<unk>  is a cardiac surgery procedure, carried out to repair one or more faulty<unk>  valves. In some valvular<unk>  diseases repair where possible is preferable to valve replacement. A mechanical<unk>  valve is a replacement valve that is not itself subject to repair.
Heart valve repair
Mitral valve repair
Aortic valve repair
Valve replacement
Mitral valve replacement
Tissue engineering of heart valves
Percutaneous pulmonary valve implantation
Artificial heart valve