[Digital EEG with brain mapping in Alzheimer's dementia and Parkinson's disease. A prospective controlled study]. / Eletrencefalograma digital com mapeamento em demência de Alzheimer e doença de Parkinson: estudo prospectivo controlado.
Arq Neuropsiquiatr
; 54(1): 50-6, 1996 Mar.
Article
em Pt
| MEDLINE
| ID: mdl-8736145
ABSTRACT
In order to evaluate the EEG activity during wakefulness in senile dementia of the Alzheimer type (AD) and Parkinson's disease (PD), a prospective controlled study was performed. We compared 6 AD and 11 PD patients with a control group of 12 patients with mild to moderate major chronic depression (DSM-III-R, 1987). The median of the frequencies and the power of the posterior dominant activity was obtained in the three groups using spectral analysis. The posterior activity had a frequency of 8.79 +/- 0.52 (mean +/- sd) in the control group, 6.65 +/- 0.80 (mean +/- sd) in the AD group and 7.69 +/- 1.39 (mean +/- sd) in the PD group. The experimental hypothesis that patients with AD and PD differ from controls in relation to the background activity (defined as abnormal < 8) was confirmed by the chi square test (p = 0.01) and the t test showed that the mean of the frequency of the posterior power was significantly lower in AD (p = 0.01) and PD (p = 0.05) patients, compared with the controls. The results indicate that this abnormality could be correlated with the degree of cortical damage and natural history of these disorders.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doença de Parkinson
/
Mapeamento Encefálico
/
Demência
/
Eletroencefalografia
Tipo de estudo:
Clinical_trials
/
Observational_studies
Limite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Pt
Revista:
Arq Neuropsiquiatr
Ano de publicação:
1996
Tipo de documento:
Article