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Copyright 1987, 1988, 1990, 1991, 1996, 2002
Synonyms of Spasmodic Dysphonia
- CSD (Chronic Spasmodic Dysphonia)
- Dysphonia Spastica
- Laryngeal Dystonia
- SD
- Spastic Dysphonia
Disorder Subdivisions
- Abductor Spasmodic Dysphonia
- Adductor Spasmodic Dysphonia
General Discussion
Spasmodic dysphonia is a voice disorder characterized by momentary periods of uncontrolled vocal spasms, tightness in the throat, and/or recurrent hoarseness. At certain times, affected individuals must make a conscious effort to speak. The most frequent sign of this disorder is a sudden, momentary lapse or interruption of the voice. Spasmodic dysphonia is a form of dystonia, a group of neurological movement disorders characterized by involuntary muscle spasms.
There are two types of spasmodic dysphonia: Abductor spasmodic dysphonia and the more common adductor spasmodic dysphonia. The cause of spasmodic dysphonia is not known.
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Organizations related to Spasmodic Dysphonia
- Dystonia Medical Research Foundation
1 East Wacker Drive
Suite 2810
Chicago IL 60601-1905
Phone #: 312-755-0198
800 #: 800-377-3978
e-mail: dystonia@dystonia-foundation.org
Home page: http://www.dystonia-foundation.org
- Dystonia Society
89 Albert Embankment, 1st Floor
Vauxhall
London Intl SE1 7TP
Phone #: 084-5 4-58 6211
800 #: 084-5 4-58 6322
e-mail: angie@dystonia.org.uk
Home page: http://www.dystonia.org.uk
- Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg MD 20898-8126
Phone #: 301-251-4925
800 #: 888-205-2311
e-mail: ordr@od.nih.gov
Home page: http://rarediseases.info.nih.gov/Default.aspx
- NIH/National Institute on Deafness and Other Communication Disorders (Balance)
National Temporal Bone, Hearing
and Balance Pathology Resource Registry
Massachusetts Eye & Ear Infirmary
243 Charles Street
Boston MA 02114-3096
Phone #: --
800 #: 800-822-1327
e-mail: TBRegistry@meei.harvard.edu
Home page: http://www.tbregistry.org
- National Spasmodic Dysphonia Association
300 Park Boulevard
Suite 301
Itasca IL 60143
Phone #: N/A
800 #: 800-795-6732
e-mail: nsda@dysphonia.org
Home page: http://www.dysphonia.org
- Spasmodic Dysphonia Support Group
8 Corona Avenue
Roseville
New South Wales Intl 2069
Phone #: 61 -294- 112 424
800 #: --
e-mail: dennist@agsm.unsw.edu.au
Home page: N/A
- WE MOVE (Worldwide Education and Awareness for Movement Disorders)
204 West 84th Street
New York NY 10024
Phone #: 212-875-8312
800 #: N/A
e-mail: wemove@wemove.org
Home page: http://www.wemove.org
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