Tamponade (/ˌtæm.pəˈneɪd/[1]) is the closure or blockage (as of a wound or body cavity) by or as if by a tampon, especially to stop bleeding.
This can be achieved by applying an absorbent dressing directly into a wound, thereby absorbing excess blood and creating a blockage, or by applying direct pressure with a hand or a tourniquet.
For example: cardiac tamponade is a condition where fluid collects in the pericardial sac increasing pressure within the pericardium which in turn prevents the ventricles from expanding fully significantly reducing the efficiency of the heart.
[4] Pressing bone wax into bleeding bone is considered hemostasis by tamponade, as opposed to methods which physically or biochemically activate the clotting cascade.
Research suggests that patients undergoing surgery with tamponade agents of C3F8 gas and standard silicone oil had the best visual and anatomic outcomes, over other tamponade agents.