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目的研究胺碘酮在房颤(Af)复律后维持窦性心律的疗效与左心房内径(LA)的相关性。方法 75例慢性Af患者,经同步直流电击复律或药物复律后,用胺碘酮200-300mg/d维持治疗,根据左房内径分成三组。A组:LA31-35mm32例;B组:LA36-40mm25例;C组:LA≥41mm18例。观察1年,终点为Af复发。结果窦性心律维持率,A组为81.2%;B组为60.0%(与A组比P<0.01);C组为38.8%(与A组比P<0.01)。结论临床可根据左心房大小预测房颤复发的危险性大小,从而指导房颤的治疗。
Objective To investigate the relationship between the efficacy of amiodarone in maintaining sinus rhythm after atrial fibrillation (Af) cardioversion and left atrial diameter (LA). Methods Seventy - five patients with chronic Af were treated with amiodarone 200-300mg / d by synchronous DC cardioversion or drug cardioversion, and divided into three groups according to left atrial diameter. A group: LA31-35mm32 cases; B group: LA36-40mm25 cases; C group: LA≥41mm18 cases. Observation of 1 year, the end of Af recurrence. Results The maintenance rate of sinus rhythm was 81.2% in group A, 60.0% in group B (P <0.01), 38.8% in group C (P <0.01). Conclusion The clinical prediction of atrial fibrillation according to the size of the size of the risk of recurrence of atrial fibrillation, which guide the treatment of atrial fibrillation.