Periodic EEG patterns: importance of their recognition and clinical significance

Periodic electroencephalographic (EEG) patterns consist of discharges usually epileptiform in appearance, which occur at regular intervals, in critical patients. They are commonly classified as periodic lateralized epileptiform discharges (PLEDs), bilateral independent PLEDs or BIPLEDs, generalized...

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Main Authors: Maria Emilia Cosenza Andraus, Cesar Fantezia Andraus, Soniza Vieira Alves-Leon
Format: Article
Language:English
Published: Thieme Revinter Publicações 2012-02-01
Series:Arquivos de Neuro-Psiquiatria
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2012000200014&lng=en&tlng=en
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author Maria Emilia Cosenza Andraus
Cesar Fantezia Andraus
Soniza Vieira Alves-Leon
author_facet Maria Emilia Cosenza Andraus
Cesar Fantezia Andraus
Soniza Vieira Alves-Leon
author_sort Maria Emilia Cosenza Andraus
collection DOAJ
description Periodic electroencephalographic (EEG) patterns consist of discharges usually epileptiform in appearance, which occur at regular intervals, in critical patients. They are commonly classified as periodic lateralized epileptiform discharges (PLEDs), bilateral independent PLEDs or BIPLEDs, generalized epileptiform discharges (GPEDs) and triphasic waves. Stimulus-induced rhythmic, periodic or ictal discharges (SIRPIDs) are peculiar EEG patterns, which may be present as periodic discharges. The aim of this study is to make a review of the periodic EEG patterns, emphasizing the importance of their recognition and clinical significance. The clinical significance of the periodic EEG patterns is uncertain, it is related to a variety of etiologies, and many authors suggest that these patterns are unequivocally epileptogenic in some cases. Their recognition and classification are important to establish an accurate correlation between clinical, neurological, laboratorial and neuroimaging data with the EEG results.
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publisher Thieme Revinter Publicações
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series Arquivos de Neuro-Psiquiatria
spelling doaj-art-d52fcbef8c2645cba2b84db73f0c56fe2025-08-20T03:19:42ZengThieme Revinter PublicaçõesArquivos de Neuro-Psiquiatria1678-42272012-02-0170214515110.1590/S0004-282X2012000200014S0004-282X2012000200014Periodic EEG patterns: importance of their recognition and clinical significanceMaria Emilia Cosenza Andraus0Cesar Fantezia Andraus1Soniza Vieira Alves-Leon2Santa Casa de Misericórdia do Rio de JaneiroUniversidade Federal do Rio de JaneiroUniversidade Federal do Rio de JaneiroPeriodic electroencephalographic (EEG) patterns consist of discharges usually epileptiform in appearance, which occur at regular intervals, in critical patients. They are commonly classified as periodic lateralized epileptiform discharges (PLEDs), bilateral independent PLEDs or BIPLEDs, generalized epileptiform discharges (GPEDs) and triphasic waves. Stimulus-induced rhythmic, periodic or ictal discharges (SIRPIDs) are peculiar EEG patterns, which may be present as periodic discharges. The aim of this study is to make a review of the periodic EEG patterns, emphasizing the importance of their recognition and clinical significance. The clinical significance of the periodic EEG patterns is uncertain, it is related to a variety of etiologies, and many authors suggest that these patterns are unequivocally epileptogenic in some cases. Their recognition and classification are important to establish an accurate correlation between clinical, neurological, laboratorial and neuroimaging data with the EEG results.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2012000200014&lng=en&tlng=eneletroencefalografiaPLEDsBIPLEDsGPEDsondas trifásicasSIRPIDs
spellingShingle Maria Emilia Cosenza Andraus
Cesar Fantezia Andraus
Soniza Vieira Alves-Leon
Periodic EEG patterns: importance of their recognition and clinical significance
Arquivos de Neuro-Psiquiatria
eletroencefalografia
PLEDs
BIPLEDs
GPEDs
ondas trifásicas
SIRPIDs
title Periodic EEG patterns: importance of their recognition and clinical significance
title_full Periodic EEG patterns: importance of their recognition and clinical significance
title_fullStr Periodic EEG patterns: importance of their recognition and clinical significance
title_full_unstemmed Periodic EEG patterns: importance of their recognition and clinical significance
title_short Periodic EEG patterns: importance of their recognition and clinical significance
title_sort periodic eeg patterns importance of their recognition and clinical significance
topic eletroencefalografia
PLEDs
BIPLEDs
GPEDs
ondas trifásicas
SIRPIDs
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2012000200014&lng=en&tlng=en
work_keys_str_mv AT mariaemiliacosenzaandraus periodiceegpatternsimportanceoftheirrecognitionandclinicalsignificance
AT cesarfanteziaandraus periodiceegpatternsimportanceoftheirrecognitionandclinicalsignificance
AT sonizavieiraalvesleon periodiceegpatternsimportanceoftheirrecognitionandclinicalsignificance