目的观察小儿肌间沟入路臂丛神经阻滞麻醉的效果。方法选择34例ASAⅠ～Ⅱ级小儿上肢手术患者,在肌间沟行臂丛神经阻滞,阻滞成功后注入0.25%罗哌卡因局麻药,用量按0.5～0.6ml/kg给药。34例患儿均采用惠普多参数监护仪连续检测ECG、HR、SpO2。结果34例患儿均取得良好的阻滞效果,术中患儿患肢松弛,对手术刺激及止血带耐受良好。结论小儿肌间沟入路臂丛神经阻滞麻醉具有操作简便、阻滞完善、并发症少等特点,且易掌握,值得临床推广。 Objective To observe the effect of brachial plexus block in pediatric interosseous canal approach. Methods 34 ASA Ⅰ ~ Ⅱ pediatric upper limb surgery patients were selected. After brachial plexus block was implanted in the interosseous muscle, 0.25% ropivacaine local anesthetic was injected after successful block. The dosage was 0.5-0.6 ml / kg. All 34 children were monitored by HP multi-parameter monitor for ECG, HR and SpO2 continuously. Results All the 34 cases achieved good blocking effect. The limbs were relaxed during surgery and were well tolerated by surgery and tourniquet. Conclusion pediatric interosseous approach brachial plexus block anesthesia has the advantages of simple operation, perfect block, fewer complications, and easy to grasp, worthy of clinical promotion.