改良的星状神经节阻滞实验动物模型研究

目的：探讨颈5和颈7椎体水平穿刺入路的星状神经节阻滞效果是否相同。方法：12只雄性中国本兔，随机分为颈5（mSGB组）和颈7椎体阻滞水平组（SGB组）．分别注射0．25％布比卡因2ml后观察5．10．15，20．30．45．60分钟眼睑下垂情况。后注射0．5％亚甲蓝2ml．并处死．尸检观察记录颈交感链着色范围。结果：mSGB组及SGB组星状神经节阻滞后眼睑下垂程度无明显统计学差异．颈交感神经着色范围相同。结论：颈5和颈7水平穿刺入路星状神经节阻滞效果相同。

A Study on the Modify Animal Model of Stellate Ganglion Block

Objective： To study the effect of puncture approach at the level of the 5th and the 7th cervical vertebra for stellate ganglion block. Methods： A total of 12 chinese male rabbits were randomly divided into two groups： group mSGB （the 5th cervical vertebra level group） and group SGB （the 7th cervical vertebra level）. Ptosis were observed at 5,10,15,20,30,45,60 minutes postinjection with 0.25% bupivacaine 2ml. And cervical sympathetic nerve stained with 0.5% methylene blue at the autopsy were observed in all animals. Results： There were no difference between group mSGB and group mSGB in the degree of ptosis. And the range stained with methylene blue were equivalent in two groups. Conclusion： The puncture approach at the level of the 5th and the 7th cervical vertebra for stellate ganglion block have equivalent effect.