title: Noninvasive detection and prevention of deep-vein thrombosis in the geriatric patient.
abstract: Noninvasive methods for the early detection of, and prevention of deep-vein thrombosis can significantly reduce postoperative morbidity and mortality in the elderly due to venous thromboembolism. The technique of venous impedance plethysmography provides a rapid means of assessing the patency of the venous system by detecting changes in venous volume and maximum venous outflow, thus providing for early detection of deep-vein thrombosis. Prevention of deep-vein thrombosis can be accomplished through use of external intermittent pneumatic compression. This technique prevents venous stasis and stimulates the natural fibrinolytic activity of the vein-wall endothelium.
mesh_terms: D000368:Aged; D001783:Blood Flow Velocity; D001810:Blood Volume; D006801:Humans; D007866:Leg / Q000098:blood supply; D008875:Middle Aged; D010992:Plethysmography, Impedance; D011183:Postoperative Complications / Q000517:prevention & control*; D011312:Pressure; D013924:Thrombophlebitis / Q000175:diagnosis* / Q000517:prevention & control; D014680:Veins