实用心电与临床诊疗2025，Vol.34Issue(2)：204-207,4.DOI:10.13308/j.issn.2097-5716.2025.02.010
动态心电图QTc联合ST段对冠心病患者心肌缺血发作的诊断价值
Diagnostic value of QTc in ambulatory electrocardiography combined with ST-segment on myocardial ischemic attack among patients with coronary heart disease
于晓磊 1李艾红1
作者信息
- 1. 476000 河南 商丘,商丘市第四人民医院心电图科
- 折叠
摘要
Abstract
Objective To explore the diagnostic value of QTc in 12-lead ambulatory electrocardiography(AECG)combined with ST-segment on myocardial ischemic attack among patients with coronary heart disease(CHD).Methods Eighty-five patients with CHD underwent 12-lead AECG examination.Based on the coronary angiography as the gold standard,the detection rate of myocardial ischemia and the diagnostic efficiency of each index were statistically calculated.Kappa test was used to verify the consistency between diagnostic results by different indexes and the results by the gold standard.Results Fifty cases of myocardial ischemic attack were detected in 85 patients with CHD by the gold standard.Among these 50 patients,44 positive cases(88.00%)were detected by QTc examination,45 positive cases(90.00%)were detected by ST-segment examination,and 49 positive cases(98.00%)were detected by the combined examination of QTc and ST-segment.The sensitivity and accuracy rate of the combined examination for diagnosing myocardial ischemic attack in CHD patients were significantly higher than those of QTc or ST-segment used alone;and its negative predictive value was also significantly higher than that of QTc examination(all P<0.05).Kappa test showed that the Kappa values of QTc and ST-segment examinations,and the combined examination were separately 0.716,0.738 and 0.927,indicating their consistency with the diagnostic results of the gold standard;and the consistency of the combined examination significantly increased.Conclusion The combined examination of QTc and ST-segment could significantly increases the diagnostic efficiency of myocardial ischemic attack among CHD patients.关键词
冠心病/心肌缺血/动态心电图/诊断价值Key words
coronary heart disease/myocardial ischemia/ambulatory electrocardiography/diagnostic value分类
医药卫生引用本文复制引用
于晓磊,李艾红..动态心电图QTc联合ST段对冠心病患者心肌缺血发作的诊断价值[J].实用心电与临床诊疗,2025,34(2):204-207,4.
