根据心电图改变,心肌梗塞的衍变过程分为3期:超急性损伤期;急性充分发展期;慢性稳定期。超急性损伤期持续时间很短,典型的心电图改变不常见,往往被临床工作者忽视,而此期极易发生致命性的心律失常,识别这一期的心电图表现,对早期诊断和治疗心肌梗塞都大有裨益,特此报道1例: According to ECG changes, the evolution of myocardial infarction is divided into three stages: hyperacute injury; acute full development; chronic stable. The duration of hyperacute injury is very short, typical ECG changes are uncommon and often overlooked by clinicians, and fatal arrhythmias are most likely to occur during this period, identifying the electrocardiographic findings of this phase, and the early diagnosis and treatment of myocardial infarction Are of great benefit, we hereby report a case: