Florida children in grades six through eight are required under current law to take one semester of physical education every year, but the state is now considering a bill to eliminate the requirement for that class.
Superior vena cava syndrome (SVCS) is obstruction of blood flow through the superior vena cava (SVC). It is a medical emergency and most often manifests in patients with a malignant disease process within the thorax. A patient with SVCS requires immediate diagnostic evaluation and therapy.
Blood clot (thrombus) formation that causes superior vena cava syndrome is a complication of pacemaker wires,dialysis, and other intravenous catheters that are threaded into the superior vena cava. Historically, and in other parts of the world, infection (syphilis and tuberculosis) is another cause of superior vena cava syndrome.