heart valve
81Aortic valve area calculation — is an indirect method of determining the area of the aortic valve. The calculated aortic valve orifice area is currently one of the measures for evaluating the severity of aortic stenosis. A valve area of less than 0.8 cm² is considered to be… …
82prosthetic valve endocarditis — n endocarditis caused by or involving a surgically implanted prosthetic heart valve abbr. PVE * * * infective endocarditis as a complication of implantation of a prosthetic heart valve; the vegetations usually occur along the line of suture …
83Reed valve — Reed valves restrict flow of gases to a single direction and consist of thin flexible metal or fiberglass strips fixed on one end that open and close upon changing pressures across opposite sides of the valve. They operate in a similar manner to… …
84Valvular heart disease and pregnancy — The evaluation of individuals with valvular heart disease who are or wish to become pregnant is a difficult issue. Issues that have to be address are the risks during pregnancy to the mother and the developing fetus. In individuals who require an …
85open-heart surgery — noun heart surgery in which the rib cage is spread open, the heart is stopped and blood is detoured through a heart lung machine while a heart valve or coronary artery is surgically repaired • Hypernyms: ↑heart surgery • Hyponyms: ↑coronary… …
86artificial cardiac valve — artificial heart valve prosthetic heart v …
87cardiac valve — n HEART VALVE …
88bileaflet valve — a type of prosthetic heart valve consisting of a sewing ring surrounding a circular valve seat, to which are attached two semicircular occluding disks that swing open and closed to regulate blood flow …
89bioprosthetic valve — a prosthetic heart valve composed of biological tissue, sterilized and mounted on a plastic or metallic supporting structure; it is inaudible and does not require anticoagulation; a common type is the porcine valve. Called also tissue v …
90Ionescu-Shiley valve — a type of prosthetic heart valve consisting of glutaraldehyde fixed bovine pericardium constructed as a three cusp valve mounted on a Dacron covered titanium frame …
