十二导联动态心电图中ST段压低与冠状动脉造影结果的关系

Relationship of 12-lead Holter ST-Segment Depression and the Result of Coronary Angiography

目的评价十二导联动态心电图ST段异常对冠心病的诊断价值。方法观察60例先后行十二导联动态心电图和冠状动脉造影术检查的患者,前者阳性标准为两个相邻导联的ST段水平型或下斜型下移,在J点后80ms处压低≥1mm(0.1mV)持续60ms以上;后者阳性标准为血管狭窄较相邻管径≥50%。结果在32例56支阳性血管中有39支血管相应的Holter导联ST达到阳性标准,其阳性率为69.6%,与造影比较,阳性率的差异有显著性意义(P<0.05)。在35例冠状动脉狭窄<50%的患者中有9例ST段达到阳性标准,其假阳性率为25.7%。结论十二导联心电图对冠心病的诊断具有重要价值,特别是对老龄和严重的冠心病患者。

Aim To evulate the value of 12-lead holter in the diagnosis of coronary artery diseases.Method 60 cases were assessed by 12-lead holter and coronary angiography. Postive standard of 12-lead holter was ST-segment horizontal or downward sloping depression of greater than 1mm （0.1 mV） at least 60 ms after the J point 80 ms in near two leads. Postive standard of coronary angiography was stenosis of coronary artery diaometer reduction more than 50 percent than near normal vessel. Results ST-segment horizontal or downward sloping depression of 56 branches stenosis in 32 eases roaches postive standard, postive rate is 69.64% （P〈0.05）. In 35 branches of stenosis diameter is lower than 50% ,only 9 cases ST-segment horizontal or downward sloping depression reaches postive standard, false postive rate is 25.7%, Conclusions 12-lead holter has an important value in diagnosis coronary artery disease,espically in aging and severn coronary artery disease.