急性心肌梗塞(AMI)48小时内原发性室性颤动(PVF)发生率为2～10％,近半数死亡,是AMI早期死亡的重要原因。鉴于警告性心律失常(WA)不能敏感和特异地预示PVF、Amsterdan等主张对AMI患者早期常规应用利多卡因预防PVF,但未被广泛接受。本文分析了本院近10年来109例AMI住院病例以探讨AMI患者早期预防性应 Acute myocardial infarction (AMI) within 48 hours of primary ventricular fibrillation (PVF) incidence of 2 to 10%, nearly half of the death, is an important cause of early AMI death. Given that precordial arrhythmias (WA) are not sensitive and specific predictors of PVF, Amsterdan et al advocate the early routine use of lidocaine for prophylaxis of PVF in patients with AMI but have not been widely accepted. This article analyzes 109 cases of AMI hospitalized cases in our hospital in recent 10 years to explore the early preventive effect of AMI