Conclusion Ultrasound guidance improves quality of blockade in supraclavicular brachial plexus regional anaesthesia and can reduce the dose of anesthetic with satisfactory anesthesia.

• 结论：超声引导技术改善了锁骨上臂丛神经阻滞的效果，能降低局麻药浓度或用量并保证镇痛效果完善，临床应用价值较高。