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Related Experiment Videos

Paroxysmal kinesigenic choreoathetosis

I S Choi1, J H Kim, W Y Jung

  • 1Department of Neurology, Yonsei University College of Medicine, Seoul, Korea.

Yonsei Medical Journal
|February 1, 1996
PubMed
Summary
This summary is machine-generated.

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Paroxysmal kinesigenic choreoathetosis (PKC) is not rare in Korea, presenting with involuntary movements triggered by sudden actions. This neurological condition shows a benign course and responds well to diphenylhydantoin treatment.

Area of Science:

  • Neurology
  • Movement Disorders

Background:

  • Paroxysmal kinesigenic choreoathetosis (PKC) is a recognized neurological disorder.
  • Historically, few cases of PKC have been reported in Korea.
  • Understanding the clinical characteristics of PKC in the Korean population is important.

Purpose of the Study:

  • To elucidate the clinical features of paroxysmal kinesigenic choreoathetosis (PKC) in Korean patients.
  • To provide a comprehensive analysis of PKC cases within the Korean context.

Main Methods:

  • Clinical analysis of 20 patients diagnosed with PKC between 1986 and 1994.
  • Minimum 1-2 year follow-up period for all patients.
  • Inclusion of demographic, clinical presentation, family history, and treatment response data.

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Main Results:

  • The study identified 20 patients (14 male, 6 female) with PKC, with onset between 8-17 years (mean 13.1).
  • Thirty percent had a family history, suggesting autosomal recessive inheritance.
  • Involuntary movements were often dystonic, precipitated by sudden movements, and associated with dysarthria, sensory aura, and upward gaze; attacks lasted 10-30 seconds.
  • No abnormalities were found in EEG or neuroimaging; all patients responded to diphenylhydantoin.

Conclusions:

  • Paroxysmal kinesigenic choreoathetosis (PKC) appears to be more prevalent in Korea than previously reported.
  • PKC in Korea exhibits a benign clinical course.
  • Diphenylhydantoin is an effective treatment for PKC in this population.