Reflex Sympathetic Dystrophy Syndrome
National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Reflex Sympathetic Dystrophy Syndrome 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.
- Causalgia Syndrome (Major)
- Reflex Neurovascular Dystrophy
- Sudeck's Atrophy
- Complex Regional Pain Syndrome
Reflex sympathetic dystrophy syndrome (RSDS), also known as complex regional pain syndrome, is a rare disorder of the sympathetic nervous system that is characterized by chronic, severe pain. The sympathetic nervous system is that part of the autonomic nervous system that regulates involuntary functions of the body such as increasing heart rate, constricting blood vessels, and increasing blood pressure. Excessive or abnormal responses of portions of the sympathetic nervous system are thought to be responsible for the pain associated with reflex sympathetic dystrophy syndrome.
The symptoms of reflex sympathetic dystrophy syndrome typically begin with burning pain, especially in an arm, finger(s), palm of the hand(s), and/or shoulder(s). In some individuals, RSDS may occur in one or both legs or it may be localized to one knee or hip. Frequently, RSDS may be misdiagnosed as a painful nerve injury. The skin over the affected area(s) may become swollen (edema) and inflamed. Affected skin may be extremely sensitive to touch and to hot or cold temperatures (cutaneous hypersensitivity). The affected limb(s) may perspire excessively and be warm to the touch (vasomotor instability). The exact cause of RSDS is not fully understood, although it may be associated with injury to the nerves, trauma, surgery, atherosclerotic cardiovascular disease, infection, or radiation therapy.
Reflex Sympathetic Dystrophy Syndrome Association of America
PO Box 502
Milford, CT 06460
American Chronic Pain Association
P.O. Box 850
Rocklin, CA 95677
1330 West Peachtree Street, Suite 100
Atlanta, GA 30309
NIH/National Institute of Neurological Disorders and Stroke
P.O. Box 5801
Bethesda, MD 20824
American Pain Society
4700 West Lake Avenue
Glenview, IL 60025
c/o Dannemiller, Inc.
5711 Northwest Parkway
San Antonio, TX 78246
P.O. Box 875
Harrison, ME 04040-0875
International Association for the Study of Pain
1510 H Street NW
Washington, DC 20005-1020
Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
P.A.R.C. Promoting Awareness of RSD/CRPS in Canada
PO Box 21026
Ontario, L2M 7X2
Irish Chronic Pain Association
Coleraine House, Coleraine St.
6001 Park of Commerce Blvd. Suite 300
Boca Raton, FL 33487
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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.
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Last Updated: 8/17/2007
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