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Generalized periodic epileptiform discharges in a child with Dravet syndrome

Brian D Moseley1, Elaine C Wirrell, Katherine Nickels

  • 1Department of Neurology, Mayo Clinic, Rochester, Minnesota 55905, USA. moseley.brian@mayo.edu

Journal of Child Neurology
|February 22, 2011
PubMed

Insights

Generalized periodic epileptiform discharges, rare in children, can indicate seizures. This case highlights their occurrence in a boy with cerebral visual impairment and SCN1A gene mutation, consistent with Dravet syndrome.

Area of Science:

  • Neurology
  • Genetics
  • Pediatrics

Background:

  • Generalized periodic epileptiform discharges (GPEDs) are rare in children but can precede seizures.
  • Cerebral visual impairment (CVI) is associated with various seizure types, especially occipital lobe epilepsy.

Observation:

  • A 10-month-old boy presented with GPEDs post-status epilepticus.
  • He experienced further seizures and developed CVI, which resolved after seizure cessation.

Findings:

  • The patient had a de novo mutation in the SCN1A gene, confirming Dravet syndrome.
  • GPEDs in this context suggest a link between SCN1A mutations, seizures, and CVI.

Implications:

  • This case underscores the importance of recognizing GPEDs in pediatric epilepsy.
  • Early genetic testing for SCN1A mutations is crucial for diagnosing Dravet syndrome.
  • Understanding the association between GPEDs, CVI, and SCN1A mutations can guide clinical management and prognosis.

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