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Chorea and its disorders.

D S Higgins1

  • 1Parkinson Disease and Movement Disorder Center, Department of Neurology, Albany Medical College, Albany, New York 12208, USA. higgind@mail.amc.edu

Neurologic Clinics
|September 5, 2001
PubMed
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Chorea involves involuntary, dance-like movements that can impact daily activities. This condition, characterized by irregular, rapid motions, may be mistaken for restlessness when mild.

Area of Science:

  • Neurology
  • Movement Disorders

Background:

  • Chorea is defined by irregular, rapid, flowing, and random involuntary movements, sometimes with a writhing quality (choreoathetosis).
  • Mild chorea can be mistaken for simple restlessness.
  • Movements can be asymmetric (hemichorea) or generalized, with proximal, large-amplitude movements termed ballism.

Purpose of the Study:

  • To describe the clinical characteristics and phenomenology of chorea.
  • To differentiate chorea from other movement disorders and restlessness.
  • To highlight associated features like motor impersistence.

Main Methods:

  • Clinical observation and description of involuntary movements.
  • Differentiation based on movement characteristics (speed, flow, stereotype, amplitude).

Related Experiment Videos

  • Assessment of associated features such as motor impersistence.

    • Main Results:

    • Chorea presents as irregular, rapid, flowing, non-stereotyped involuntary movements.
    • Severity ranges from mild, resembling restlessness, to significant interference with daily tasks.
    • Associated features include motor impersistence, such as milkmaid's grasp and inability to sustain eye closure or tongue protrusion.

    Conclusions:

    • Chorea is a distinct movement disorder characterized by specific involuntary movements.
    • Understanding chorea's features is crucial for accurate diagnosis and differentiating it from restlessness.
    • Associated motor impersistence is a key clinical sign in chorea.