Significado do eletrencefalograma no diagnóstico de crise convulsiva única em crianças

Ribeiro, Rubens Moura; Armbrust-Figueiredo, Jorge; Ribeiro, Valeriana Moura

doi:10.1590/S0004-282X1965000300003

Resumos

Foram estudadas, do ponto de vista eletrencefalográfico, 20 crianças que apresentaram crise convulsiva única, com intuito de verificar se nessas condições já ocorrem alterações que possam estar relacionadas com processos orgânicos encefálicos. Considerado de maneira global, o EEG mostrou-se alterado em 13 casos (65%) e foi normal em 7 (35%); as alterações foram do tipo focal em 12 casos e difusas em um. Os eletrencefalogramas com rítmo de base irregular e disritmia paroxística registrada durante a ativação pela hiperpnéia (8 casos ou 40%) corresponderam aos pacientes que, ulteriormente, apresentaram recorrência da convulsão.

The authors studied the EEG of 20 children with history of a single epileptic seizure, in order to establish a presumptive pathological factor in the central nervous system. In this series, 13 patients (65%) had abnormal tracings, and 7 (35%) had normal EEG records. The most frequent abnormality found was a focal change, recorded in 12 patients, while the diffuse type was found in just one. Abnormal tracings, either at rest or during overventilation, were most frequently seen in 8 patients which had recurrent seizures, registered in a three years follow-up.

Rubens Moura Ribeiro^I; Jorge Armbrust-Figueiredo^II; Valeriana Moura Ribeiro^I

^IAssistente; Trabalho da Clínica Neurológica da Faculdade de Medicina de Ribeirão Prêto, da Universidade de São Paulo

^IIProfessor; Trabalho da Clínica Neurológica da Faculdade de Medicina de Ribeirão Prêto, da Universidade de São Paulo

RESUMO

Foram estudadas, do ponto de vista eletrencefalográfico, 20 crianças que apresentaram crise convulsiva única, com intuito de verificar se nessas condições já ocorrem alterações que possam estar relacionadas com processos orgânicos encefálicos. Considerado de maneira global, o EEG mostrou-se alterado em 13 casos (65%) e foi normal em 7 (35%); as alterações foram do tipo focal em 12 casos e difusas em um. Os eletrencefalogramas com rítmo de base irregular e disritmia paroxística registrada durante a ativação pela hiperpnéia (8 casos ou 40%) corresponderam aos pacientes que, ulteriormente, apresentaram recorrência da convulsão.

ABSTRACT

The authors studied the EEG of 20 children with history of a single epileptic seizure, in order to establish a presumptive pathological factor in the central nervous system. In this series, 13 patients (65%) had abnormal tracings, and 7 (35%) had normal EEG records. The most frequent abnormality found was a focal change, recorded in 12 patients, while the diffuse type was found in just one. Abnormal tracings, either at rest or during overventilation, were most frequently seen in 8 patients which had recurrent seizures, registered in a three years follow-up.

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1. AASS, F.; KAADA, B. R. & TORP, K. H. - The diagnosis and prognostic value of the initial electroencephalogram in children with convulsions. Acta pae-diat. 45:335-342, 1956.
2. BAIRD, H. W. - Convulsions in infancy and childhood. Pediat. Clin. N. Amer. 10:705-721, 1963.
3. BREG, W. R. & YANAET, H. - The child in a convulsion. Pediat. Clin. N. Amer. 9:101-112, 1962.
4. CARTER, S. - Diagnosis and treatment: management of the child who has had one convulsion. Pediatrics, 33:431-434, 1964.
5. CHAO, D. H.-C; DRUCKMAN, R. & KELLAWAY, P. - Convulsive Disorders of Children. W. B. Saunders Co., Philadelphia, 1958.
6. FOIS, A. - Clinical Electroencephalography in Epilepsy and Related Conditions in Children. Charles C. Thomas, Springfield (Illinois), 1963.
7. GIBBS, F. A. & GIBBS, E. L. - Atlas of Electroencephalography, vol. 1. Addison-Wesley, Cambridge (Mass), 1958.
8. HARRIS, R. & AIZARD, J. P. M. - The electroencephalogram in neonatal convulsions. J. Pediat. 57:501-520, 1960.
9. HUGHES, R. R. - An Introduction to Clinical Electroencephalography. John Wright and Sons, Bristol, 1961.
10. JUUL-JENSEN, P. - Epilepsy: a clinical and social analysis of 1020 adult patients with epileptic seizures. Acta Neurol. Scandinavica, supl. 5, 1964.
11. KEITH, H. M. - Convulsive Disorders in Children. Little Brown Co., Boston, 1963.
12. KILOH, L. G. & OSSELTON, J. W. - Clinical Electroencephalography. Butterworths, London, 1961.
13. ZIMMERMAN, H. M. - The basis of convulsive attacks in children: an experimental study. Bull. N. Y. Acad. Med. 35: 801-809, 1959.