罗哌卡因蛛网膜下隙阻滞分娩镇痛的剂量-效应关系  被引量:11

Dose-effect relationship of intrathecal ropivacaine for labor analgesia

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作  者:蔡晓雷[1] 钟惠珍[2] 甘果[1] 袁力勇[1] 黄建平[3] 方春峰[4] 

机构地区:[1]宁波市妇女儿童医院麻醉科 [2]宁波市妇女儿童医院妇产科 [3]宁波大学附属医院麻醉科 [4]奉化市妇幼保健院麻醉科

出  处:《中国临床药理学与治疗学》2009年第1期90-93,共4页Chinese Journal of Clinical Pharmacology and Therapeutics

基  金:宁波市医学科技项目(2006009);宁波市优秀中青年卫生技术人才项目(2007201)

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 1.0mg(R。)组、1.5mg(R2)组、2.2mg(Rj)组及3.3mg(R4)组,每组25名。有效镇痛的标准为蛛网膜下隙注射Rop 10min内产妇宫缩时VAS评分0~2cm。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E%及E%。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(10g剂量);Rop蛛网膜下隙分娩镇痛的ED50为1.50mg(95%可信区间:1.31~1.70mg),ED。为2.93mg(95%可信区间:2.42~4.16mg)。结论:Rop蛛网膜下隙分娩镇痛的ED50为1.50mg,ED95为2.93mg。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 - 1.70 mg) and 2.93 mg(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.

关 键 词:罗哌卡因 蛛网膜下隙 分娩镇痛 剂量 效应 

分 类 号:R614[医药卫生—麻醉学]

 

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