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静脉β受体阻滞剂对急性冠脉综合征的疗效观察

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摘要 目的探讨静脉β受体阻滞剂对急性冠脉综合征的治疗作用。方法①对10例不存在明显心衰、持续低血压(收缩压<100 mmHg)、心动过缓(心率<60次/分)和房室传导阻滞的急性心肌梗死患者早期(4~6 h)给予美托洛尔5 mg静脉缓注(1 mg min-1),推完后观察3~5 min,若心率≤50次.min-1或血压<90 mmHg则停止,若未下降,可连续再用10 mg,静注完成后,如果血压>90 mmHg,心率>50次.min-1,则开始口服美托洛尔50 mg,6 h1次,共200 mg,以后两周内每次100 mg,每日2次。观察其胸痛情况,恶性心律失常发生与另外10例急性心肌梗死未用β受体阻滞剂相对比。②30例不稳定心绞痛患者设对照组试验,用AMI相似方法,使静息心率在35~60次.min-1,观察心绞痛情况以及心肌梗死的发生。结果①AMI患者胸痛症状控制明显,室颤等恶性心律失常显著减少,死亡率下降。②不稳定心绞痛患者心绞痛发作控制,心肌梗死发生率显著减少。结论在急性冠脉综合征中应用静脉β受体阻滞剂可明显缓解胸痛症状,减少恶性心律失常发生,明显改善预后。
作者 魏二福
机构地区 商水县人民医院
出处 《河南职工医学院学报》 2007年第5期435-436,共2页 Journal of Henan Medical College For Staff and Workers
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