AMI前数天至数周,部分患者可有心绞痛症状,反复发作者可能与多支血管病变及侧支循环形成有关。一次或多次短暂的心肌缺血和再灌注,可明显增加心肌对较长时间持续缺血和再灌注损伤的适应能力,即缺血预适应(IP)。此种IP可能具有一定的心肌保护作用,现分析如下: 1 资料与方法 1992年1月至1998年6月住院的99例AMI患者。男78例,女21例;均符合心电图的典型演变和心肌酶学变 Several days before AMI to several weeks, some patients may have angina pectoris, repeated episodes may be associated with multivessel angiasis and collateral circulation. One or more brief myocardial ischemia and reperfusion can significantly increase the ability of the myocardium to adapt to prolonged ischemia and reperfusion injury, ie, ischemic preconditioning (IP). This IP may have some myocardial protection, are as follows: 1 Materials and Methods January 1992 to June 1998 hospitalized 99 cases of AMI patients. There were 78 males and 21 females, all of whom were in accordance with the typical changes of electrocardiogram and myocardial enzymes