关键词: Brachial plexus block lignocaine local anaesthetics ropivacaine sequential supraclavicular brachial plexus block ultrasonography

来  源:   DOI:10.4103/ija.ija_1122_23   PDF(Pubmed)

Abstract:
UNASSIGNED: There is no consensus on the appropriate use of mixtures of local anaesthetic drugs in various combinations for nerve blocks. We intended to compare short-acting lignocaine and long-acting ropivacaine as a mixture versus undiluted sequential injections on block characteristics of ultrasound-guided (USG) supraclavicular brachial plexus block for upper limb surgeries.
UNASSIGNED: A double-blinded randomised study was conducted on 64 adult patients scheduled for upper limb surgery who received 15 mL each of 2% lignocaine with adrenaline and 0.75% ropivacaine as a 1:1 mixture in the mixed group (Group M) or sequential injections in the sequential group (Group S) by using a USG technique. The primary outcome was the percentage of participants with complete four nerve sensory blocks at 10 minutes post block injection. Secondary outcomes were sensory and motor block characteristics till 30 minutes, total duration of analgesia, sensory and motor block, and complications.
UNASSIGNED: Demographic characteristics and time taken for the procedure were similar. The percentage of participants with a complete four-nerve sensory block at 10 minutes was higher in Group S (69%) versus Group M (41%) (P = 0.04). Complete sensory and motor block rates were similar at 30 minutes. The block procedure time, total duration of analgesia, and sensory and motor block were similar in both groups. There were no major complications.
UNASSIGNED: Sequential lignocaine-ropivacaine, compared to the mixed injection technique, has a higher initial rate of sensory and motor block onset with a similar total block duration.
摘要:
在各种组合中适当使用局部麻醉药物的混合物用于神经阻滞方面没有共识。我们打算比较短效利多卡因和长效罗哌卡因的混合物与未稀释的序贯注射,以观察超声引导(USG)锁骨上臂丛神经阻滞在上肢手术中的阻滞特征。
对64名进行上肢手术的成年患者进行了一项双盲随机研究,这些患者分别接受了15mL2%利多卡因与肾上腺素和0.75%罗哌卡因作为1:1的混合物在混合组(M组)中使用USG技术或在顺序组(S组)中连续注射。主要结果是在阻滞注射后10分钟内完成四次神经感觉阻滞的参与者的百分比。次要结果是直到30分钟的感觉和运动阻滞特征,镇痛的总持续时间,感觉和运动阻滞,和并发症。
人口统计特征和手术时间相似。在10分钟时完全四神经感觉阻滞的参与者百分比在S组(69%)高于M组(41%)(P=0.04)。在30分钟时完全感觉和运动阻滞率相似。块程序时间,镇痛的总持续时间,两组的感觉和运动阻滞相似。无重大并发症。
利多卡因-罗哌卡因,与混合注射技术相比,感觉和运动阻滞的初始发生率较高,总阻滞持续时间相似。
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