Infantile epileptic encephalopathy, transient choreoathetotic movements, and hypersomnia due to a De Novo missense mutation in the SCN2A gene.

Abstract:

:Mutations of the SCN2A gene have originally been described in association with benign familial neonatal-infantile seizures (BFNIS). Recently, single patients with more severe phenotypes and persisting epileptic encephalopathies have been recognized. We report the case of a girl with severe infantile onset epileptic encephalopathy and a de novo missense mutation in the SCN2A gene (c.4025T > C/ = ; p.L1342P/ = ), who presented with a transient choreatic movement disorder, hypersomnia, and progressive brain atrophy. Whole exome sequencing did not reveal any other disease causing mutation. Our patient contributes to the expanding phenotypic spectrum of SCN2A-related disorders and underlines the importance of genetic workup in epileptic encephalopathies.

journal_name

Neuropediatrics

journal_title

Neuropediatrics

authors

Hackenberg A,Baumer A,Sticht H,Schmitt B,Kroell-Seger J,Wille D,Joset P,Papuc S,Rauch A,Plecko B

doi

10.1055/s-0034-1372302

subject

Has Abstract

pub_date

2014-08-01 00:00:00

pages

261-4

issue

4

eissn

0174-304X

issn

1439-1899

journal_volume

45

pub_type

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