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Related Experiment Videos

Chorea: non-genetic causes.

Francisco Cardoso1

  • 1Neurology Service, The Federal University of Minas Gerais, Belo Horizonte MG, Brazil. cardosofe@terra.com.br

Current Opinion in Neurology
|July 13, 2004
PubMed
Summary
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This review explores non-genetic causes of chorea, highlighting stroke as a primary cause of sporadic chorea. Further research is needed to confirm Sydenham's chorea mechanisms in other neuropsychiatric disorders.

Area of Science:

  • Neurology
  • Movement Disorders
  • Neuroimmunology

Background:

  • Chorea, characterized by involuntary, irregular, and purposeless movements, presents a diagnostic challenge, particularly in its sporadic forms.
  • Understanding the diverse etiologies of chorea is crucial for effective patient management and therapeutic strategies.
  • Growing interest exists in the potential role of Sydenham's chorea pathogenesis in other neuropsychiatric conditions.

Purpose of the Study:

  • To conduct a comprehensive literature review on the non-genetic causes of chorea.
  • To delineate the differential diagnosis of sporadic chorea.
  • To explore the potential link between Sydenham's chorea mechanisms and other neuropsychiatric disorders.

Main Methods:

  • Systematic literature review of non-genetic causes of chorea.

Related Experiment Videos

  • Analysis of differential diagnostic considerations for sporadic chorea.
  • Evaluation of current evidence on Sydenham's chorea and its relation to other neuropsychiatric conditions.

    • Main Results:

    • Stroke is identified as the leading cause of sporadic chorea.
    • Sydenham's chorea shares features with tic disorders but differs from Tourette's syndrome.
    • Autoimmune conditions (e.g., lupus, paraneoplastic syndromes), drugs (lamotrigine, methadone, lithium), and infections (notably HIV) are significant causes of chorea.

    Conclusions:

    • Thorough investigation is essential for patients presenting with sporadic chorea due to its multifactorial etiology.
    • The precise role of Sydenham's chorea pathogenic mechanisms in conditions like obsessive-compulsive disorder and Tourette's syndrome requires further confirmation.
    • Infectious agents, particularly HIV, and certain medications are frequently implicated in the development of chorea.