运动试验恢复期收缩压异常升高对老年冠心病的诊断价值

目的评价运动试验恢复期收缩压异常升高对老年冠心病的诊断价值。方法选择先后行平板运动试验和冠状动脉造影年龄≥60岁的老年患者66例,根据冠状动脉造影结果分冠心病组(36例)和非冠心病组(30例),分析运动试验后6 min内收缩压异常升高值与冠状动脉病变积分的相关性及其对诊断冠心病的价值。结果与冠心病组(318±142)s比较,非冠心病组(446±174)s,运动持续时间明显延长(P0.01);运动后收缩压异常升高与冠状动脉病变程度呈正相关(r=0.638,P0.01);收缩压指标诊断冠心病价值优于ST段压低标准。结论运动后收缩压异常升高可作为诊断老年冠心病的有效指标。

Value of abnormal increase in postexercise systolic blood pressure in diagnosing gerontal coronary artery disease

Objective To evaluate the value of abnormal increase in postexercise systolic blood pressure(SBP) in diagnosing coronary artery disease (CAD) in old patients.Methods Treadmill exercise testing was conducted in 66 patients,who underwent selective coronary angiography. Thirty-six of them had significant narrowing of coronary artery( patients with CAD) ,the other 30 patients served as control subjects.SBP was measured during early period of the recovery phase(6 minutes) after exercise testing.Results The abnormal increase in postexercise SBP had a positive correlation with the extent of coronary artery lesion.SBP index had higher sensitivity,specificity (P < 0.05) and accuracy than those of ST-segment depression for diagnosing CAD in old patients. The combination of ST-segment depression and abnormal increase in SBP improved the specificity of ST segment depression (P < 0.01) in detecting CAD.Conclusion Abnormal increase in postexercise SBP may be a sensitive and specific index for diagnosing gerontal CAD.