Neonatal genetic epilepsies display convergent white matter microstructural abnormalities.
Epilepsia
; 61(12): e192-e197, 2020 12.
Article
em En
| MEDLINE
| ID: mdl-33098118
ABSTRACT
White matter undergoes rapid development in the neonatal period. Its structure during and after development is influenced by neuronal activity. Pathological neuronal activity, as in seizures, might alter white matter, which in turn may contribute to network dysfunction. Neonatal epilepsy presents an opportunity to investigate seizures and early white matter development. Our objective was to determine whether neonatal seizures in the absence of brain injury or congenital anomalies are associated with altered white matter microstructure. In this retrospective case-control study of term neonates, cases had confirmed or suspected genetic epilepsy and normal brain magnetic resonance imaging (MRI) and no other conditions independently impacting white matter. Controls were healthy neonates with normal MRI results. White matter microstructure was assessed via quantitative mean diffusivity (MD). In 22 cases, MD was significantly lower in the genu of the corpus callosum, compared to 22 controls, controlling for gestational age and postmenstrual age at MRI. This finding suggests convergent abnormal corpus callosum microstructure in neonatal epilepsies with diverse suspected genetic causes. Further study is needed to determine the specific nature, causes, and functional impact of seizure-associated abnormal white matter in neonates, a potential pathogenic mechanism.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Epilepsia Neonatal Benigna
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Substância Branca
Tipo de estudo:
Observational_studies
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Risk_factors_studies
Limite:
Female
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Humans
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Male
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Newborn
Idioma:
En
Revista:
Epilepsia
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Estados Unidos