非创伤性桡神经沙漏样病变的神经肌电图分析  

Nerve electromyogram analysis in non-traumatic hourglass-like lesions of radial nerve

作　　者：吴美娜 李金铃 陈晓瑜 黄霄云 Wu Meina;Li Jinling;Chen Xiaoyu;Huang Xiaoyun(Department of Neurology,910th Hospital of Joint Logistics Support Force,Quanzhou City,Fujian Province,362000,China;Department of Hand Surgery,Huashan Hospital Affiliated to Fudan University,Shanghai City,200040,China)

机构地区：[1]联勤保障部队第910医院神经内科,福建省泉州市362000 [2]复旦大学附属华山医院手外科肌电图室,上海市200030

出　　处：《现代电生理学杂志》2022年第3期149-152,共4页Journal of Modern Electrophysiology

摘　　要：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。Objective:To analyze the nerve electromyogram(EMG)characteristics of non-traumatic hourglass-like lesions of radial nerve.Methods:EMG characteristics of 20 patients with non-traumatic radial nerve palsy admitted to 910th Hospital of Joint Logistics Support Force were retrospectively analyzed.Ultrasonography showed that 20 patients were accompanied by hourglass-like lesions.Results:Of the 20 patients,16 cases had abnormal EMG of brachioradialis,20 cases had abnormal EMG of musculi extensor digitorum,and the lateral head of triceps muscle was not involved.Compound muscle action potential of musculi extensor digitorum was abnormal in 20 cases,of which 18 cases were not extracted.Sensory nerve action potential of superficial radial nerve was abnormal in 6 cases.Conclusion:Hourglass-like lesions of non-traumatic radial nerve paralysis can occur in the trunk of the radial nerve in the upper arm and the deep branch of the radial nerve,with axonal damage mainly,and the sensory fibers of superficial radial nerve are often not involved.

关 键 词：桡神经 肌电描记术 沙漏样改变 

分 类 号：R741.044[医药卫生—神经病学与精神病学]