Thoracic Outlet Syndrome

WHAT THE BLEEEEP is this? My sister has suffered from this syndrome since her sophomore year in high school, and she is now just getting diagnosed. Thoracic Outlet Syndrome causes blood circulation to be cut off around the affected area. In my sister's case, it is in her arms and shoulders. If she puts her arms above her head, her arms will start to get less and less blood circulating through them, causing numbness and some pain. There are two ways to possibly cure this problem. One is strict physical therapy that is more of a workout then therapy. The other option is surgery. Both are not 100% effective, but they are the only known ways to solve the problem.