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Dystonia and dyskinesia

F Cardoso1, J Jankovic

  • 1Department of Neurology, Federal University of Minas Gerais, Belo Horizonte, Brazil.

The Psychiatric Clinics of North America
|January 27, 1998
PubMed
Summary

Dystonia involves sustained muscle contractions causing involuntary movements and postures. Tardive dyskinesia (TD), a neuroleptic side effect, often includes dystonia, prompting a review of these conditions.

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Area of Science:

  • Neurology
  • Movement Disorders

Background:

  • Dystonia is characterized by sustained muscle contractions leading to abnormal postures and repetitive movements.
  • Tardive dyskinesia (TD) is a neurological disorder resulting from long-term use of dopamine-blocking agents, primarily neuroleptics.
  • Dystonia is a frequent manifestation of tardive dyskinesia.

Purpose of the Study:

  • To provide a comprehensive overview of dystonia and tardive dyskinesia.
  • To detail the classification, phenomenology, epidemiology, genetics, pathophysiology, and neuropsychological aspects of these conditions.
  • To review current and emerging treatment strategies for dystonia and TD.

Main Methods:

  • Literature review and synthesis of existing research on dystonia and TD.
  • Analysis of epidemiological data and genetic factors.
  • Examination of pathophysiological mechanisms and neuropsychological correlates.

Main Results:

  • Dystonia presents as sustained muscle contractions causing characteristic movements and postures.
  • TD affects approximately 30% of patients on neuroleptic treatment, with dystonia being a common subtype.
  • The article covers classification, phenomenology, epidemiology, genetics, pathophysiology, neuropsychological aspects, and treatment.

Conclusions:

  • Dystonia and TD are significant neurological conditions with complex etiologies and presentations.
  • Understanding the multifaceted aspects of these disorders is crucial for effective management.
  • Further research into genetics and pathophysiology may yield improved therapeutic interventions.

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