【摘要】 目的 探讨心肌梗死早期静脉滴注利多卡因对预防发生恶性心律失常的临床价值。方法 55例患者早期应用利多卡因400～800mg，加入500ml生理盐水中，8～10滴/min静点，12例出现心律失常时，给予利多卡因50～100mg静推，反复使用，或者400～800mg持续静点。结果 55例早期应用利多卡因者，未出现恶性心律失常。12例未及早应用利多卡因者，3例出现顽固性心律失常，最后出现室颤、心衰、心脏骤停死亡。结论 心肌梗死早期应用利多卡因400～800mg静脉滴注，可防止恶性心律失常的发生，提高心肌梗死患者的生存率。

    关键词 利多卡因 心肌梗死 心律失常

    【Abstract】 Objective To investigate the clincal value of preventing cardiac arrhythmia by using lidocaine in vein as early as possible.Methods Lidocaine was used in55cases at earlier when there were ventricular cardiac arˉrhythmia in12cases.Results There were no fatal cardiac arrhythmia occur in55cases when lidocaine was used at earlier.The fatal cardiac arrhythmia occurred in3of12cases that Lidocaine was used when ventricular cardiac arˉrhythmia occured ......