动态心电图监测室上性早搏ST段下移的临床价值探讨

Clinical value of dynamic electrocardiogram in the detection of ST segment shifting downward of supraventricular premature beat

目的:探讨动态心电图监测室上性早搏ST段下移对冠心病的诊断意义和价值。方法:对158例临床诊断为冠心病的患者分为观察组及对照组136例进行Holter检查。结果:观察组室上性早搏的STx、STx-S阳性变化与对照组之间差异有统计学意义(P<0.01),诊断冠心病的敏感性分别是63.9%和62.0%。结论:Holter检出室上性早搏的ST段水平下移或下斜型下移≥0.1mv或上斜型下移≥0.2mv;STx-S>0.5mv用于诊断冠心病有一定临床辅助价值。

Objective：To investigate the significance and value of ST segment shifting downward of supraventricular premature beat to the diagnosis of coronary heart disease（CHD） in dynamic eleetrocardiogram（ECG）.Methods：158 patients with CHD diagnosed by clinic and 136 normal controls were examined by Holter. Results：The positive changes of STx and STx-s in the CHD group showed significant difference from thos in the control group （P〈0.01）. The diagnostic sensitivity of STx and STx-s for CHD was 63.9% and 62.0% respectively. Conclusion：The extents of ST segment shifting downward of supraventrieular prmature beat in horizontal type or inferio-oblique type≥0.1 my or supra-oblique≥0.2 mv;STx〉0.5 my detected by Holier have a certain clinical value in the assisted diagnosis of CHD.