<unk>  is a procedure whereby the diseased mitral valve of a patient's heart is replaced by either a mechanical or tissue (bioprosthetic) valve. The mitral valve may need to be replaced because: * The valve is leaky (mitral valve regurgitation) * The valve is narrowed and doesn't open properly (mitral valve stenosis) Causes of mitral valve disease include infection, calcification and inherited collagen disease. Current<unk>  approaches include open heart surgery and minimally invasive cardiac surgery (MICS).
Mitral valve replacement
Mitral valve repair
Mitral valve annuloplasty
Aortic valve repair
Heart valve repair
Aortic valvuloplasty
Aortic valve replacement
Percutaneous aortic valve replacement