NEUROLOGY 1986;36:587-590
© 1986 American Academy of Neurology

ARTICLES

Evoked potentials in Guillain-Barre syndrome

AH Ropper and KH Chiappa

We studied evoked potentials (EPs) in 27 patients with typical acute Guillain-Barre 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-Barre syndrome.

This article has been cited by other articles:

				A. H. Ropper, E. F. M. Wijdicks, and B. T. Shahani Electrodiagnostic Abnormalities in 113 Consecutive Patients With Guillain-Barre Syndrome Arch Neurol, August 1, 1990; 47(8): 881 - 887. [Abstract] [PDF]

				A. Pakalnis, M. E. Drake Jr, R. J. Barohn, D. W. Chakeres, and J. R. Mendell Evoked Potentials in Chronic Inflammatory Demyelinating Polyneuropathy Arch Neurol, September 1, 1988; 45(9): 1014 - 1016. [Abstract] [PDF]