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GTR Home > Conditions/Phenotypes > Paroxysmal nonkinesigenic dyskinesia

Summary

Excerpted from the GeneReview: Familial Paroxysmal Nonkinesigenic Dyskinesia
Familial paroxysmal nonkinesigenic dyskinesia (PNKD) is characterized by unilateral or bilateral involuntary movements. Attacks are typically precipitated by coffee, tea, or alcohol; they can also be triggered by excitement, stress, or fatigue, or can be spontaneous. Attacks involve dystonic posturing with choreic and ballistic movements, may be accompanied by a preceding aura, occur while the individual is awake, and are not associated with seizures. Attacks last minutes to hours and rarely occur more than once per day. Attack frequency, duration, severity, and combinations of symptoms vary within and among families. Age of onset is typically in childhood or early teens but can be as late as age 50 years.

Available tests

15 tests are in the database for this condition.

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Genes See tests for all associated and related genes

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