The frequency-amplitude gradient in the sleep EEG of children and its diagnostic significance
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 neuro...
| Main Authors: | Aucélio, Carlos Nogueira, Niedermeyer, Ernst, Melo, Áurea Nogueira de |
|---|---|
| Format: | Artigo |
| Language: | English |
| Published: |
Academia Brasileira de Neurologia - ABNEURO
2017
|
| Subjects: | |
| Online Access: |
http://repositorio.unb.br/handle/10482/26828 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: |
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. |
|---|