Keren O, Groswasser Z, Heller L, Ring H
Loewenstein Rehabilitation Hospital, Ra'anana, Israel.
Electromyogr Clin Neurophysiol. 1992 Oct-Nov;32(10-11):547-54.
Electrodiagnostic tests-needle EMG, nerve conduction and somatosentory evoked potential (SEP) studies of the upper and the lower limbs were performed in three patients during the subacute phase of poliomyelitis. Although poliomyelitis is traditionally considered a "pure motor" disease, involvement of the sensory system was demonstrated by prolonged sensory nerve conduction and by delayed latencies and amplitude asymmetries of SEPs obtained from the lower limbs. Sensory deficit in poliomyelitis is well known to exist during the acute phase of illness. The present report describes the electrophysiological findings in patients during the subacute phase, several months after onset of illness. Sensory nerve action potentials and sensory evoked potentials were abnormal, especially those elicited by lower limb stimulation although the patients had no overt signs of sensory loss at that time. The associated EMG findings are described, and the probable pathologic changes of the motor unit are discussed.
在三名脊髓灰质炎患者的亚急性期进行了电诊断测试——上肢和下肢的针极肌电图、神经传导和躯体感觉诱发电位（SEP）研究。尽管传统上认为脊髓灰质炎是一种“纯运动”疾病，但通过感觉神经传导延长以及下肢SEP的潜伏期延迟和波幅不对称，证实了感觉系统受累。众所周知，脊髓灰质炎在疾病急性期存在感觉缺陷。本报告描述了疾病发作数月后的亚急性期患者的电生理 findings。感觉神经动作电位和感觉诱发电位异常，尤其是下肢刺激引出的电位，尽管当时患者没有明显的感觉丧失体征。描述了相关的肌电图 findings，并讨论了运动单位可能的病理变化。
