Laryngeal Dystonia

National Organization for Rare Disorders, Inc.

Important
It is possible that the main title of the report Laryngeal Dystonia is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.

Synonyms

  • CSD (Chronic Spasmodic Dysphonia)
  • Dysphonia Spastica
  • Spastic Dysphonia
  • SD
  • LD
  • Spasmodic Dysphonia

Disorder Subdivisions

  • None

General Discussion

Summary
Laryngeal dystonia (LD) is a chronic voice disorder characterized by momentary periods of uncontrolled spasms of the muscles of the voice box (larynx). These muscles control speech. The spasms can result in tightness in the throat, recurrent hoarseness, and changes in voice quality and/or difficulty speaking. At certain times, affected individuals must make a conscious effort in order to speak. The most frequent sign of this disorder is a sudden, momentary lapse or interruption of the voice. When affected individuals speak, their voice may sound strained, forced, strangled, breathy, or whispery. In severe cases, an affected individual may be barely able to speak. LD can potentially cause significant quality of life issues for affected individuals impacting both work and social situations. The disorder can cause psychological effects including depression and anxiety. There is no cure for LD, but the disorder can be effectively treated. The cause of LD is not known.

Introduction
Laryngeal dystonia is a form of dystonia, a group of movement disorders that vary in their symptoms, causes, progression, and treatments. This group of conditions is generally characterized by involuntary muscle contractions that force the body in abnormal, sometimes painful, movements and positions (postures). LD is classified as a focal dystonia because it affects a specific part of the body (muscles within the voice box). LD is also known as spasmodic dysphonia.

Resources

National Spasmodic Dysphonia Association
300 Park Boulevard
Suite 415
Itasca, IL 60143
Fax: (630)250-4505
Tel: (800)795-6732
Email: nsda@dysphonia.org
Internet: http://www.dysphonia.org

Dystonia Medical Research Foundation
1 East Wacker Drive, Suite 2810 East Wacker Drive
Suite 2810
Chicago, IL 60601-1905
United States
Tel: (312)755-0198
Fax: (312)803-0138
Tel: (800)377-3978
Email: dystonia@dystonia-foundation.org
Internet: http://www.dystonia-foundation.org

American Speech-Language-Hearing Association
2200 Research Boulevard
Rockville, MD 20850-3289
United States
Tel: (301)296-5700
Fax: (301)296-8580
Tel: (800)638-8255
Email: actioncenter@asha.org
Internet: http://www.asha.org

NIH/National Institute on Deafness and Other Communication Disorders
31 Center Drive, MSC 2320
Communication Avenue
Bethesda, MD 20892-3456
Tel: (301)402-0900
Fax: (301)907-8830
Tel: (800)241-1044
TDD: (800)241-1105
Email: nidcdinfo@nidcd.nih.gov
Internet: http://www.nidcd.nih.gov

Dystonia Society
89 Albert Embankment, 2nd Floor
Vauxhall
London, SE1 7TP
United Kingdom
Tel: 08454586211
Fax: 08454586311
Tel: 08454586322
Email: angie@dystonia.org.uk
Internet: http://www.dystonia.org.uk

Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311
TDD: (888)205-3223
Internet: http://rarediseases.info.nih.gov/GARD/

American Dystonia Society
17 Suffolk Lane
Suite 1
Princeton Junction, NJ 08550
Tel: (310)237-5478
Fax: (609)275-5663
Email: info@dystonia.us
Internet: http://www.dystonia.us

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email orphan@rarediseases.org

Last Updated:  4/26/2008
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