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静脉β受体阻滞剂在急性冠脉综合征中的临床应用 被引量:1

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摘要 目的:探讨静脉β受体阻滞剂对在急性冠脉综合征(ACS)的治疗作用.方法:(1)对 5例无明显心衰、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(AMI)患者早期(4~6小时)给予美托洛尔 5 mg静脉缓注(1 mg/min),推完后观察 3~5分钟,若心率≤ 50次 /分或血压 <90 mmHg则停止,若未下降,可连续再用两支(5 mg/支),静注完成后,如果血压 >90 mmHg,心率 >50次 /分,则开始口服美托洛尔 50 mg,6小时 1次,共 200 mg,以后 100 mg,每日两次.观察其胸痛情况,恶性心律失常发生与我院 5例急性心肌梗死未用β受体阻滞剂相对比.(2) 20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 55~60次 /分,观察心绞痛情况以及心肌梗死的发生.结果:(1) AMI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:在急性冠脉综合症中应用静脉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 殷建红
出处 《现代医药卫生》 2005年第8期928-929,共2页 Journal of Modern Medicine & Health
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