老年ST段抬高型急性心肌梗死患者PCI术后ST-T改变对短期预后的影响及发生MACE的危险因素分析OA

Objective:To investigate the correlation between electrocardiographic ST-T changes and short-term prognosis in elderly patients with STEMI after PCI,and to analyze the independent risk factors for postoperative MACE.Method:A total of 200 elderly STEMI patients admitted to the hospital from January 2023 to December 2025 were enrolled as research subjects.According to the characteristics of electrocardiographic ST-T changes 24 hours after surgery,the patients were divided into the ST-T change group(n=134)and the ST-T non-change group(n=66).All patients were followed up for 6 months.Left ventricular function and the incidence of MACE were compared between the two groups,and the risk factors for MACE were analyzed.Result:At the 6-month follow-up,the LVEDD,LVESD,LVEF in the ST-T change group were significantly superior to those in the ST-T non-change group(P<0.05).The incidence of MACE in the ST-T change group was markedly lower than that in the ST-T non-change group(P<0.05).Multivariate logistic regression analysis revealed that ST-T non-change(OR=4.741),age(OR=2.484),complicated diabetes mellitus(OR=2.366),postoperative TIMI flow grade≤Ⅱ(OR=4.213),total ischemic time(OR=3.509)and serum creatinine level(OR=1.705)were independent risk factors for MACE.Conclusion:ST-T non-change,advanced age,complicated diabetes mellitus,postoperative TIMI flow grade≤Ⅱ,prolonged total ischemic time and elevated serum creatinine are independent risk factors for short-term MACE in elderly STEMI patients after PCI.