Nystagmus, Benign Paroxysmal Positional

Important

It is possible that the main title of the report Nystagmus, Benign Paroxysmal Positional 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

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• BPPN
• Cupulolithiasis
• Labyrinthine Positional Nystagmus
• Paroxysmal Positional Nystagmus

Disorder Subdivisions

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• None

General Discussion

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Benign Paroxysmal Positional Nystagmus is a disorder of the vestibular system in the middle ear that causes dizziness due to altered function of the semicircular canals, usually involving the posterior canal but sometimes involving the horizontal canal. The dizziness, which is accompanied by abnormal eye movements or nystagmus, occurs suddenly and without warning; thus, it is "paroxysmal". It is also "positional" because the symptoms increase with certain movements of the head or body. It is the position of the head, rather than the movement, that causes the symptoms.

Resources

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Vestibular Disorders Association (VEDA)

P.O. Box 13305

Portland, OR 97213

USA

Tel: 5032297705

Fax: 5032298064

Tel: 8008378428

Email: veda@vestibular.org

Internet: http://www.vestibular.org



EAR (Education and Auditory Research) Foundation

P.O. Box 330867

Nashville, TN 37203

Tel: (615)627-2724

Tel: (800)545-4327

TDD: (615)284-7849

Email: suzanne@earfoundation.org

Internet: http://www.earfoundation.org



National Institute of Neurological Disorders and Stroke (NINDS)

31 Center Drive

8A07

Bethesda, MD 20892-2540

Tel: (301)496-5751

Fax: (301)402-2186

Tel: (800)352-9424

Email: braininfo@ninds.nih.gov

Internet: http://www.ninds.nih.gov/



American Nystagmus Network, Inc.

303-D Beltine Place SW #321

Decatur, AL 35603

USA

Email: webmaster@nystagmus.org

Internet: http://www.nystagmus.org



American Academy of Audiology

11730 Plaza America

#300

Reston, VA 20190

Tel: (703)790-8466

Fax: (703)790-8631

Tel: (800)222-2336

Email: info@audiology.org

Internet: http://www.audiology.org

For a Complete Report

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This is an abstract of a report from the National Organization for Rare Disorders, Inc. ® (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html

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:   5/30/2000

Copyright   1987, 1989, 1998, 2000 National Organization for Rare Disorders, Inc.