Conditions / Genetic

developmental delay with sleep apnea

info ยท Genetic

An autosomal dominant intellectual developmental disorder characterized by hypotonia, global developmental delay, central and/or obstructive sleep apnea, and feeding difficulties that has_material_basis_in heterozygous mutation in the KCNK3 gene on chromosome

An autosomal dominant intellectual developmental disorder characterized by hypotonia, global developmental delay, central and/or obstructive sleep apnea, and feeding difficulties that has_material_basis_in heterozygous mutation in the KCNK3 gene on chromosome 2p23.

Signs and symptoms

  • Tented upper lip vermilion
  • Flexion contracture
  • Hypotonia
  • Gastroesophageal reflux
  • Hypertelorism
  • Constipation
  • Cleft palate
  • Absent speech
  • Joint hypermobility
  • Feeding difficulties

Also known as: DDSA