Valve replacement
Encyclopedia
Valve replacement surgery is the replacement of one or more of the heart valve
s with either an artificial heart valve
or a bioprosthesis (homograft from human tissue or xenograft e.g. from pig). It is an alternative to valve repair.
There are four procedures:
Heart valve
A heart valve normally allows blood flow in only one direction through the heart. The four valves commonly represented in a mammalian heart determine the pathway of blood flow through the heart...
s with either an artificial heart valve
Artificial heart valve
An artificial heart valve is a device implanted in the heart of a patient with heart valvular disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery.Valves are integral to the normal...
or a bioprosthesis (homograft from human tissue or xenograft e.g. from pig). It is an alternative to valve repair.
There are four procedures:
- Aortic valve replacementAortic valve replacementAortic valve replacement is a cardiac surgery procedure in which a patient's failing aortic valve is replaced with an alternate healthy valve. The aortic valve can be affected by a range of diseases; the valve can either become leaky or partially blocked...
- Mitral valve replacementMitral valve replacementMitral valve replacement is a cardiac surgery procedure in which a patient’s mitral valve is replaced by a different valve. Mitral valve replacement is typically performed robotically or manually, when the valve becomes too tight for blood to flow into the left ventricle, or too loose in which...
- Tricuspid valve replacement
- Pulmonary valve replacement