Age at epilepsy onset in patients with focal cortical dysplasias, gangliogliomas and dysembryoplastic neuroepithelial tumours.
Seizure
; 58: 82-89, 2018 May.
Article
em En
| MEDLINE
| ID: mdl-29677585
ABSTRACT
PURPOSE:
The age at epilepsy onset in patients with inborn or very early acquired brain lesions depends on the epileptogenic potential of the lesion and the patients' individual "susceptibility" to epileptic seizures. To gain insight into these determinants, we analysed the case history of patients with focal cortical dysplasias (FCDs) and neuroglial tumours.METHODS:
In a systematic, retrospective analysis comprised of 233 patients who underwent surgery (116 with FCDs and 117 with neuroglial tumours), we evaluated the age at epilepsy onset according to histopathologic subgroups, lesion location and family history.RESULTS:
Epilepsy onset was significantly earlier in patients with FCD than for those with neuroglial tumours (FCDs 8.06⯱â¯0.74â¯years, gangliogliomas 15.86⯱â¯1.24â¯years, dysembryoplastic neuroepithelial tumours (DNTs) 19.18⯱â¯2.47â¯years; pâ¯<â¯0.00001). FCDs were most frequently located in the frontal, whereas neuroglial tumours most frequently in the temporal lobe. For FCD patients, the age at epilepsy onset was not dependent on lesion location, whereas DNTs in a temporal location were associated with a later epilepsy onset than gangliogliomas and extratemporal DNTs. A positive family history for epilepsy or epileptic seizures was found more frequently among patients with FCDs (FCDs 20.4%, neuroglial tumours 8.1%; pâ¯=â¯0.013).CONCLUSION:
We postulate that the age difference at epilepsy onset between patients with FCDs and neuroglial tumours can be attributed - at least partially - to unidentified genetic factors underlying the epileptogenic potential of the brain tissue. Additionally, the large variance in the age at epilepsy onset is possibly also genetically determined.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Encefálicas
/
Neoplasias Neuroepiteliomatosas
/
Ganglioglioma
/
Epilepsia
/
Malformações do Desenvolvimento Cortical
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
/
Middle aged
Idioma:
En
Revista:
Seizure
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2018
Tipo de documento:
Article