摘要
142例疑诊心绞痛病人接受冠脉造影和平板运动试验。运动后1、3、6min SBP恢复比冠心病组显著高于对照组。SBP恢复比异常者静息CI、SI、EF显著低于正常者而LVEDP与SVR则高于SBP恢复比正常者。SBP恢复比异常检测冠心病的敏感度为67％,特异度90％,准确度75％。当运动试验ST反应正常或可疑时使用该指标,能提高运动试验的敏感度和准确度。异常SBP恢复比的出现是由于运动引起的左心功能受损和体循环血管阻力增加所致。
One hundred and fourty-two patients with suspected ischemic heart disease underwent coronary angiography and treadmill exercise test.The SBP recovery ra-tio ( SBPR ) at 1,3,and 6 min of the recovery period in patients with CAD was significantly higher than those in the control subjects.Of the hemodynamic variables,CI.SI and EF were lower,LVEDP and SVR were higher in patients with abnormal SBPR than those in patients with normal SBPR.The sensitivity of abnormal SBPR for identifying patients with CAD was 68% and the specificity was 90%,the accuracy was 75%. When the ST segment response to exercise is normal or borderline,the index of SBPR can increase the sensitivity and the accuracy for exercise test. The abnormal SBPR appears to be due to exercise-induced impairment of left ventricular function and increase of systemic vascular resistance.
出处
《第一军医大学学报》
CSCD
1993年第2期100-104,共5页
Journal of First Military Medical University
关键词
运动试验
冠心病
诊断
exercise test
coronary artery disease
diagnostic method
