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目的：研究用静脉留置针进行连续肌间沟臂丛神经阻滞的可行性及满意度。方法40例择期或急诊行上肢外科手术的病人分两组，分别用22G静脉留置针及普通注器针头行臂丛神经阻滞，观察其麻醉阻滞效果及各种不良反应。结果所有患者麻醉阻滞效果满意，术中生命指征平稳，并发症出现机率少。结论用22G静脉留置针行连续臂丛神经阻滞是可行的，麻醉效果好。“,”To study the feasibility and satisfaction of Cannulae-needle used in continued brachial plexus block.Methods Fifty emergency patients were operated on upper-limbs surgery. Continued brachial plexus block and common brachial plexus block were used and vital signs effectiveness of anesthesia and side reaction were observed.Results Anesthesias were satisfactory in 80 persent patients . The life signs of the two groups were stable during brachial plexus block .Little complication were observed.Conclusions Using 22G vein-retention-needle to perform continued brachial plexus is a good anesthetic method for upper arm operation.