Mitral valve replacement to treat heart valve disease without surgery are divided into three categories: Clinical Practice treatment (this is used in every day clinical practice), Investigational treatment (current clinical studies that are underway), Early Development treatment (early stages of investigation). People having mitral valve surgery receive general anesthesia. Incision can be made somewhat horizontally under the left breast, or vertically through the sternum. After the heart is exposed, canulae are placed to reroute blood to a heart-lung machine for cardiopulmonary bypass. An incision is made in the left atrium to expose the mitral valve. The valve is then replaced with either a
Mitral valve annuloplasty the cardiac cycle. These changes are primarily due to the dynamic motion of the surrounding mitral valve annulus, a collageneous structure which attaches the mitral leaflets and the left atrium to the ostium of the left ventricle and the aortic root. Throughout the cardiac cycle, the annulus undergoes a sphincter motion, narrowing down the orifice area during systole to facilitate coaptation of the two leaflets and widens during diastole to allow for easy diastolic filling of the left ventricle. This motion is further enhanced by a pronounced three-dimensional configuration during systole, the characteristic saddle shape. These changes throughout the cycle