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Characteristics of epilepsy occurring in the first four months
Tatsuya Fukasawa1, Motomasa Suzuki2, Toru Kato3
1Department of Pediatrics, Anjo Kosei Hospital, Aichi, Japan.
Insights
Early infantile epilepsies are rare. This study analyzed 73 patients, finding that non-idiopathic epilepsy often shows age-dependent seizure evolution, crucial for identifying epilepsy surgery candidates.
Area of Science:
- Neurology
- Pediatric Epilepsy
- Clinical Neuroscience
Background:
- Early infantile epilepsies are uncommon and poorly understood.
- Characterizing these rare conditions is essential for diagnosis and treatment.
Purpose of the Study:
- To determine the clinical characteristics of epilepsies presenting in early infancy.
- To identify potential candidates for early surgical intervention.
Main Methods:
- Retrospective analysis of 73 patients with epilepsy onset within the first four months of life.
- Classification into idiopathic, cryptogenic, and symptomatic groups.
- Detailed review of seizure types, onset, evolution, and treatment outcomes.
Main Results:
- A significant proportion of idiopathic (70%), cryptogenic (47%), and symptomatic (29%) epilepsies began within the first month of life.
- Partial seizures (PS) were common across all groups, with some evolving into spasms in non-idiopathic cases.
- Remission for at least one year was observed in 100% of idiopathic, 68% of cryptogenic, and 38% of symptomatic epilepsy patients.
Conclusions:
- Non-idiopathic early infantile epilepsies frequently exhibit age-dependent changes in seizure types.
- Early recognition of these evolving seizure patterns is vital for surgical candidacy assessment.
- This understanding can guide therapeutic strategies and improve patient outcomes.
Introduction:
Epilepsies with an onset during the early infantile period are relatively rare and their characteristics are not well recognized. The aim of this study was to determine the clinical characteristics of epilepsies with an onset during the early infantile period.
Methods:
Clinical information on 73 patients with the onset of epilepsy within the first four months was collected from hospitals affiliated with Nagoya University. Patients were categorized into three groups: the idiopathic (20 patients), cryptogenic (19 patients), and symptomatic groups (34 patients).
Results:
Fourteen (70%) of the 20 patients in the idiopathic group, nine (47%) of the 19 patients in the cryptogenic group, and 10 (29%) of the 34 patients in the symptomatic group had their first seizure within the first month of life. All patients in the idiopathic group, 12 patients (63%) in the cryptogenic group, and 18 patients (53%) in the symptomatic group had partial seizures (PS) alone throughout their clinical course. Four patients in the cryptogenic group and nine in the symptomatic group had PS at the onset, but evolved into spasms later. All patients in the idiopathic group, 13 patients (68%) in the cryptogenic group, and 13 patients (38%) in symptomatic group had experienced no seizures for at least one year at the time of the last follow-up.
Conclusions:
In patients with non-idiopathic epilepsy, an age-dependent evolution of seizure types was often observed. Recognition of this subgroup of patients could be important for the identification of appropriate candidates for early epilepsy surgery.
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