慢性心房颤动（CAF）是一种严重病症，对心房颤动（AF）复律的主要药物仍然是奎尼丁。据报道，口服胺碘酮（amiodarone）对CAF的转复率达86％，静脉注射胺碘酮治疗各种房性心律失常（包括心脏手术后AF），12小时内的转复率达55．5％。本研究旨在比较静脉注射胺碘酮与口服奎尼丁 Chronic atrial fibrillation (CAF) is a serious condition and quinidine is still the mainstay of cardioversion of atrial fibrillation (AF). It has been reported that oral administration of amiodarone resulted in a 86% recovery of CAF and intravenous amiodarone for various atrial arrhythmias (including post-cardiac AF) with a reversion rate of 55 within 12 hours. 5%. This study aimed to compare intravenous amiodarone with oral quinidine