摘要
对５６例发病初心电图ＳＴ段抬高（第Ⅰ组）和２５例无ＳＴ段抬高（第Ⅱ组）的急性心肌梗塞（ＡＭＩ）患者的磷酸肌酸激酶同功酶（ＣＫＭＢ）峰值进行对比。结果：第Ⅰ、Ⅱ组患者ＣＫＭＢ峰值分别为２０７±９３Ｕ／Ｌ和６３±４９Ｕ／Ｌ（Ｐ＜０．０１），ＣＫＭＢ峰值时间分别为１８±６小时和１１±４小时（Ｐ＜０．０１）。无ＳＴ段抬高者其ＣＫＭＢ峰值较低，但出现时间提前。这一现象与ＡＭＩ早期冠状动脉自发性复流的观点一致。
his study compared the time from the onset of symptoms to the peak of the creatine kinasemyocardial band (CKMB) in 81 patients with acute myocardial infarction.The patients were divided into two groups:group 1(n=56) had diagnostic ST segment elevation(≥0 1mV)on the initial ECG,and group 2 (n=25) did not have diagnostic ST segment elevation on the initial ECG.In group 1,the time to the peak CKMB was 18±6 hours vs 11±4 hours in group 2( P <0 01).Peak CKMB was 207±93U/L in group 1 vs 63±49U/L in group 2 ( P <0 01).In group 1,49 patients subsequently had a Q wave myocardial infarction whereas only 7 patients in group 2 ( P <0 01).Patients without diagnostic ST segment elevation on the initial ECG had an early but low peak of CKMB with a typical nonQ wave infarction.These findings were consistent with early spontaneous restoration of blood flow during the infarction process in these patients.The fact of early restoration of blood flow may explain the high incidence of recurrent ischemic events noted in patients with nonQ wave myocardial infarction.
出处
《中国危重病急救医学》
CAS
CSCD
1996年第5期278-280,共3页
Chinese Critical Care Medicine
关键词
心肌梗塞
心电图
ST段
CK-MB
acute myocardial infarctiom
creatine kinase myocardial band
spontaneous restoration of blood flow
