Conditions / Genetic

developmental and epileptic encephalopathy 17

info ยท Genetic

A developmental and epileptic encephalopathy characterized by onset in the first weeks or months of life of intractable seizures and very poor psychomotor development that has_material_basis_in heterozygous mutation in the GNAO1 gene on chromosome 16q13.

Signs and symptoms

  • Absent speech
  • Inability to walk
  • Global developmental delay
  • Generalized tonic seizure
  • Epileptic encephalopathy
  • EEG with burst suppression
  • Cerebral atrophy
  • Hypsarrhythmia
  • Delayed CNS myelination
  • Hypoplasia of the corpus callosum

Also known as: DEE17; early infantile epileptic encephalopathy 17