Heart Valves Cedars-Sinai heart valve page Valves most commonly replaced are the valves of the left ventricle, i.e the aortic and mitral valves. Long life span. Require anticoagulation to prevent blood clot complications.
Any failure is catastrophic.
These have high profile and cause excessive turbulence and obstruction downstream. Caged discs followed in mid 60s. Flat disc restrained by a cage. Bi-leaflet have become most popular. From human cadavers.