Thoracic Outlet Syndrome (TOS) - American Thoracic Outlet Syndrome Association

American Thoracic Outlet Syndrome Association ATOSA

What is Thoracic Outlet Syndrome?
Thoracic Outlet Syndrome (TOS) (tee-oh-es) is a complex neurovascular condition affecting the upper extremity, often presenting as a collection of signs and symptoms that occur over time or in some cases, appears suddenly without warning. Symptoms of Thoracic Outlet Syndrome can range from mild tingling in the fingers to life and limb threatening deep vein thrombosis (DVT) otherwise known as blood clots.Learn More about Thoracic Outlet Syndrome-TOS

Merger Information

Effective Saturday, May 14, 2011, the American TOS Association will cease some operations temporarily while we make this transfer to the new organization. No new memberships will be authorized on or after Saturday May 14, 2011. Any donations after this date will be held (If you chose this ) until the Internal Revenue Service has made these changes in their records and the transferring to the new organization is complete. Any membership made on May 14, 2011 will not be processed and/or refunded.

Memberships to ATOSA as of Friday May 13, 2011 will be honored and benefits will continue. The ATOSA.ORG website will still remain functional throughout this transition, however, only some pages will remain online.

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