Page of

Chorea 

Chorea
Chapter:
Chorea
Source:
Video Protocols and Techniques for Movement Disorders
Author(s):

Brandon R. Barton MD, MS

and Deborah A. Hall MD, PhD

DOI:
10.1093/med/9780199948512.003.0015

Chorea is defined as involuntary, irregular, arrhythmic, nonpatterned, purposeless movements that flow randomly from one body part to the other. Patients with chorea commonly demonstrate other features including motor impersistence (inability to sustain voluntary muscle contraction), exaggerated gestures, which are caused by superimposition of chorea onto voluntary movements, and an irregular, dancelike gait. Due to the unpredictable nature of chorea, videotaping should show different areas of the body under various conditions. Abnormalities seen in Huntington disease, such as eye movements and tests of executive function are also included in the chorea protocol.

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