National Institutes of Health
- The primary NIH organization for research on Thoracic Outlet Syndrome is the National Institute of Neurological Disorders and Stroke
If you have thoracic outlet syndrome (TOS), the nerves or blood vessels just below your neck are compressed, or squeezed. It can be between the muscles of your neck and shoulder or between the first rib and collarbone. You may feel burning, tingling and numbness along your arm, hand, and fingers. If a nerve is compressed, you may also feel weakness in your hand. If a vein is compressed, your hand might be sensitive to cold, or turn pale or bluish. Your arm might swell and tire easily.
TOS can be a repetitive stress injury. An extra rib, scar tissue, traumatic injury or inherited defects can also cause TOS. Treatment depends on what caused your TOS. Medicines, physical therapy and relaxation might help. Surgery may also be an option. Most people recover.
NIH: National Institute of Neurological Disorders and Stroke
References and abstracts from MEDLINE/PubMed (National Library of Medicine)