Abstract:

Objective　To explore the diagnostic value of treadmill exercise test (TET) combined with resting electrocardiogram (ECG) in the assessment of coronary heart disease (CHD). Methods　A total of 100 suspected CHD patients admitted to Yantai Mountain Hospital from January 2020 to January 2023 were included in the study, with an age of 32-75 (52.43±2.18) years old and a body mass index of (23.55±1.87) kg/m². Using the diagnosis result of coronary angiography (CAG) as the "gold standard", all patients underwent resting ECG and TET. The diagnostic efficacies of ECG, TET, and ECG combined with TET in CHD were compared. χ² test was used. Results　The ECG results showed 65 positive cases, 35 negative cases, and 6 misdiagnoses. The TET results showed 72 positive cases, 28 negative cases, and 4 misdiagnoses. TET was found to be more accurate than ECG and be closer to the CAG diagnostic results. When combining ECG and TET, the results showed 76 positive cases, 24 negative cases, and 2 misdiagnoses. The combination of ECG and TET was more accurate than ECG or TET alone, and had better consistency with the CAG diagnostic results. The area under the curve (AUC) for the combination of ECG and TET was 0.913, with a sensitivity of 92.50% and a specificity of 90.00%, both of which were higher than the results for ECG and TET individually. Conclusion　The combination of resting ECG and TET offers good diagnostic value in the assessment of CHD.

Key words:

Treadmill exercise test, Resting electrocardiogram, Coronary heart disease, Diagnosis, Prognosis

摘要：

目的　探究平板运动试验（TET）与静息心电图（ECG）联合评估对冠心病的诊断价值。方法　选取2020年1月至2023年1月烟台市烟台山医院纳入的100例疑似冠心病患者作为研究对象，年龄32～75（52.43±2.18）岁，体质量指数（23.55±1.87）kg/m²。以冠状动脉造影（CAG）诊断结果作为“金标准”，对所有患者实施静息ECG检查和TET，比较分析静息ECG、TET及静息ECG联合TET在冠心病中的诊断效能。采用χ²检验。结果　静息ECG检查表明，65例阳性、35例阴性、6例误诊；TET检查表明，72例阳性、28例阴性、4例误诊；TET检查比静息ECG检查更准确，更靠近CAG诊断结果。静息ECG联合TET检查结果表明，76例阳性、24例阴性、2例误诊；静息ECG联合TET检查比TET、静息ECG单项检查更准确，与CAG诊断结果一致性较好。静息ECG联合TET检查的曲线下面积（area under the curve，AUC）为0.913，灵敏度为92.50%，特异度为90.00%，均高于静息ECG、TET单独诊断结果。结论　TET与静息ECG联合对评估冠心病有着良好的诊断价值。

关键词:

平板运动试验, 静息心电图, 冠心病, 诊断, 预后