term effectiveness of ablation in patients with nonparoxysmal AF are lacking. The aim of the present study was to investigate the long-term outcomes of catheter ablation in patients with nonparoxysmal AF. ⋯ The long-term recurrence-free rate of ablation in nonparoxysmal AF was only 28.4% after a single procedure, and multiple procedures were necessary to raise the recurrence-free rate. The CHADS2 score and LA dimension may help us to identify patients who will have recurrences after catheter ablations of nonparoxysmal AF.