中国冶金工业医学杂志

神经肌电图在腕管综合征中的诊断价值

作者：张玲李应宏

分类号：R 651

出版年,卷(期):页码：2016,33(4):379-381

摘要：

目的探讨神经肌电图检查在腕管综合征中的诊断价值。方法回顾性分析56例腕管综合征的神经肌电图。结果528%的腕管综合征的病例正中神经在腕以下段感觉神经传导波幅降低或消失，903%的感觉传导速度减慢；847%的正中神经运动电位潜伏期延长，333%的CMAP波幅降低；542%的病例拇展短肌神经源性损害表现。对8例针肌电图及神经传导速度均正常的患者，进行了刺激环指，比较相同距离正中神经与尺神经的潜伏期之差值，有6例差值大于04 ms。结论不同神经支配的相应肌肉、正中神经支配的拇展短肌肌电图、同侧正中、尺神经传导对比的神经电图检查，对腕管综合征的诊断具有重要意义。刺激环指比较同等距离正中神经与尺神经潜伏期的差值是早期诊断腕管综合征的敏感指标。

关键词：腕管综合征；神经电图；针极肌电图

ObjectiveTo investigate the diagnostic value of nerve electromyography in carpal tunnel syndrome.MethodsA retrospective analysis the neuromuscular electrical diagram of 56 cases with carpal tunnel syndrome.ResultsThe amplitudes of sensory nerve conduction of median nerve under the lever of wrist were decreased or disappeared in 528% cases,the velocity of sensory conduction slowed in 903% cases;the period of potential in the median motor nerve were lengthen in 847% cases,the CMAP amplitude were lowered in 333%;short muscle neurogenic damage performance were showed in 542%.The ring finger were stimulated in 8 cases of normal needle electromyography and nerve conduction velocity,the difference of the incubation period in the median and ulnar nerve in the same distance were compared,and the differences being greater than 04 ms were showed in 6 cases.ConclusionDifferent innervations of the corresponding muscles,electromyography of abductor hallucis brevis innervated by the median nerve,EMG examination comparing of ipsilateral median and ulnar nerve conduction,has great significance to the diagnosis of carpal tunnel syndrome.The difference of the incubation period compared the median nerve and ulnar nerve in equal distance by ring finger stimulated is a sensitive index for early diagnosis of carpal tunnel syndrome.Key Words:Carpal tunnel syndrome;Electroneurography;Needle electromyography

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参考文献：

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