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Infantile refractory seizures due to de novo KCNT 1 mutation

Mahdi Alsaleem1, Vivien Carrion2, Arie Weinstock3

  • 1Pediatrics, Children's Mercy Hospital, University of Kansas, Wichita, Kansas, USA dmahdialsaleem@hotmail.com.

BMJ Case Reports
|October 27, 2019
PubMed

Insights

A female infant experienced severe seizures resistant to standard treatments. Genetic testing identified a KCNT1 gene mutation, leading to targeted therapy and improved outcomes for this rare epilepsy.

Area of Science:

  • Pediatric Neurology
  • Clinical Genetics

Background:

  • Epilepsy in infancy presents a significant diagnostic and therapeutic challenge.
  • Refractory seizures necessitate comprehensive etiological investigation.

Observation:

  • A term female infant exhibited intractable focal seizures from early infancy.
  • Clinical manifestations and electroencephalogram (EEG) findings indicated severe epilepsy.

Findings:

  • Genetic analysis revealed a mutation in the KCNT1 gene.
  • This mutation is linked to severe infantile epilepsies, including nocturnal frontal lobe epilepsy and epilepsy of infancy with migrating focal seizures.
  • The patient's seizures were refractory to conventional antiepileptic drugs.

Implications:

  • KCNT1 gene mutations are a critical target for diagnosing and managing specific infantile epilepsy syndromes.
  • A combination of traditional and non-traditional antiepileptic therapies can be effective in refractory cases.
  • Early genetic diagnosis and tailored treatment strategies are vital for improving outcomes in infants with severe epilepsy.

Keywords:
epilepsy and seizuresneuro geneticsneurology (drugs and medicines)

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