Photoparoxysmal responses

Photoparoxysmal responses

Sixty-five outpatients with photoparoxysmal response (PPR) during routine EEG were studied. The PPR showed prevalence in women (75.4%). Seizures were found in 66.1% of cases. The rest recordings were abnormal in 41.8% with prevalence of generalized paroxysm. Eight patterns of PPR were observed, being polyspike mixed to slow wave the most frequent (53%). The epileptic group showed a bimodal distribution in the several bands of photic stimulation, near 8 and 20-24 Hz. A sustained paroxysmal abnormality persisting after the photic stimulation was present in 6 epileptic patients.

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Main Authors: Muszkat,Mauro, Guimarães,Rosana M., Silva,Ademir B. da, Campos,Carlos J. Reis de
Format: Digital revista
Language:English
Published: Academia Brasileira de Neurologia - ABNEURO 1990
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X1990000300006
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spelling oai:scielo:S0004-282X19900003000062011-05-26Photoparoxysmal responsesMuszkat,MauroGuimarães,Rosana M.Silva,Ademir B. daCampos,Carlos J. Reis deSixty-five outpatients with photoparoxysmal response (PPR) during routine EEG were studied. The PPR showed prevalence in women (75.4%). Seizures were found in 66.1% of cases. The rest recordings were abnormal in 41.8% with prevalence of generalized paroxysm. Eight patterns of PPR were observed, being polyspike mixed to slow wave the most frequent (53%). The epileptic group showed a bimodal distribution in the several bands of photic stimulation, near 8 and 20-24 Hz. A sustained paroxysmal abnormality persisting after the photic stimulation was present in 6 epileptic patients.info:eu-repo/semantics/openAccessAcademia Brasileira de Neurologia - ABNEUROArquivos de Neuro-Psiquiatria v.48 n.3 19901990-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X1990000300006en10.1590/S0004-282X1990000300006
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Muszkat,Mauro
Guimarães,Rosana M.
Silva,Ademir B. da
Campos,Carlos J. Reis de
spellingShingle Muszkat,Mauro
Guimarães,Rosana M.
Silva,Ademir B. da
Campos,Carlos J. Reis de
Photoparoxysmal responses
author_facet Muszkat,Mauro
Guimarães,Rosana M.
Silva,Ademir B. da
Campos,Carlos J. Reis de
author_sort Muszkat,Mauro
title Photoparoxysmal responses
title_short Photoparoxysmal responses
title_full Photoparoxysmal responses
title_fullStr Photoparoxysmal responses
title_full_unstemmed Photoparoxysmal responses
title_sort photoparoxysmal responses
description Sixty-five outpatients with photoparoxysmal response (PPR) during routine EEG were studied. The PPR showed prevalence in women (75.4%). Seizures were found in 66.1% of cases. The rest recordings were abnormal in 41.8% with prevalence of generalized paroxysm. Eight patterns of PPR were observed, being polyspike mixed to slow wave the most frequent (53%). The epileptic group showed a bimodal distribution in the several bands of photic stimulation, near 8 and 20-24 Hz. A sustained paroxysmal abnormality persisting after the photic stimulation was present in 6 epileptic patients.
publisher Academia Brasileira de Neurologia - ABNEURO
publishDate 1990
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X1990000300006
work_keys_str_mv AT muszkatmauro photoparoxysmalresponses
AT guimaraesrosanam photoparoxysmalresponses
AT silvaademirbda photoparoxysmalresponses
AT camposcarlosjreisde photoparoxysmalresponses
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