急性心肌梗死超急性期不典型心电图的表现

目的：探讨超急性期心肌梗死的不典型心电图表现。方法：观察52例急性心肌梗死超忽性期心电图的动态改变。结果：非透壁性心肌梗死6例(11．5％)，前壁(前间壁）心肌梗死20例（38.5％)，侧壁、下壁、后壁心肌梗死23例(44．3％)，右室心肌梗死3例(5.7％)。结论：超急性期心肌缺血、损伤与坏死的指标未完全表现出来，再发性、多发性、合并束支阻滞，预激综合征等心电图掩盖了心肌梗死的图形，容易造成漏诊和误诊。

The ECG atypical changes in early phase of acute myocardial infarction

Objective: To study the ECG atypical changes in early phase of acute myocardial infarction(AMI).Methods:The dynamic ECG changes in early phase were observed in 52 patients with AMI. Results:The ECG changes in won-tramsmural myocardial infarction were in 6 cases(11.5%), in anterior myocardial infarction(anter-oseptal myocardial infarction) 20 cases(38.5%), in lateral myocardial infarction, inferior myocardial infarction and posterior myocardial infarction 23 cases(44.3%), in right ventricular myocardial infarction 3 cases(5.79%), Conclusion: The ECG changes of myocardial ischaemia, injury .necrosis in early phase of AMI weren't showed precisely, by the changes of secondary myocardial infarction or multiple myocardial infarction, combined with bundle branch block or preexcitaion symdrome covering and so on. It would render losing diaghosis and misdiagnose easily.