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NINDS Opsoclonus Myoclonus Information Page

Synonym(s):   Kinsbourne syndrome, Myoclonic Encephalopathy of Infants, Dancing Eyes-Dancing Feet Syndrome

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What is Opsoclonus Myoclonus?

Opsoclonus myoclonus is a rare neurological disorder characterized by an unsteady, trembling gait, myoclonus (brief, shock-like muscle spasms), and opsoclonus (irregular, rapid eye movements). Other symptoms may include difficulty speaking, poorly articulated speech, or an inability to speak. A decrease in muscle tone, lethargy, irritability, and malaise (a vague feeling of bodily discomfort) may also be present. Opsoclonus myoclonus may occur in association with tumors or viral infections. It is often seen in children with tumors.

Is there any treatment?

Treatment for opsoclonus myoclonus may include corticosteroids or ACTH (adrenocorticotropic hormone). In cases where there is a tumor present, treatment such as chemotherapy, surgery, or radiation may be required.

What is the prognosis?

The prognosis for opsoclonus myoclonus varies depending on the symptoms and the presence and treatment of tumors. With treatment of the underlying cause of the disorder, there may be an improvement of symptoms. The symptoms sometimes recur without warning. Generally the disorder is not fatal.

What research is being done?

The NINDS supports and conducts research on movement disorders such as opsoclonus myoclonus. These studies are aimed at increasing knowledge about these disorders and finding ways to prevent, treat, and cure them.

NIH Patient Recruitment for Opsoclonus Myoclonus Clinical Trials

Organizations

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Opsoclonus Myoclonus Support Network, Inc.
2116 Casa Linda Dr.
West Covina, CA   91791
Tel: 626-315-8125

National Organization for Rare Disorders (NORD)
55 Kenosia Avenue
Danbury, CT   06810
orphan@rarediseases.org
http://www.rarediseases.org
Tel: 203-744-0100 Voice Mail 800-999-NORD (6673)
Fax: 203-798-2291



Prepared by:
Office of Communications and Public Liaison
National Institute of Neurological Disorders and Stroke
National Institutes of Health
Bethesda, MD 20892



NINDS health-related material is provided for information purposes only and does not necessarily represent endorsement by or an official position of the National Institute of Neurological Disorders and Stroke or any other Federal agency. Advice on the treatment or care of an individual patient should be obtained through consultation with a physician who has examined that patient or is familiar with that patient's medical history.

All NINDS-prepared information is in the public domain and may be freely copied. Credit to the NINDS or the NIH is appreciated.

Last updated February 14, 2007