【摘要】 对二尖瓣球囊扩张成形术后心房颤动（Ａｆ）同步直流电复律２０例患者的复律过程进行观察和随访，探讨复律的影响因素及窦性心律的维持。结果表明：复律时出现心律失常组的年龄（４３．４±３．１岁）、Ａｆ持续时间（５０．７±１６．８月）、心瓣膜病程（１６０．７±３０．２月）、左房内径（４８．２±７．３ｍｍ）等均高于未出现心律失常组（依次为：３４．７±４．５岁、２１．６±１０．２月、１０１．５±２３．５月、４２．１±４．５ｍｍ），Ｐ＜０．０５。经逐步回归分析发现复律放电能量与病人年龄、Ａｆ持续时间、转复时心率、左房内径等因素有关。复律时除应注意上述影响因素外，还应适当调整放电能量以使复律易于成功。对窦性心律的维持认为以口服胺碘酮效果较好更多还原

【Abstract】 The effect of cardioversion of atrial fibrillation (Af) following percutaneous transseptal balloon mitral valvuloplasty was observed during 6 months of follow up in 20 patients with rheumatic heart disease for exploring the factors in cardioversion.The results showed that age (43.4±3 1 years old vs 34 7±4 5 years old),duration of Af(50 7±16 8 months vs 21 6±10 2 months),the time length of heart valve disturbance(160 7±30.2 months vs 101.5±23.5 months) and the calibre of left atrium (48.2±7.3 mm vs 42.1±4.5 mm) were all higher or longer in the group with arrhythmia following cardioversion than those in the group without it (all P <0.05).After multiple regression analysis,it was noted that the discharging energy used in cardioversion was related to those factors such as age,duration of Af,arrhythmia following cardioversion and the calibre of left atrium.These suggest that the discharging energy should be adjusted according to those effective factors in cardioversion and the administration of Amiodarone should be quite effective in maintenance of sinus rhythm.更多还原