目的 探讨无异感肌间沟臂丛阻滞的效果及异感与阻滞的关系。 方法 327例锁骨、肩部及上肢择期或急诊手术患者。用不探寻异感的方法进行肌间沟臂丛阻滞，观察其阻滞效果。手术无疼痛、手术有疼痛复合氟芬合剂能完成手术为有效。 结果 全部病例在阻滞过程中均未出现异感，其中有效324例（99.1%），失败3例。 结论 不探寻异感肌间沟臂丛阻滞方法简单，易于掌握，效果良好，值得推广。
Ｏｂｊｅｃｔｉｖｅ To investigate the effect of brachial plexus block via Interscalene Route independent on paresthesia. Methods Three hundred and twenty seven patients undergoing collarbone， shoulder and upper limb surgery were collected. All patients received interscalene brachial plexus block independent on Paresthesia. The success of nerve block of nerve blocking was defined as the ability to complete surgery without the help of general anesthesia， or of droperidol-fentanyl. Results Paresthesia was not induced by brachial plexus block in all patients. Block success rate was 99.1% （324 vs 327） and 3 failed（0.9%） in the studying patients. Conclusions Interscalene blocking independent on paresthesia is a simple and useful approach for surgery.
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