Median nerve SEP after a high medullary lesion: preserved N18 and absent P14 components (case report)

Autor: G. M. MANZANO, R. R. SCHULTZ, O. G. P. BARSOTTINI, E. ZUKERMAN, J. A. M. NÓBREGA
Jazyk: angličtina
Rok vydání: 1999
Předmět:
Zdroj: Arquivos de Neuro-Psiquiatria, Vol 57, Iss 2A, Pp 292-295 (1999)
Druh dokumentu: article
ISSN: 1678-4227
0004-282X
DOI: 10.1590/S0004-282X1999000200021
Popis: Median nerve SEPs recorded from a patient with a high medullary lesion are described. The lesion involved the anteromedial and anterolateral right upper third of the medulla, as documented by MRI. Forty one days after the lesion, left median nerve SEP showed preserved N18 and absent P14 and N20 components; stimulation of the right median nerve evoked normal responses. These findings agree with the proposition that low medullary levels are involved in the generation of the N18 component of the median nerve SEP.
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