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Genetic and Rare Diseases Information Center (GARD)


Other names people use for this condition
  • DYT8
  • Paroxysmal dystonic choreoathetosis
  • PDC
  • Nonkinesigenic choreoathetosis
  • Mount-Reback syndrome
  • Familial paroxysmal choreoathetosis
  • Choreoathetosis familial paroxysmal
  • FPD1
  • PNKD1
  • Paroxysmal nonkinesigenic dyskinesia



Dystonia 8
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Paroxysmal nonkinesigenic dyskinesia is a disorder of the nervous system that causes periods of involuntary movement. Common symptoms include 1 to 4 hour long episodes of irregular, jerking or shaking movements, prolonged contraction of muscles, chorea, and/or writhing movements of the limb. The movements may have no known trigger or be brought on by alcohol, caffeine, stress, fatigue, menses, or excitement.  The familial form is caused by mutations in the PNKD gene and is inherited in an autosomal dominant pattern.[1]


References
  1. Familial paroxysmal nonkinesigenic dyskinesia. Genetic Home Reference. 2008 Available at: http://ghr.nlm.nih.gov/condition=familialparoxysmalnonkinesigenicdyskinesia. Accessed November 24, 2008.
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