Thoracic Outlet Syndrome

(TOS)

Definition

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 the thoracic outlet syndrome (TOS).
Thoracic Outlet Syndrome
exh39732 96472 1
Copyright © Nucleus Medical Media, Inc.

Causes

Compression, injury, or irritation of nerves and blood vessels can be caused by:
  • Defects in nearby structures
  • Poor posture
  • Trauma
  • Repetitive arm or shoulder movement
  • Tumors

Risk Factors

Factors that may increase your chance of TOS include:
  • Having an abnormal first rib
  • Poor posture
  • Repetitive motion
  • Trauma
  • Obesity

Symptoms

TOS may cause the following:
  • Arm or hand pain
  • Arm or hand weakness
  • Numbness and tingling
  • Cold sensitivity in the hands and fingers
  • Pain or sores of the fingers
  • Poor blood circulation to the arm, hands, and fingers
  • Swelling of the limb
  • Skin of arm turning pale and blue

Diagnosis

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 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 and nerve other conduction tests
Images of internal body structures may be taken with:

leave comments
0
Did you like this? Share with your family and friends.
Related Topics:
Current Research From Top Journals



June 2015

A meta-analysis found that mothers participating in a prenatal exercise group were less likely to have a large newborn, less likely to need a cesarean section, and no more likely to have a low birthweight baby than those who did not exercise. The study supports proper prenatal care advice which advocates for mothers to exercise during pregnancy if allowed by the physician.

dot separator
previous editions


May 2015

Chewing Gum After Surgery May Improve Digestive Tract Recovery
April 2015

Early Peanut Consumption Associated with Lower Risk of Peanut Allergy in High Risk Children
March 2015

dashed separator

Advertisement

Our Free Newsletter
click here to see all of our uplifting newsletters »

 

Advertisement

Advertisement

DiggDeliciousNewsvineRedditStumbleTechnoratiFacebook