目的：观察曲马多加入利多卡因注射液中对腋路臂丛神经阻滞的效果。
Objective: to investigate the impact of adding tramadol to lidocaine on the efficacy and duration of axillary brachial plexus blockade.
目的观测冷生理盐水(NS)对腋路臂丛神经阻滞定位指示作用及其成功率的影响。
Objective To observe the location indicative effect of cold normal saline (NS) in axillary brachial plexus anesthesia and its influence on blockade success rate.
结论冷ns诱发腋路臂从神经异感，便于穿刺针的定位，并明显提高腋路臂丛神经阻滞成功率。
Conclusion Cold NS can induce brachial plexus paresthesia, can help needle location and improve successful axillary brachial plexus blockade rate.
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