心电图参数评估急性心肌梗死并发心律失常风险的价值

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[中图分类号]R541.7;R540.41［文献标志码]A[文章编号]2097-5716（2025）04-0527-04

DOI： 10.13308/j.issn.2097-5716.2025.04.010

［引用格式].心电图参数评估急性心肌梗死并发心律失常风险的价值[J].实用心电与临床诊疗，2025，34（4）：527-530，535.

Value electrocardiographic parameters in assessing risk arrhythmia complicating acute myocardial infarctionLIU Peng（， China）

[Abstract]ObjectiveTo evaluate the predictive value changes in electrocardiographic parameters for the risk arrhythmia complicating acute myocardial infarction（AMI）.MethodsClinical data 138 AMI patients who had undergone percutaneous coronary intervention（PCI）were retrospectively selected.Based on the presence or absence arhythmia within 1 week after PCI，these patients were divided into an arhythmia 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 regresson analysis was employed to examine the relationship between electrocardiogram （ECG）changes and the risk arrhythmia in AMI patients.The predictive ffciency these ECG indicators for arrhythmia among AMI patients was evaluated using ROC curve analysis.ResultsOne month postoperatively，138 AMI patients exhibited significantlydecreased QT interval，Tp-Te interval，QTd andRR 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 the non-arrhythmia group（all P< 0.01）.Binary Logisticregresion analysis identified Tp-Te intervaland QTd as independent risk factorsfor arrhythmia in AMI patients （both OR>1 ， P<0.05 ），with SDNN serving as a protective factor （ OR<1，P<0.01） 二 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.ConclusionAfter PCI，ECG parameters AMI patientsall improve significantly.Tp-Te interval，QTd，and SDNN are influencing factors for arhythmia among AMI patients. ECG could be used to predict the risk arrhythmia complicating AMI.

[Key words] acute myocardial infarction; arrhythmia; electrocardiogram; influencing factor

急性心肌梗死（acutemyocardial infarction，AMI）是临床常见的心血管疾病，患者常表现为明显胸痛、恶心呕吐等症状，若不及时干预，会进一步损伤心肌细胞，威胁患者生命安全。（剩余4603字）