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目的心电图负荷测验中R波振幅变化与ST段压低的比较。方法对174例运动测验采用R波振幅变化的标准,并与ST段标准的结果进行对比。结果△R、△RST、ΣR标准在冠心病及可疑冠心病组的阳性率和在正常组的阴性率均高于ST段标准。结论当其分别与ST段标准结合时,可显著提高冠心病的阳性检出率和正常组的阴性符合率。
Objective To compare the changes of R wave amplitude and ST depression in ECG load test. Methods 174 cases of exercise test using R wave amplitude changes in the standard, and compared with the ST segment standard results. Results The positive rate of △ R, △ RST and ΣR in coronary heart disease and suspected coronary heart disease group and the negative rate in normal group were higher than those in ST segment. Conclusion When combined with ST segment criteria respectively, the positive detection rate of coronary heart disease and normal control group can be significantly improved.