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阿曲库铵和维库溴铵量──效关系和恢复时相的比较性研究

薛富善, 刘建华, 张雁明, 廖旭, 安刚   

  1. 中国医学科学院,中国协和医科大学整形外科医院麻醉科, 北京 100041
  • 收稿日期:1998-07-06 修回日期:1999-03-02 出版日期:1999-06-15 发布日期:1999-06-15

A Comparative Study of the Dose-Response and Recovery Time Course of Atracurium and Vecuronium

Xue Fushan, Liu Jianhua, Zhang Yanming, Liao Xu, An Gang   

  1. Department of Anesthesia. Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100041
  • Received:1998-07-06 Revised:1999-03-02 Online:1999-06-15 Published:1999-06-15

摘要: 比较性观察阿曲库铵和维库溴铵量-效关系和恢复时相特征。选择60ASAI, 年龄1750, 施择期整形外科手术的中国患者, 分层随机平均分成阿曲库铰组和维库溴铵组。用60%NO2-O2-硫喷妥钠-芬太尼维持麻醉。用加速度仪监测神经肌肉功能, 采用TOF刺激方式, T1抑制的百分比为研究指标。用累计给药方法建立阿曲库铵和维库溴铵的量-效关系曲线。根据用最小二乘法建立的量-效关系曲线, 阿曲库铵的神经肌肉阻滞作用强度仅为维库溴铵的17%。两药的ED50ED90ED95均有明显差别。应用等效剂量(1.5×ED95), 两药的高峰时间、临床肌松时间、恢复时间和体内作用时间均无明显差别。结论:阿曲库铵是一弱效能的肌松药, 而维库溴接为一强效能肌松药。阿曲库按和维库溴铵的作用强度比率为1/6。应用等效剂量后, 两药的恢复时相无明显差别。

关键词: 阿曲库铵, 维库溴铵, 药效动力学

Abstract: To compare the characteristics of the dose-response and the time-course of action between atracurium and veculonium, sixty Chinese patients, ASA grade I, aped 17~50 (28.2±8.3) years, scheduled for elective plastic surgery were studied. All the patients were randomly and equally divided to either atracurium or vecuronium group. General anesthesia was maintained with 60% nitrous oxide in oxygen, thiopentone, and fentanyl. Neuromuscular function was assessed using an accelerometer with train-of-four (TOF) stimulation at the wrist every 12 s, and the depression percentage of first botch (T1) was used as the study parameter. The dose-response relationships of atracurium and vecuronium were determined by the cumulative dose-response technique. According to the dose-response curves established by led squares linear regression, the neuromuscular blocking potency of atracurium was only approximately 17% that of vecuronium. There were significant differences in the ED50, ED90, and ED95 between the two drugs. After the intravenous administration of equipotent doses of the two drugs (1.5×ED95), the duration of peak effect, clinical duration, recovery index, and total duration showed no significant differences between them. It is concluded that atracurium is a low-potency muscle relaxant and vecuronium is a high-potency muscle relaxant. The potency ratio of vecuronium: atracurium is 1:6 on the basis of ED95, and the recovery time course of the two drugs showed no significant differences following administration of equipotent doses.

Key words: Atracndum, Vecuronium, Pharmacodyndrics

Supporting:

The study was supported by the Scientific Research Fund of Chinese Academy of Medical Sciences and Peking Union Medical College and the Excellent Young Scientists Fund of the Ministry of Public Health, the People's Republic of China.