Buchumschlag

The frequency-amplitude gradient in the sleep EEG of children and its diagnostic significance

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Bibliographische Detailangaben
1. Verfasser: Aucélio, Carlos Nogueira
Publikationsdatum: 2007
Weitere Verfasser: Niedermeyer, Ernst, Melo, Áurea Nogueira de
Format: Article
Sprache: eng
Quelle: Repositório Institucional da UnB
Download full: http://repositorio.unb.br/handle/10482/26828
https://dx.doi.org/10.1590/S0004-282X2007000200004
Zusammenfassung: OBJECTIVE: 1014 EEGs of children in the 3-months to 12-years age group were obtained during sleep with the purpose of assessing the frequency and amplitude gradient (FAG) its absence thought to be an indicator of neurological disorder. METHOD: FAG findings were divided into present/absent. The neurological findings were classified according to the presence (abnormal neurological finding-ANF) or absence (normal neurological finding-NNF) of neurological disorder. The association and significance between FAG and neurological findings was determined by prevalence ration (PR) and chi-square test (chi2). RESULTS: FAG showed a characteristic distributions of voltage output during non-REM sleep, stage II, in the 3-months to 5-years age group with NNF. The PR and the chi2 test demonstrated a strong association between FAG absent and ANF. CONCLUSION: FAG is an age-dependent EEG sleep parameter and absence of FAG in the 3-months to 5-years age group is highly suggestive of neurological disorder.

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