Conditions / Genetic

Andersen-Tawil syndrome

info ยท Genetic

A long QT syndrome that has_material_basis_in autosomal dominant inheritance of a mutation in the KCNJ2 gene which disrupts the rhythm of the heart's lower chambers (ventricular arrhythmia) and results_in an unusually small lower jaw (micrognathia), low-set ea

A long QT syndrome that has_material_basis_in autosomal dominant inheritance of a mutation in the KCNJ2 gene which disrupts the rhythm of the heart's lower chambers (ventricular arrhythmia) and results_in an unusually small lower jaw (micrognathia), low-set ears, and an abnormal curvature of the fingers called clinodactyly.

Signs and symptoms

  • Hypertelorism
  • Dental crowding
  • Thin upper lip vermilion
  • Periodic paralysis
  • Small hand
  • Micrognathia
  • Toe syndactyly
  • Short foot
  • Short stature
  • Short metacarpal

Also known as: ANDERSEN CARDIODYSRHYTHMIC PERIODIC PARALYSIS; Andersen syndrome; LQT7; Long QT syndrome 7; Potassium-Sensitive Cardiodysrhythmic Type