DAVID MONTGOMERY: Aortic stenosis is a tightening of one of the four major valves of the heart. The aortic valve is particularly important because the aortic valve is the gateway to the rest of ...

Valves are one-way gates in the heart that keep blood flowing between the four chambers of the heart. There are four valves in the heart and each one has strong flaps called “leaflets” that control ...

1), who asked if I would collaborate with him in the development of an artificial heart ... at the margin of the valve orifice and not interfere with valvular function 4. Such devices had a ...

2006;9(10):691-696. The following sections present information about the most commonly implanted (contemporary) mechanical and bioprosthetic heart valves. The intent is to familiarize the reader ...