The predictive value of changes in T/QRS ratio for high-risk non-ST-elevation myocardial infarction
10.3760/cma.j.cn341190-20240606-00693
- VernacularTitle:心电图T/QRS比值的变化对高危非ST段抬高型心肌梗死的预测价值
- Author:
Xianghua SUN
1
;
Fei YANG
;
Yongli LI
Author Information
1. 宝鸡高新医院心血管内科，宝鸡 721013
- Publication Type:Journal Article
- Keywords:
Acute coronary syndrome;
Non-ST elevated myocardial infarction;
Electrocardiography;
Risk factors;
Regression analysis;
ROC curve
- From:
Chinese Journal of Primary Medicine and Pharmacy
2025;32(2):190-196
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the application value of changes in T/QRS ratio (?T/QRS) in predicting risk stratification for high-risk non-ST-elevation myocardial infarction (NSTEMI).Methods:A total of 158 patients with NSTEMI who received treatment at the Department of Cardiology, Baoji High-tech Hospital, from February 2022 to February 2024 were included in this study. Based on the global registry of acute coronary events score, the enrolled patients with NSTEMI were divided into low-, medium-, and high-risk groups. Baseline data and clinical examination results were collected for all patients, and the clinical outcomes of patients with NSTEMI in different risk stratification groups were compared and analyzed. Spearman correlation analysis was performed to assess the correlation between ?T/QRS and the global registry of acute coronary events score in patients with NSTEMI. Logistic regression analysis was conducted to identify risk factors that influence the severity of NSTEMI. The predictive value of ?T/QRS for high-risk NSTEMI in patients was evaluated using the receiver operating characteristic curve.Results:In patients with NSTEMI from the low-risk, medium-risk, and high-risk groups, the values of ?T/QRS in the inferior and lateral leads increased sequentially [(1.01 ± 0.25) vs. (1.32 ± 0.19) vs. (1.74 ± 0.21), F = 6.10, P < 0.001; (1.01 ± 0.13) vs. (1.36 ± 0.11) vs. (1.66 ± 0.05), F = 5.73, P < 0.001]. Spearman correlation analysis demonstrated a positive correlation between ?T/QRS in the inferior and lateral leads and the global registry of acute coronary events score in patients with NSTEMI ( r = 0.73, P < 0.001; r = 0.78, P < 0.001). Logistic regression analysis revealed that elevated ?T/QRS values in the inferior and lateral leads were risk factors for high-risk NSTEMI, with odds ratios of 10.361 and 10.738, respectively. Receiver operating characteristic curve analysis indicated that the area under the curve for predicting high-risk NSTEMI patients using ?T/QRS in the inferior and lateral leads was 0.932 and 0.855, respectively. Conclusions:?T/QRS in the inferior and lateral leads are associated with risk stratification in patients with NSTEMI and can effectively predict high-risk NSTEMI, suggesting a promising clinical application.
