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Hypokalemic periodic paralysis

Disease definition

Hypokalemic periodic paralysis (hypoPP) is characterised by episodes of muscle paralysis lasting from a few to 24-48 hours and associated with a fall in blood potassium levels.

ORPHA:681

  • Synonym(s):
    • Westphall disease
  • Prevalence: 1-9 / 100 000
  • Inheritance: Autosomal dominant 
  • Age of onset: Childhood
  • ICD-10: G72.3
  • OMIM: 170400  613345
  • UMLS: C0238357  C0238358
  • MeSH: D020514
  • GARD: 6729
  • MedDRA: -

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