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Spasmodic dysphoniaDefinition: Spasmodic dysphonia involves difficulty speaking because of repetitive or continuous contraction (dystonia) of the muscles that control the vocal cords. The excessive activity of the vocal cord muscles drives the vocal cords either too close or too far apart, causing a hoarse sounding voice (known as adductor dysphonia) or a whispery, high-pitched voice (abductor dysphonia).
Alternative Names: Dysphonia - spasmodic
Causes, incidence, and risk factors:
Expectations (prognosis):
Calling your health care provider:
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| Review Date: 5/16/2006
Reviewed By: Daniel Kantor, M.D., Director of the Comprehensive MS Center, Neuroscience Institute, University of Florida Health Science Center, Jacksonville, FL. Review provided by VeriMed Healthcare Network.
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