Abstract

Weerasooriya et al (J Am Coll Cardiol 2011;57:160–166, PMID 21211687) evaluated the long-term efficacy of catheter ablation of atrial fibrillation (AF). One hundred patients undergoing first AF ablation (63% paroxysmal; 3.5 ± 1.4 prior ineffective antiarrhythmic agents) were followed for 5 years. Complete success was defined as absence of any AF or atrial tachycardia recurrence (clinical or by 24-hour Holter monitoring) lasting ≥30 seconds. Arrhythmia-free survival rates after a single catheter ablation procedure were 40%, 37%, and 29% at 1, 2, and 5 years, respectively, with most recurrences over the first 6 months.

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