PMID: 7677555Sep 25, 1995Paper

Treatment of resistant atrial fibrillation. A meta-analysis comparing amiodarone and flecainide

Archives of Internal Medicine
D G ZarembskiA C Caruso


Chronic atrial fibrillation (AF) is a common arrhythmia with significant morbidity and mortality. Maintenance of normal sinus rhythm (NSR) can be achieved with antiarrhythmic drug therapy. The antiarrhythmic effects of amiodarone hydrochloride and flecainide acetate in patients with resistant chronic AF have been investigated separately in several small studies. This investigation compared amiodarone to flecainide in maintaining NSR in patients with resistant chronic AF. Studies using amiodarone or flecainide in the treatment of patients with chronic AF refractory to class I antiarrhythmic drugs or sotalol hydrochloride were identified. The results of six trials of amiodarone (200 to 400 mg/d, 315 patients) and two trials of flecainide (200 to 300 mg/d, 163 patients) were aggregated using meta-analytic techniques. The percentages of patients taking amiodarone or flecainide and remaining in NSR at 3 and 12 months were compared relative to results for quinidine, which were acquired from a meta-analysis of quinidine used as first-line therapy for AF. After 3 and 12 months of treatment with amiodarone, 217 (72.6%) of 299 patients and 64 (59.8%) of 107 patients, respectively, remained in NSR. These percentages were significantly gre...Continue Reading


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