Atypical EEG pattern in children with absence seizures

Atypical EEG pattern in children with absence seizures

Alternative title Padrão atípico no EEG de crianças com crises de ausência
Author Silva, Délrio F. Autor UNIFESP Google Scholar
Lima, Márcia Marques Google Scholar
Anghinah, Renato Google Scholar
Zanoteli, Edmar Autor UNIFESP Google Scholar
Lima, José Geraldo Camargo Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract We studied four children with diagnosis of absence seizures (generalized primary epilepsy), and with a generalized delta activity on the EEG during clinical attacks provoked by hyperventilation. The lack of ictal generalized spike-and-wave discharges with a frequency of 3 Hz in our patients, makes this an atypical pattern. All children had complete control of their seizures and disappearance of the EEG changes with valproate. We concluded that generalized delta activity observed on EEG during the hyperventilation in children should not always be considered as a normal finding for age, since it could be an ictal event of an absence seizure.

Estudamos quatro crianças com o diagnóstico de crises de ausência (epilepsia generalizada primária) e com atividade delta generalizada no EEG, durante crises provocadas pela hiperpnéia. A ausência de descargas generalizadas por complexos ponta-onda a 3 Hz, durante as crises de nossos pacientes, é achado incomum. Todas as crianças tiveram completo controle de suas crises com o valproato, assim como o desaparecimento das alterações no EEG. Concluimos que a atividade delta generalizada observada no EEG de crianças durante a hiperpnéia nem sempre deve ser vista como achado normal, podendo ser um evento crítico da crise generalizada ausência.
Keywords epilepsy
absence seizures
EEG
hyperventilation
delta activity
epilepsia
crises de ausência
EEG
hiperventilação
atividade delta
Language English
Date 1995-06-01
Published in Arquivos de Neuro-Psiquiatria. Academia Brasileira de Neurologia - ABNEURO, v. 53, n. 2, p. 258-261, 1995.
ISSN 0004-282X (Sherpa/Romeo, impact factor)
Publisher Academia Brasileira de Neurologia - ABNEURO
Extent 258-261
Origin http://dx.doi.org/10.1590/S0004-282X1995000200012
Access rights Open access Open Access
Type Article
Web of Science ID WOS:A1995RB33500012
SciELO ID S0004-282X1995000200012 (statistics in SciELO)
URI http://repositorio.unifesp.br/handle/11600/378

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