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目的比较异感定位或神经刺激定位对肌间沟臂丛一点阻滞的起效时间、成功率以及并发症。方法以神经刺激定位法(PNS)或诱发异感法(PAR)定位臂丛神经主支,注入1.5%利多卡因和0.25%布比卡因合剂20 ml,观察和记录阻滞操作时间,阻滞起效时间,可行手术时间及总的麻醉时间。结果PNS组各项时间均明显短于PAR组,PNS组的完全阻滞发生率较PAR组高(P<0.05)。结论PNS较PAR成功率更高,阻滞出现更快,麻醉效果好,技术优势显著,值得推广。
Objective To compare the onset time, success rate and complication of parasagittal brachial plexus block with different location or nerve stimulation. Methods PNS or PAR was used to locate the main branch of brachial plexus. Infused with 20 ml of 1.5% lidocaine and 0.25% bupivacaine, the operation time of the block was observed and recorded Lag lag time, feasible operation time and total anesthesia time. Results The time of PNS group was significantly shorter than that of PAR group. The incidence of complete block in PNS group was higher than that in PAR group (P <0.05). Conclusions PNS has a higher success rate than PAR, faster arrest, better anesthetic effect and significant technical advantages, which is worthy of promotion.