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Paroxysmal Nonkinesigenic Dyskinesia



Paroxysmal Nonkinesigenic Dyskinesia (PKND) is an episodic movement disorder first described by Mount and Reback in 1940 under the name "Familial paroxysmal choreoathetosis" [1].

Symptoms

The condition manifests itself as attacks lasting from a few minutes to several hours. Sufferers can have multiple attacks on a daily basis or may have periods of weeks or months between attacks. Symptoms experienced during attacks can vary and include dystonic, choreic, athetoid, ballistic, or a combination. During attacks the sufferer remains conscious.

Alternate names

The condition can and has been referred to by a number of different names since it was first described including the following:-

  • Paroxysmal nonkinesigenic dyskinesia
  • PNKD
  • Paroxysmal dystonic choreoathetosis
  • PDC
  • Nonkinesigenic choreoathetosis
  • Mount-Reback syndrome
  • Familial paroxysmal choreoathetosis
  • Choreoathetosis familial paroxysmal
  • FPD1
  • DYT8
  • Dystonia 8

References

  1. ^ Mount, L. A.; Reback, S. : Familial paroxysmal choreoathetosis: preliminary report on a hitherto undescribed clinical syndrome. Arch. Neurol. Psychiat. 44: 841-847, 1940.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Paroxysmal_Nonkinesigenic_Dyskinesia". A list of authors is available in Wikipedia.
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