Petajan J H
Muscle Nerve. 1982;5(9S):S157-60.
Twenty-nine patients with multiple sclerosis (MS) producing weakness or paralysis of lower and often upper extremities underwent electromyographic (EMG) examinations. Nineteen patients had no signs of neurogenic atrophy (NA) in involved limbs and normal motor nerve conduction velocities. In 4 patients signs of acute NA (fibrillations, positive waves) present on at least one examination of involved limbs disappeared on subsequent examination. Motor nerve conduction studies were normal. In 4 patients, signs of NA in lower extremities persisted for more than 1 year. In 2 patients, NA resulted from peripheral neuropathy. It is not uncommon for NA to occur in MS when muscle weakness or paralysis is present. Signs of NA apparently can remit as do other neurological signs in MS. Prospective EMG studies of MS patients are needed to document further any involvement of peripheral nervous system and the extent to which such signs can remit.
29例患有多发性硬化症（MS）且出现下肢（常累及上肢）无力或麻痹的患者接受了肌电图（EMG）检查。19例患者受累肢体无神经源性萎缩（NA）迹象且运动神经传导速度正常。4例患者受累肢体至少一次检查时出现的急性NA迹象（纤颤、正波）在随后的检查中消失。运动神经传导研究正常。4例患者下肢NA迹象持续超过1年。2例患者的NA由周围神经病变引起。当存在肌肉无力或麻痹时，NA在MS中并不罕见。NA迹象显然可像MS中的其他神经学迹象一样缓解。需要对MS患者进行前瞻性EMG研究，以进一步记录周围神经系统的任何受累情况以及此类迹象可缓解的程度。
