平板运动试验ST段压低恢复时期的假阳性表现

目的：对照平板运动试验与冠状动脉造影结果．探讨影响运动试验正确诊断冠心病的因素，从而提高冠心病诊断的准确性。方法：选择资料完整的156例行平板运动试验与冠状动脉造影的患进行结果对照。观察运动引起ST改变与冠状动脉造影之间的联系。结果：156例平板运动试验敏感性77％，特异性30％，假阳性率36％，其中36例女性平板运动试验敏感性71％，特异性27％．假阳性率61．5％。在42例假阳性患中，26例ST段压低在恢复期即刻恢复至原来状态。绝大多数女性运动试验假阳性ST段压低均在恢复期即刻恢复至原来状态。结论：平板运动试验是检测冠心病的有效方法。在平板运动试验中假阳性患大半数ST段压低在恢复期即刻恢复，提示假阳性与女性及ST段压低在恢复期即刻恢复有关。

Analysis of False Positive on Treadmill Exercise Testing ST Segment Depression Recover Time

Objective:To increase the diagnosis of coronary heart disease by comparing treadmill exercise testing and coronary angiography results.Methods:Data of 156 patients were collected,and the treadmill exercise testing and coronaryangiography results were compared in order to explore the relationships between ST segment depression and angiography.Results:The sensitivity ,specificity and the false positive rate of exercise testing to pre dict CAD was 77%,30% and36%,respectively.And the sensitivity ,specificity and the false positive of exercise testing to predict CAD in female was 71% , 27% and 61.5%,respectively; Of the 42 patients with false positive, 26,including almostall femal patients,ST segment depressions recovered at cool down time.Conclusion:Tredmill exercise testing was aneffective method for diagnosis of CAD, but the false positive showed relationships with females and ST segment depression recover at cool down time.