Thoracic Outlet Syndrome
The thoracic outlet is the area of the lower neck and upper chest. This area has a variety of nerves, blood vessels, muscles, and bones that run through a fairly small area. When the nerves and blood vessels of this area are compressed, irritated, or injured, they can cause a range of symptoms known as thoracic outlet syndrome (TOS).
|Thoracic Outlet Syndrome|
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Your doctor will ask about your symptoms and medical history. A physical exam will be done.
During an elevated arm stress test, your doctor will ask you to hold your arms and head in positions that may cause the thoracic outlet syndrome (TOS) symptoms to reappear. The results of these tests will help determine whether you have TOS and rule out other possible related conditions.
Other tests may include:
- Blood tests
- Electromyography, other nerve conduction tests
Images of internal body structures may be taken with:
- Chest x-ray
- CT angiography
- MRI scan
Treatment varies depending on your specific symptoms. In most cases, thoracic outlet syndrome is managed with pain medication and physical therapy.
Your doctor may recommend the following:
- Nonsteroidal anti-inflammatory drugs (NSAIDs)
- Muscle relaxers
- Blood thinners
- Anti-platelet medications
A physical therapist will design some exercises for you. The exercises will help to relieve symptoms by relaxing nearby muscles, improving posture, and reducing pressure on nerves and blood vessels.
As part of your treatment, you may need to make lifestyle changes:
- Avoid activity that causes pain
- Practice good posture
- Avoid repetitive motion
- Change your workstation layout
- If you are overweight, talk to your doctor about how you can lose weight
- Exercise regularly to improve strength, flexibility, and range of motion
If other treatments fail, your doctor may recommend surgery. The goal of surgery is to move or remove the source of the compression. In some people, this may involve removing part or all of the first rib to make more room for the nerves and blood vessels.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
Edits to original content made by Denver Health.
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Occupational Safety and Health Administration https://www.osha.gov
The Nicholas Institute of Sports Medicine and Athletic Trauma (NISMAT) http://www.nismat.org
Canadian Centre for Occupational Health and Safety http://www.ccohs.ca
Public Health Agency of Canada http://www.phac-aspc.gc.ca
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