Successful Treatment of Electrographic Status Epilepticus of Sleep with Felbamate in a Patient with SLC9A6 Mutation

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Abstract

Background Mutations of SLC9A6 may cause an X-linked clinical syndrome first described by Christianson in 1999 in which affected males exhibited profound intellectual disability, autism, drug-resistant epilepsy, ophthalmoplegia, mild craniofacial dysmorphism, microcephaly, and ataxia. Methods We describe a child with an SLC9A6 mutation and an electroencephalographic pattern consistent with electrographic status epilepticus of sleep. Results Our patient's electrographic status epilepticus of sleep resolved after treatment with felbamate. Following treatment, he remained seizure-free but did not make significant or lasting gains in language. Conclusion Our report extends the clinical epilepsy phenotype in children with SLC9A6 mutations to include electrographic status epilepticus of sleep. In addition, felbamate was an effective treatment for electrographic status epilepticus of sleep in our patient.

Original languageEnglish
Pages (from-to)527-531
Number of pages5
JournalPediatric Neurology
Volume53
Issue number6
DOIs
StatePublished - Jan 1 2015

Keywords

  • Christianson syndrome
  • ESES
  • SLC9A6
  • epilepsy
  • felbamate

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