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目的: 观察超声引导锁骨上臂丛神经阻滞用于上肢手术的效果.方法: 选取我院上肢手术治疗患者80例,随机分为超声引导组(n=40,采用超声引导锁骨上臂丛神经阻滞)和神经刺激器组(n=40,采用神经刺激器辅助定位锁骨上臂丛神经阻滞).比较两组患者的阻滞效果、麻醉效果,麻醉完成时间、神经阻滞起效时间、神经阻滞持续时间,并发症等指标.结果: 超声引导组阻滞完全率为97.5%,显著高于神经刺激器组的65.0%;阻滞不全率则显著低于神经刺激器组;麻醉效果优良率为95.0%,也显著高于神经刺激器组的75.0%;差异均有统计学意义(P<0.05).超声引导组麻醉完成时间、神经阻滞起效时间均显著短于神经刺激器组(P<0.05),神经阻滞持续时间显著长于神经刺激器组(P<0.05);并发症发生率显著低于神经刺激器组(P <0.05).结论: 超声引导较神经刺激器辅助定位锁骨上臂丛神经阻滞用于上肢手术效果优于采用神经刺激器辅助定位锁骨上臂丛神经阻滞.“,”Objective: To observe the effect of ultrasound-guided clavicular brachial plexus block in upper limb surgery.Methods: Eighty patients undergoing upper limb surgery were enrolled and randomly divided into two groups: ultrasound-guided clavicular brachial plexus block group (ultrasound guidance group, n=40) and nerve stimulator-assisted positioning of the supraclavicular brachial plexus block group (nerve stimulator group,n =40).The block effect, anesthesia effect, anesthesia completion time, nerve block onset time, nerve block duration and complication were compared and analyzed statistically between the groups.Results: The completed rate of block was 97.5%in the ultrasound guidance group, which was significantly higher than that in the nerve stimulator group (65.0%) (P<0.05);the uncompleted rate was significantly lower than that in the nerve stimulator group.The fine/excellent rate of anesthesia was 95.0% , which was significantly higher than that of the nerve stimulator group (75.0%, 30/40) (P<0.05);the complete time of anesthesia and nerve block onset time were significantly shorter than those in the nerve stimulator group (P<0.05);the duration of nerve block was significantly longer than that in the nerve stimulator group (P<0.05);the incidence of complications was 7.5%), which was significantly lower than that of the nerve stimulator group (37.5%, 15/40) (P<0.05).Conclusion: In upper limb surgery, ultrasound-guided nerve stimulator assisted positioning of clavicular brachial plexus block is better than nerve stimulator assisted positioning of clavicular brachial plexus block.