胸锁乳突肌肌电图在鉴别肌萎缩侧索硬化与颈椎病性脊髓病的研究

Sternocleidomastoid muscle EMG in differentiation between amyotrophic lateral sclerosis and cervical spondylotic myelopathy.

对106例肌萎缩侧索硬化(ALS)与颈椎病性脊髓病(CSM),及两病鉴别困难者进行胸锁乳突肌、肢体肌及舌肌EMG检查。结果ALS组胸锁乳突肌神经源性损害的异常率高于三肢体肌、舌肌;CSM组胸锁乳突肌无1例异常。表明该肌神经源性损害能明显提高ALS亚临床的阳性率,有助于ALS的早期诊断及ALS与CSM两病的鉴别。

Sternocleidomastoid muscle (SCM) , three limbs and tongue muscle EMGs were recorded in 106 cases suspected ALS and/or CSM. The result showed that abnormal rate of SCM-EMG was greater than that of three limbs and much greater than that of tongue in ALS, while no SCM -EMG abnormality was found in CSM. Neurogenic lesion of SCM muscle contributed to greater subclinical positive rate. It was useful for the early diagnosis of ALS and had proved a valuable diagnostic tool in the differentiation between ALS and CSM.