低浓度布吡卡因和利多卡因混合液用于臂丛神经阻滞麻醉

Use of Low Concentration Bupivacaine-Lidocaine Mixture in the Plexus Brachialis Block Anesthesia

本文将40例手及前臂手术的成年病人随机分为两组,采取锁骨上经路的臂丛神经阻滞麻醉,分别使用0.15％布吡卡因+1％利多卡因含1/200000肾上腺素、0.25％布吡卡因+1％利多卡因含1/200000肾上腺素的混合液,注射容积小于或等于0.5ml/kg,结果麻醉效果差别无显著意义(P>0.05),这样既减少了局麻药的用量,又提高了麻醉的安全性。

The article reports 40 patients (17-45y) who performed surgical operations of forearm or hand using a plexus brachialis block anesthesia by an approach of supraclaricularis. The patients were divided randomly into 2 groups, every group being 20 patients. Group 1 (trial) had an injection of the mixture contained 0.15% bupivacaine, 1% lidocaine and 1/200 thousand epinephrine. Group Ⅱ (control) had an injection of the mixture contained 0.25% bupivacaine, 1% lidocaine and 1/200 thousand epinephrine. All patients employed a dose of 0.5ml/kg of local anesthetic injection with a maximum of less than 30ml. The result showed that analgesic effects in both groups made no difference (P>0.05), only the anesthesia duration in group I (366.1min) was markedly shorter than that in group Ⅱ(432.25min). The authors consider that low concentration bupivacaine-lidocaine mixture for plexus brachialis block is a safe and effective method for forearm or hand operation with the except of replantation of severed limb or finger owing to need of a longer operation time.