【摘要】 目的 对心肌梗死并发室性早搏患者进行实性心律震荡现象分析，探讨室性早搏伴或不伴有室房逆传对窦性心律震荡现象是否存在影响。方法 回顾性分析99例心肌梗死并发室性早搏患者的24h动态的心电图，分为室性早搏伴室房逆传(A组)与不伴室房逆传(B组)两组进行对比，观察一个单纯的室性早搏后窦性周期长度的短期波动特征，采用震荡初始(TO)与震荡斜率(TS)的特定公式做定量计算与分析，两组TO小于0或TS大于2.5ms/RR间期用χ 2 检验。结果 两组对照:TO<0差异无显著性(χ 2 =1.08，P>0.05)，TS>2.5ms/RR间期，差异有非常显著性(χ 2 =12.3，P<0.01)。结论 本文结果揭示应用窦性心律震荡检测指标TO、TS对心肌梗死后猝死高危患者的检测中，应重视室性早搏伴室房逆传对TS值可能产生的影响。

    关键词 窦性心律震荡 室房逆传 心肌梗死

    【Abstract】 Objective To investigate the influence of ventricular premature with or without ventrioatrial conˉduction on sinus rhythm turbulence phenomenon by analyzing sinus rhythm turbulence phenomenon of patients with myocardial infarction and ventricular premature.Methods Retrospective analysis of24hours ambulatory electrocarˉdiography was performed on99myocardial infarction patients with ventricular premature.We divided the99patients into2groups and made a comparison:group A were ventricular premature patients with ventrioatrial conduction ......