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GENATLAS PHENOTYPE
last update : 05-01-2015
Symbol EIEE5
Location 9q34.11
Name epileptic encephalopathy, early infantile, 5
Corresponding gene SPTAN1
Main clinical features
  • early onset of tonic spasms, seizure intractability, a characteristic suppression-burst pattern on the electroencephalogram (EEG) and poor outcome with severe psychomotor retardation
  • profound mental retardation with lack of visual attention and speech development, as well as spastic quadriplegia
  • brain MRI showed diffuse hypomyelination and widespread brain atrophy affecting the cortex, corpus callosum, brainstem, pontocerebellar atrophy, and progressive microcephaly
  • Genetic determination autosomal dominant
    Function/system disorder neurology
    Type disease
    Remark(s)