心电图异常J波评估急性ST段抬高型心梗患者短期预后的价值分析

Evaluation of Short-term Prognosis of Patients with Acute ST-segment Elevation Myocardial Infarction by Abnormal J Wave of Electrocardiogram

目的:探讨心电图异常J波评估急性ST段抬高型心梗患者短期预后的价值.方法:将104例急性ST段抬高型心梗患者按心电图J波分为伴有缺血性J波组(n=43)与无缺血性J波组(n=61),测量两组的T波峰-末间期(Tp-Te)与QT离散度(QTd),记录住院期间的恶性心律失常与死亡发生情况.结果:伴有缺血性J波组的Tp-Te为(129.42±24.93)ms,QTd为(90.55±16.94)ms;无缺血性J波组分别为(98.53±16.48)ms,(60.77±14.27)ms,两组比较有明显差异(P<0.05).伴有缺血性J波组患者入院48h发生恶性心律失常13例(30.2%),住院期间共发生恶性心律失常17例(39.5%),死亡6例(14.0%);无缺血性J波组患者入院48h发生恶性心律失常6例(9.8%),住院期间共发生恶性心律失常11例(18.0%),死亡1例(1.6%),两组比较有明显差异(P<0.05).结论:心电图异常J波对急性ST段抬高型心梗患者的短期预后具有预测价值.

Objective:To investigate the value of short-term prognosis in patients with acute ST segment elevation myocardial infarction by abnormal J wave of electrocardiogram.Methods:104 patients with acute ST-segment elevation myocardial infarction were divided into the group with ischemic J wave(n=43)and the group without ischemic J wave(n=61)according to the electrocardiogram J wave,and the two groups were measured The T peak-end interval(Tp-Te)and QT dispersion(QTd)record the occurrence of malignant arrhythmia and death during hospitalization.Results:Tp-Te with ischemic J wave group was(129.42±24.93)ms,QTd was(90.55±16.94)ms;non-ischemic J wave group was(98.53±16.48)ms,(60.77±14.27)ms,there is a significant difference between the two groups(P<0.05).There were 13 cases(30.2%)of malignant arrhythmias in patients with ischemic J wave group at 48h after admission,17 cases(39.5%)of malignant arrhythmia occurred during hospitalization,and 6 cases(14.0%)died;no ischemic J wave Six patients(9.8%)developed malignant arrhythmia within 48h after admission.A total of 11 patients(18.0%)developed malignant arrhythmia and 1 died(1.6%)during hospitalization.There was a significant difference between the two groups(P<0.05).Conclusion:Abnormal electrocardiogram J wave has predictive value for short-term prognosis of patients with acute ST-segment elevation myocardial infarction.