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Updated: Feb 9, 2026
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Electrophoretic Delivery of γ-aminobutyric Acid GABA into Epileptic Focus Prevents Seizures in Mice
Published on: May 16, 2019
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Epileptic seizure semiology in different age groups
Guadalupe Fernandez-Baca Vaca1, Carlos L Mayor2, Naira García Losarcos3
1University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA.
Summary
Seizure semiology evolves with age, with focal epilepsy becoming more common in older children. Understanding these age-related changes in seizure patterns is crucial for localizing the epileptogenic zone in epilepsy patients.
Area of Science:
- Neurology
- Epileptology
- Developmental Neuroscience
Background:
- Seizure semiology aids in localizing the epileptogenic zone (EZ), essential for epilepsy surgery.
- Age-related changes in seizure semiology are not well-characterized across diverse age groups.
Purpose of the Study:
- To investigate age-specific patterns in seizure semiology.
- To characterize how seizure types and localization of the EZ change with maturation.
Main Methods:
- Retrospective review of video-electroencephalography (EEG) data from 270 pediatric and adult epilepsy patients.
- Independent, blinded classification of seizure semiology by authors.
- Analysis of semiological data stratified by age groups.
Main Results:
- The epileptogenic zone (EZ) location varied by age: posterior quadrant (infants), temporal lobe (3-6 years), frontal lobe (6-10 years), and temporal lobe (adults >18 years).
- Auras, automotor, and generalized tonic-clonic seizures were rare in children under 10.
- Infants (<3 years) predominantly experienced simple motor and hypomotor seizures.
Conclusions:
- Seizure semiology demonstrates significant age-dependent variations, reflecting cortical maturation.
- These findings enhance understanding of epilepsy progression and aid in EZ localization across the lifespan.
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