川北医学院学报2025，Vol.40Issue(6)：755-758,4.DOI:10.3969/j.issn.1005-3697.2025.06.016
心电图QTc及相关指标对非ST段抬高型心肌梗死患者预后的评估价值
Prognostic value of QTc in electrocardiogram and related indicators in pa-tients with non-ST-segment elevation myocardial infarction
摘要
Abstract
Objective:To analyze the prognostic value of QTc in electrocardiogram and related indicators in patients with non-ST-segment elevation myocardial infarction(NSTEMI).Methods:106 patients with NSTEMI were selected as the research subjects.They were divided into poor prognosis group(n=41)and good prognosis group(n=65)according to the prognosis at 3 months after treatment.Univariate or multivariate Logistic regression analysis was conducted to identify factors affecting the prognosis of NSTEMI pa-tients,the ROC curve analyzed the prognostic value of dynamic electrocardiogram indicators for NSTEMI patients.Results:Univariate a-nalysis showed that the levels of creatine kinase isoenzyme and cardiac troponin T,QRS duration,corrected QT(QTc)interval,the pro-portions of ST-segment depression and T wave flattening or inversion in the good prognosis group were lower and shorter than those in the poor prognosis group(P＜0.05).Multivariate Logistic regression analysis showed that creatine kinase isoenzyme,QRS duration,QTc interval,the proportion of ST-segment depression,and T wave flattening or inversion were independent prognostic factors for pa-tients with NSTEMI(P＜0.05).ROC curve analysis showed that the areas under the curve(AUC)of QRS duration,QTc interval,the proportion of ST-segment depression,and T wave flattening or inversion for prognosis evaluation of patients with NSTEMI were 0.832,0.827,0.634,and 0.690.The AUC of combined use of the four was the largest,which was 0.922.Conclusion:QTc,QRS,ST-segment depression,and T wave flattening or inversion on electrocardiogram all can be used to evaluate short-term prognosis of NSTEMI.Be-sides,combined use of them can achieve better evaluation results.关键词
非ST段抬高型心肌梗死/预后/QTc/QRS/ST段压低/T波低平或倒置Key words
Non-ST-segment elevation myocardial infarction/Prognosis/QTc/QRS/ST-segment depression/T wave flattening or inversion分类
医药卫生引用本文复制引用
于海珍,何鑫宇,白雄心..心电图QTc及相关指标对非ST段抬高型心肌梗死患者预后的评估价值[J].川北医学院学报,2025,40(6):755-758,4.基金项目
陕西省科学技术研究发展计划项目(2018K25313) （2018K25313）
