老年医学与保健2025，Vol.31Issue(3)：663-667,5.
老年急性心肌梗死患者心电图定位与冠状动脉造影梗死相关血管的关系
Relationship between electrocardiogram localization and infarct-related blood vessels detected by coronary angiography in eld-erly patients with acute myocardial infarction
摘要
Abstract
Objective To investigate the relationship between electrocardiogram(ECG)and infarct-related blood ves-sels detected by coronary angiography(CAG)in elderly patients with acute myocardial infarction(AMI).Methods A total of 102 elderly AMI patients who underwent percutaneous coronary intervention in Zigong First People's Hospital from March 2021 to March 2024 were selected as the research subjects.All of them underwent ECG and CAG examinations,and examina-tion results were analyzed.The application value of ECG in the diagnosis of infarct-related blood vessels detected by CAG was evaluated.Results Taking CAG examination as the gold standard,in this study,there were 71 patients with right coronary ar-tery(RCA)infarction and 31 ones with left circumflex artery(LCA)infarction.The sensitivity of diagnosing infarcted vessels as RCA based on ST segment depression in lead Ⅰ,ST segment depression in lead aVL,ST segment depression in both lead Ⅰ and aVL,and ST segment depression in both lead V5 and V6 were 83.10％,77.46％,77.46％,and 56.34％,respectively;the specificity were 70.97％,67.74％,70.97％,77.42％,respectively;the accuracy rates were 79.41％,74.51％,75.49％,62.75％,respectively;the positive predictive values were 86.57％,84.62％,85.94％,85.11％,respectively;the negative predictive values were 64.71％,56.76％,57.89％,43.64％,respectively.The sensitivities of diagnosing infarcted vessels as LCA based on non-ST-segment depression in leads Ⅰ and aVL and ST segment elevation in leads V5 and V6 were 67.74％and 74.19％,respectively;the specificity were 88.73％and 57.75％,respectively;the accuracy rates were 82.35％and 62.75％,respectively;the positive predictive values were 72.41％and 43.40％,respectively;the negative predictive values were 86.30％and 83.67％,respectively.Conclusion Among the indicators for predicting RCA lesions in ECG,the sensitivi-ty of ST segment depression in lead Ⅰ is the highest.Among the indicators for predicting LCA lesions,the specificity of ST segment depression in both lead Ⅰ and aVL is the highest.关键词
老年/急性心肌梗死/梗死相关血管/心电图/冠状动脉造影Key words
elderly/acute myocardial infarction/infarct-related blood vessel/electrocardiogram/coronary angiography引用本文复制引用
钟婷婷,曹文斋,刘蓉华..老年急性心肌梗死患者心电图定位与冠状动脉造影梗死相关血管的关系[J].老年医学与保健,2025,31(3):663-667,5.基金项目
2023年自贡市重点科技计划项目(2023RKX01-02) （2023RKX01-02）
四川卫生康复职业学院2024年校级科研团队(CWKY-TD24-10) （CWKY-TD24-10）
