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据报道Lown于1962年开创的直流电复律可使90%的慢性房颤和97%的慢性房扑病人复律。尽管预防性应用抗心律失常药物,复律后1年内仅20～60%的病人维持窦性心律。作者前瞻性研究在大组病人中直流电复律的即刻和长期疗效以及影响疗效的因素。方法1986年2月至1989年6月间,302例慢性房颤和房扑病人转来复律,56例因故剔除。其余191例房颤和55例房扑病人择期进行直流电复律,此前,心律失常已有0.04
Lown’s DC cardioversion was reported in 1962 to cause 90% of chronic atrial fibrillation and 97% of patients with chronic atrial flutter. Despite the prophylactic use of anti-arrhythmic drugs, only 20 to 60% of patients within 1 year after cardioversion maintain sinus rhythm. The authors prospectively investigated the immediate and long-term efficacy of DC cardioversion in large groups of patients and the factors that influence the efficacy. Methods Between February 1986 and June 1989, 302 patients with chronic atrial fibrillation and atrial flutter were referred for cardioversion and 56 were removed for some reason. The remaining 191 cases of atrial fibrillation and 55 cases of atrial flutter patients elective cardioversion, after the arrhythmia has been 0.04