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Rare disease search prototype built on Orphanet data

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ORPHA:682

Hyperkalemic periodic paralysis

Also called Adynamia episodica hereditaria, Familial hyperPP, Familial hyperkalemic periodic paralysis, Gamstorp disease, Gamstorp episodic adynamy, HYPP, HyperKPP, HyperPP, Hyperkalemic PP, Primary hyperPP, Primary hyperkalemic periodic paralysis

Body system
Neurological diseases
Inheritance pattern
Autosomal dominant
Typical age of onset
Childhood
Estimated prevalence
1-9 / 1 000 000 (Europe)
Rarity class
1-9 / 1 000 000

ORPHA:682 is classified under "Neurological diseases" in the Orphanet nomenclature.

Common signs

  • Reduced tendon reflexes
  • Elevated circulating creatine kinase concentration
  • EMG abnormality
  • Episodic flaccid weakness
  • Periodic hyperkalemic paralysis
  • Cerebral palsy