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Cardiodysrhythmic potassium-sensitive periodic paralysis

Disease definition

Andersen's syndrome (AS) is a rare disorder characterized by periodic muscle paralysis, prolongation of the QT interval with a variety of ventricular arrhythmias (leading to predisposition to sudden cardiac death) and characteristic physical features: short stature, scoliosis, low-set ears, hypertelorism, broad nasal root, micrognathia, clinodactyly, brachydactyly and syndactyly.

ORPHA:37553

  • Synonym(s):
    • Andersen cardiodysrhythmic periodic paralysis
    • Andersen syndrome
    • Andersen-Tawil syndrome
    • LQT7
    • Long QT syndrome type 7
  • Prevalence: Unknown
  • Inheritance: Autosomal dominant 
  • Age of onset: Childhood
  • ICD-10: G72.3
  • OMIM: 170390
  • UMLS: -
  • MeSH: -
  • GARD: 9453
  • MedDRA: -

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