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Partial epilepsies in infancy: a study of 40 cases
Insights
This study examines partial epilepsy in young children, finding most cases begin between 2 months and 2 years. Early diagnosis and understanding seizure types are crucial for managing childhood epilepsy.
Area of Science:
- Pediatric Neurology
- Epileptology
- Clinical Neurophysiology
Background:
- Partial epilepsy beginning in early childhood presents diagnostic challenges.
- Understanding the evolution and classification of infantile epilepsy is critical.
Purpose of the Study:
- To analyze clinical and EEG features of partial epilepsy with onset before age 3.
- To investigate the etiologic circumstances and psychomotor development in these patients.
- To discuss classification issues in infantile seizures and epilepsies.
Main Methods:
- Retrospective analysis of 40 patients with partial epilepsy.
- Data collected: age at onset, seizure characteristics, EEG findings, etiology, and development.
- Follow-up duration ranged from 1 year 9 months to 20 years.
Main Results:
- Epilepsy onset predominantly between 2 months and 2 years (over two-thirds of cases).
- Most patients had partial symptomatic epilepsy; nine cases were preceded by febrile convulsions.
- Seizure types at onset included unilateral, complex partial, and elementary partial seizures.
Conclusions:
- Early-onset partial epilepsy is often symptomatic and presents with diverse seizure types.
- Classification of infantile seizures and epilepsies requires further refinement.
- Long-term follow-up is essential for understanding epilepsy evolution and developmental outcomes.
Abstract:
Forty patients with partial epilepsy that began before they were aged 3 years were recorded at the Centre Saint-Paul between 1981 and 1986 with a follow-up ranging from 1 year 9 months to 20 years. We analyzed the following data: age at onset, clinical features of seizures at onset and during the follow-up period, ictal and interictal EEG features, etiologic circumstances, evolution of the epilepsy, and psychomotor development. The age of onset was mostly between 2 months and 2 years (more than two thirds of cases). Most had partial symptomatic epilepsy. In nine cases, epilepsy was preceded by febrile convulsions. Seizures at onset were of the following type (in order of decreasing occurrence): unilateral seizures, complex partial seizures, elementary partial seizures, and other seizures, often difficult to classify. A few patients with infantile spasms associated with focal or multifocal EEG abnormalities, differing from West's syndrome, were included in this study. We discuss the problem arising from the classification of infantile seizures and epilepsies.