最大ST/HR斜率诊断冠心病的临床价值

The Diagnostic Value of the Maximum ST/HR Slope to Detect Coronary Disease

对稳定型心绞痛病人和正常人各41例行踏车试验,各项参数用自编程序处理。冠心病最大ST/HR斜率4例正常,37例(90、2%)异常,对照组39例正常,2例(4、9%)异常。稳定型心绞痛者斜率>6.0μv/bpm表示冠脉严重病变者占19.5%。最大ST/HR斜率的敏感性和特异性分别为90.2%和95.1%、均较ST标准为高、对冠心病具有较好的诊断价值。

Argometer testing was performed in 41 patients with stable angina and 41 healtgy controls. The indexes were calculated by computer programmed by auther, with the maximtm ST/HR slope in stable angina group, 4(9,8%) cases were-normal and 37(90.2%) cases were abnomal.On the other hand,39(95,1%) were normal and 2 (4.9%) were abnormal in healthy controls. The maximum ST/HR slope>6.0μv/bpm suggested. serious coronary narrow. In this study, 19.5 percent patients with stable amginal were>6.0μv/bpm. The seneitivity and specificity of the maximum ST/HR slope detecting coronary artery were 90.2% and 95.1% respectively.