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中国临床药理学与治疗学 ›› 2009, Vol. 14 ›› Issue (1): 90-93.

• 药物治疗学 • 上一篇    下一篇

罗哌卡因蛛网膜下隙阻滞分娩镇痛的剂量-效应关系

蔡晓雷1, 钟惠珍2, 甘果1, 袁力勇1, 黄建平3, 方春峰4   

  1. 1宁波市妇女儿童医院麻醉科, 宁波 315012, 浙江;
    2宁波市妇女儿童医院妇产科, 宁波 315012, 浙江;
    3宁波大学附属医院麻醉科, 宁波 315013, 浙江;
    4奉化市妇幼保健院麻醉科, 奉化 315504, 浙江
  • 收稿日期:2008-11-24 修回日期:2008-12-25 出版日期:2009-01-26 发布日期:2020-10-27
  • 通讯作者: 袁力勇,男, 博士在读, 副主任医师, 研究方向:麻醉药理学。Tel:13967804761 E-mail:ylysgl@hotmail.com
  • 作者简介:蔡晓雷, 男, 本科, 主治医师, 研究方向:临床麻醉。Tel:0574-87083324  E-mail:caixiaolei.1977 @yahoo.com.cn

Dose-effect relationship of intrathecal ropivacaine for labor analgesia

CAI Xiao-lei1, VZHONG Hui-zhen2, GAN Guo1, YUAN Li-yong1, HUANG Jian-ping3, FANG Chun-feng4   

  1. 1Department of Anesthesiology, Ningbo Women &Children' s Hospital, Ningbo 315012, Zhejiang, China;
    2Department of Gynaecology and Obstetrics, Ningbo Women &Children' s Hospital, Ningbo 315012, Zhejiang, China;
    3Department of Anesthesiology, Affiliated Hospital of Ningbo University, Ningbo 315013, Zhejiang, China;
    4Department of Anesthesiology, Fenghua Maternity &Infant Health Institute, Fenghua 315504, Zhejiang, China
  • Received:2008-11-24 Revised:2008-12-25 Online:2009-01-26 Published:2020-10-27

摘要: 目的: 确定罗哌卡因(ropivacaine, Rop) 蛛网膜下隙分娩镇痛的剂量-效应关系。方法: 100名拟实施分娩镇痛初产妇, 按蛛网膜下隙Rop 剂量不同, 随机分为Rop 1.0 mg (R1 ) 组、1.5 mg(R2 )组、2.2 mg (R3 ) 组及3.3 mg(R4 ) 组, 每组25 名。有效镇痛的标准为蛛网膜下隙注射Rop 10 min 内产妇宫缩时VAS 评分0 ~ 2 cm。运用概率单位回归分析(Probit 法), 建立有效镇痛产妇比例的概率单位(Z 值) 与蛛网膜下隙Rop 对数剂量的回归关系方程, 并计算Rop 的ED50及ED95 。结果: 有效镇痛产妇比例的概率单位(Z 值) 与Rop 对数剂量的回归关系方程为:Probit(Z)=-1.00478+5.67816(log 剂量);Rop 蛛网膜下隙分娩镇痛的ED50 为1.50 mg(95 %可信区间:1.31 ~ 1.70 mg), ED95 为2.93 mg (95 %可信区间:2.42 ~ 4.16 mg) 。结论: Rop 蛛网膜下隙分娩镇痛的ED50为1.50 mg, ED95为2.93 mg 。

关键词: 罗哌卡因, 蛛网膜下隙, 分娩镇痛, 剂量, 效应

Abstract: AIM: To determine the dose-effect relationship of intrathecal ropivacaine for labor analgesia. METHODS: One hundred premolars in active labor were included in this randomized trial.Ropivacaine was intrathecally administered in a dose of 1.0, 1.5, 2.2 or 3.3 mg.Premolars were considered responders to spinal analgesia if the visual analog scale score for pain was less than 3 cm within 10 min.Group-specific dose-response curves were constructed using a probit regression model.RESULTS: The ED50 and ED95 of ropivacaine were 1.50 mg (95 % confidence interval: 1.31-1.70mg) and 2.93mg(95 % confidence interval: 2.42-4.16 mg ), respectively.The relationship between the probit of effective analgesic ratio of premolars and the log of dosage of intrathecal ropivacaine was established.Regression equation was Probit (Z)=-1.00478+5.67816(log of dosage).CONCLUSION: The ED50 and ED95 of ropivacaine are 1.50 mg and 2.93 mg, respectively.

Key words: ropivacaine, subarachnoid space, labor analgesia, dosage, effect

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