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非创伤性桡神经沙漏样病变的神经肌电图分析

Journal of Modern Electrophysiology(2022)

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Abstract
目的:分析非创伤性桡神经病损的神经肌电图特点.方法:回顾性分析联勤保障部队第910医院收治的20例非创伤性桡神经麻痹的神经肌电图特点,20例患者超声均显示形态上伴有沙漏样病变.结果:20例患者肱桡肌肌电图异常16例,伸指总肌异常20例,三头肌外侧头均未受累.伸指总肌复合肌肉动作电位(CMAP)异常20例,其中18例CMAP未引出,桡浅神经感觉神经动作电位异常6例.结论:非创伤性桡神经麻痹沙漏样病变可发生在上臂桡神经主干及桡神经深支,以轴索损害为主,桡浅神经感觉纤维常不受累.
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Key words
Radial nerve,Electromyography,Hourglass-like change
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