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[Accidental epileptic seizures in children]
Insights
Children experiencing a first unexplained seizure without EEG abnormalities have a low risk of recurrence. However, infants under 1 year with generalized seizures and abnormal EEGs face a higher risk of recurrent epileptic events.
Area of Science:
- Pediatric Neurology
- Epileptology
Context:
- First-time seizures in children require accurate prognostication.
- Distinguishing isolated seizures from epilepsy is crucial for management.
Purpose:
- To identify risk factors for seizure recurrence in children after a first non-febrile, non-symptomatic seizure.
- To differentiate between isolated seizures and epilepsy based on clinical and EEG features.
Summary:
- A 6-year, 5-month observational study of 71 children with first seizures identified 19 cases of isolated unexplained seizures with no EEG abnormalities, which did not recur.
- These "accidental seizures" were classified as atonic in young children (1-4 years) and partial in older children.
- Risk factors for recurrence were analyzed, indicating a low risk for 1-4 year olds with atonic seizures and no EEG abnormalities, but a high risk for infants under 1 year with generalized seizures and abnormal interictal EEGs.
Impact:
- Provides valuable data for predicting seizure recurrence in pediatric populations.
- Informs clinical decision-making regarding diagnosis and treatment of childhood seizures.
- Contributes to a better understanding of the spectrum of childhood epilepsy.
Abstract:
The authors report a series of 71 children admitted to a general pediatric hospital for a first non febrile, non symptomatic seizure and observed for an average of 6 years and 5 months. Among these patients, 19 cases corresponded to an isolated unexplained seizure without paroxysmal E.E.G. abnormalities, which did not reappear without treatment in a mean follow-up period fo 5 years and 3 months. The typical features of these "accidental seizures" are compared with other types of epilepsy. Finally, these "accidental seizures" can be classified into 2 groups: atonic seizures in the young child (1-4 years) and partial seizures in older children. A statistical analysis was undertaken to define the risk factors for recurrence after the first epileptic attack. A low recurrence risk is expected for children between 1 to 4 years with atonic type of seizures without paroxysmal E.E.G. abnormalities while there is a high recurrence risk for children under 1 year with generalized seizures and paroxysmal E.E.G. intercritical abnormalities.