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[Temporal lobe epilepsy. Aetiological classification in 61 paediatric patients]
J González de la Aleja Tejera1, J M Sepúlveda Sánchez, R Simón de las Heras
1Unidad de Neurología Infantil, Hospital Universitario 12 de Octubre, Madrid, España. Jesus_goal@yahoo.es
Insights
This study analyzed 61 children with new-onset temporal lobe epilepsy (TLE), finding that symptomatic causes and mesial temporal sclerosis were common. A modified classification improves etiological grouping for pediatric TLE.
Area of Science:
- Pediatric Neurology
- Epileptology
- Neuroimaging
Context:
- Limited research exists on the causes of childhood temporal lobe epilepsy (TLE).
- Understanding TLE etiology in children is crucial for accurate diagnosis and treatment.
- This study addresses the need for comprehensive etiological data in pediatric TLE.
Purpose:
- To describe the etiology of new-onset temporal lobe epilepsy (TLE) in 61 children.
- To analyze the etiological classification of pediatric TLE.
- To propose a modified classification for TLE in children.
Summary:
- A retrospective analysis of 61 children with TLE was performed.
- Patients were categorized into symptomatic TLE (41%), mesial temporal sclerosis (28%), and cryptogenic epilepsy (31%).
- Common in mesial temporal sclerosis group: history of febrile seizures. Common in symptomatic group: temporal lesions or significant history.
Impact:
- This study presents the largest pediatric series of new-onset TLE assessed by MRI.
- The findings contribute to a better understanding of TLE causes in children.
- A modified etiological classification is proposed for improved clinical relevance.
Introduction:
There are very few studies on the aetiology of temporal lobe epilepsy (TLE) in childhood. The purpose of the present study is to analyse the data of 61 children diagnosed with TLE, in order to describe the aetiology of TLE in children seen in a neuropaedriatic clinic. We also discuss the currently proposed classification.
Patients And Methods:
A retrospective analysis was carried out on patients diagnosed with TLE. Patients consisted of 61 children less than 15 years old.
Results:
Patients were classified into three groups: Group 1 (symptomatic temporal lobe epilepsy) consisted of 25 patients (40.98 %) with any temporal lesion on neuroimaging (tumours, malformations or infections) or significant history; Group 2 (Mesial temporal sclerosis) consisted of 17 patients (27.86 %), a history of simple and complex febrile seizure were common in this group; and Group 3 (Cryptogenic epilepsy) consisted of 19 patients (31.15 %) with no abnormalities on neuroimaging or significant history.
Conclusion:
To our knowledge, this is the largest paediatric series of childhood new-onset TLE assessed only by MRI in the literature. We have modified the previous aetiological classification in order to make the groups more realistic.
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