Ropper A H, Chiappa K H
Neurology. 1986 Apr;36(4):587-90. doi: 10.1212/wnl.36.4.587.
We studied evoked potentials (EPs) in 27 patients with typical acute Guillain-Barré syndrome and 3 with Fisher's syndrome. Three of 21 had BAEP abnormalities: 1 with bilateral I-III, 1 with unilateral I-III, and another with unilateral III-V interwave latency prolongations. Three with Fisher's syndrome had normal BAEPs (one had a poorly formed wave V unilaterally with one click polarity only). Ten of 21 median nerve EPs and 9 of 12 peroneal or tibial nerve somatosensory EPs were abnormal. Seven patients with normal somatosensory EPs had abnormal F waves from the same nerve; none had normal late responses and abnormal somatosensory EPs. These observations differ from previous reports on the frequency and interpretation of EP abnormalities in Guillain-Barré syndrome.
我们研究了27例典型急性吉兰-巴雷综合征患者和3例费舍尔综合征患者的诱发电位（EP）。21例中有3例存在脑干听觉诱发电位（BAEP）异常：1例双侧I-III波异常，1例单侧I-III波异常，另1例单侧III-V波间期延长。3例费舍尔综合征患者的BAEP正常（1例仅在单极性点击刺激时单侧V波波形不佳）。21例正中神经EP中有10例异常，12例腓总神经或胫神经体感EP中有9例异常。7例体感EP正常的患者同一神经的F波异常；无一例晚期反应正常而体感EP异常。这些观察结果与先前关于吉兰-巴雷综合征中EP异常的频率和解释的报道不同。
