【摘要】 目的 探讨早期静注美托洛尔对急性心肌梗死(AMI)的治疗作用。方法 按照164例AMI患者美托洛尔的使用情况，分为静注美托洛尔组、口服美托洛尔组。分别观察比较CPK-MB、心率、血压的变化及不同时段胸痛、再梗、室性心律失常、室颤、心衰、病死率和并发症等的差异。结果 早期静注美托洛尔可减少胸痛、再梗、室性心律失常、室颤、心衰、病死率的发生，但两组并发症差异无显著性。结论 早期静注美托洛尔可改善急性心肌梗死的预后。

    【关键词】 急性心肌梗死；美托洛尔；静脉注射

    The efficacy of early intravenous injection of metoprolol after thrombolytic therapy on acute myocardial infarction

    CHENG Biao，CAI Li，ZHOU Xiao-fang，et al.Department of Cardiology，Sichuan Provincial People’s Hospital，Chengdu 610072，China

    【Abstract】 Objective To investigate the effect for early-term with metoprolol intravenous injection after acute myocardial infarction. Methods 164 patients after AMI were divided into intravenous and oral group accoding to the usage of metoprolol.83 cases were injected metoprolol repeatedly(5 mg intravenously at 2-minute intervals over 6 minutes ......