新近发生的房颤常能自动转复至窦性心律。本研究以随机、双盲对照方式在新近发生的 AF(30min≤历时≤72h,心室率≥120次/分钟)病人中比较了氟卡胺和安慰剂的治疗效果。严格筛选102例病人参加本研究。试验分两组进行:A 组氟卡胺(2mg/kg,最高剂量150mg)+地高辛,B 组安慰剂+地高辛(两组均静注0.5mg)。试验药物在30 Recent atrial fibrillation can often be automatically transferred to sinus rhythm. This study compared the efficacy of flecainide and placebo in patients with newly diagnosed AF (30 min ≤ duration ≤ 72 h, ventricular rate ≥ 120 bpm) in a randomized, double-blind, controlled manner. Strict screening of 102 patients participated in this study. The trial was divided into two groups: fkacarb in group A (2 mg / kg, maximal dose 150 mg) + digoxin, and placebo + digoxin in group B (0.5 mg intravenously in both groups). Test drug at 30