1心肌梗死后室性心律失常的流行病学急性心肌梗死(AMI)后有20%的患者可能发生室性心律失常,其病死率很高,如合并有心功能不全,则病死率更高。AMI患者48h内室早发生率约为90%。非持续性室性心动过速发生率约为6%~40%,24~48h内不升高病死率,但3年的总病死率在有非持续性室性心动 Acute myocardial infarction (AMI) after acute myocardial infarction after ventricular arrhythmia 20% of patients may develop ventricular arrhythmias, the high mortality rate, if combined with cardiac insufficiency, the case fatality rate is higher. AMI 48h early internal compartment rate of about 90%. The incidence of non-sustained ventricular tachycardia is about 6% to 40%, 24 to 48h does not increase mortality, but the 3-year total mortality in non-sustained ventricular heartbeat