摘要
目的 评价运动心电图试验心率校正的ST段改变在老年人冠心病临床诊断中的意义。方法 61例老年冠心病患者 (冠心病组 )和 47名健康老年人 (对照组 )按Bruce改良方案进行运动平板试验 ,测定受试者心率校正的ST段值 (最大ST/HR斜率 )和ST段压低值。结果 最大ST/HR斜率对冠心病诊断的敏感性 (94% )和特异性 (96% )均优于普通运动心电图试验 (分别为65 % ,76% ) ,两组比较差异有显著性 (P <0 .0 5 ) ;冠心病组的最大ST/HR斜率为 (2 .8± 1.5 ) μV/bpm ,对照组的ST/HR斜率为 (0 .7± 1.1) μV/bpm ,两组比较差异有非常显著性 (P <0 .0 1) ;参照冠脉造影的结果 ,其提示 1～ 2支血管病变的敏感性为 80 %、特异性为 85 % ;提示 3支血管病变的敏感性为 88%、特异性为 78%。结论 心率校正的ST段改变对诊断冠心病有重要价值 ,其敏感性、特异性均明显高于普通运动试验 。
Objective To evaluate the application of detecting elderly patients with coronary artery disease by heart rate adjustment of ST segment depression in the EET.Methods 61 elderly patients with coronary artery disease (CAD group) and 47 healthy elder (control group) were received treadmill exercise electrocardiography tests under bruce protocol. Heart rate adjustment of ST segment depression ( maximal ST/HR slope) and ST segment depression were detected on each person.Results The sensitivity (94%) and specificity(96%) of diagnosis of CAD by maximal ST/HR slope were significant higher than common EET( P <0.05). The maximal ST/HR slope was (2.8±1.5)μV/bpm in CAD group and( 0.7±1.1)μV/bpm in control group, there were significant difference between two groups( P <0.01). In accordance with coronary arteriongraphy, the sensitivity and specificity of diagnosis of the diseased coronary artery vessels were 80% and 85% in 1～2 branchs,were 88% and 78% in 3 branchs.Conclusion There is important value in diagnosis of CAD by heart rate adjustment of ST segment depression, whose sensitivity and specificity are significant higher than common EET and it can be the extent of myocaridal ischemia in some degree.
出处
《临床内科杂志》
CAS
北大核心
2002年第S1期58-60,共3页
Journal of Clinical Internal Medicine
关键词
运动心电图试验
冠状动脉疾病
ST/HR斜率
Exercise electrocardiographic testing
Coronary artery disease
ST/HR slope
