First epileptic crisis. Analysis of risk factors for recurrence

We studied children who presented with a first seizure and came to the outpatient clinic for childhood from September/1989 to July/1996. The following risk factors were assessed: age, sex, type and etiology of the seizure, sleep state at time of seizure, family history of seizures, electroencephalog...

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Bibliographic Details
Published in:Arquivos de neuro-psiquiatria 1999-06, Vol.57 (2B), p.392
Main Authors: Scotoni, A E, Guerreiro, M M, De Abreu, H J
Format: Article
Language:Portuguese
Subjects:
Adolescent
Child
Child, Preschool
Epilepsy - epidemiology
Female
Humans
Infant
Male
Recurrence
Risk Factors
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Summary:We studied children who presented with a first seizure and came to the outpatient clinic for childhood from September/1989 to July/1996. The following risk factors were assessed: age, sex, type and etiology of the seizure, sleep state at time of seizure, family history of seizures, electroencephalogram (EEG) and computerized tomography (CT). Our purpose was to assess the risk factors in univariable and multivariable analysis. We found two groups of patients according to the etiology: (a) idiopathic cases (IC) and (b) symptomatic cases (SC). This last group had only two patients and was excluded from the analysis. We studied only the IC group with 86 patients. Seizure recurrence was observed 29 children (33%), during 2.4 years. Only patients with abnormal EEG and family history for unprovoked seizures had a higher risk of recurrence (p < 0.003). After the first unprovoked seizure estimate of recurrence by survival curves was 18% at first semester, 27% at first year, 35% at second year and 38% at third year.
ISSN:0004-282X