摘要
Abstract
Objective To evaluate the predictive value of changes in electrocardiographic parameters for the risk of arrhythmia complicating acute myocardial infarction(AMI).Methods Clinical data of 138 AMI patients who had undergone percutaneous coronary intervention(PCI)were retrospectively selected.Based on the presence or absence of arrhythmia within 1 week after PCI,these patients were divided into an arrhythmia group(n=56)and a non-arrhythmia group(n=82).Preoperative and postoperative(1-month)electrocardiographic parameters including QT interval,Tp-Te interval,QT dispersion(QTd),RR interval and SDNN were compared between the two groups.Binary Logistic regression analysis was employed to examine the relationship between electrocardiogram(ECG)changes and the risk of arrhythmia in AMI patients.The predictive efficiency of these ECG indicators for arrhythmia among AMI patients was evaluated using ROC curve analysis.Results One month postoperatively,138 AMI patients exhibited significantly decreased QT interval,Tp-Te interval,QTd and RR interval,while SDNN was significantly increased compared to preoperative values(all P＜0.01).Preoperatively,the arrhythmia group demonstrated significantly higher Tp-Te interval,QTd,and SDNN than those of the non-arrhythmia group(all P＜0.01).Binary Logistic regression analysis identified Tp-Te interval and QTd as independent risk factors for arrhythmia in AMI patients(both OR＞1,P＜0.05),with SDNN serving as a protective factor(OR＜1,P＜0.01).ROC curve analysis revealed that the AUC values for predicting arrhythmia in AMI patients by using Tp-Te interval,QTd,SDNN,or their combination all exceeded 0.70.Conclusion After PCI,ECG parameters of AMI patients all improve significantly.Tp-Te interval,QTd,and SDNN are influencing factors for arrhythmia among AMI patients.ECG could be used to predict the risk of arrhythmia complicating AMI.关键词
急性心肌梗死/心律失常/心电图/影响因素Key words
acute myocardial infarction/arrhythmia/electrocardiogram/influencing factor分类
医药卫生
