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目的探讨平板运动试验(TET)可疑阳性的原因及如何提高TET对冠心病诊断的准确性。方法选取拟诊为冠心病的54例TET结果为可疑阳性的患者,与其冠状动脉造影(CAG)结果对照分析。结果在54例可疑阳性者中,18例经CAG证实系由于发生冠状动脉狭窄导致出现TET的可疑阳性结果,而其余36例出现TET可疑阳性结果为其他相关疾病引起继发性心电图改变所致。且女性误诊率(83.9%)高于男性(43.5%),差异有统计学意义(P<0.05)。结论在进行TET时,做好试验者的筛选,排除各种可能干扰因素,将结果进行综合分析、判断,是提高其诊断冠心病符合率的重要措施。
Objective To investigate the causes of suspicious positive of treadmill exercise test (TET) and how to improve the diagnostic accuracy of TET in coronary heart disease. Methods Fifty-four patients with suspicious positive TET diagnosed as CHD were selected and compared with coronary angiography (CAG). Results Of the 54 suspicious positives, 18 were confirmed by CAG as having suspected TET suspicious positive results due to coronary stenosis, while the remaining 36 patients had TET suspicious positive results resulting from secondary electrocardiographic changes in other related diseases. And the misdiagnosis rate of female (83.9%) was higher than that of male (43.5%), the difference was statistically significant (P <0.05). Conclusions During TET, screening of test persons and excluding all possible interference factors are carried out. The results of comprehensive analysis and judgment are important measures to improve the coincidence rate of coronary heart disease.