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Mitral valve agenesis is very rare, defined as an absence or minimal presence of both mitral valve leaflets (complete agenesis) or one of the leaflets (partial agenesis). [16] Surgery can be performed to replace or repair a damaged valve. A less invasive method is that of mitral valvuloplasty which uses a balloon catheter to open up a stenotic ...
The mitral valve is also called the bicuspid valve because it contains two leaflets or cusps. The mitral valve gets its name from the resemblance to a bishop 's mitre (a type of hat). It is on the left side of the heart and allows the blood to flow from the left atrium into the left ventricle .
The mitral valve apparatus comprises two valve leaflets, the mitral annulus, which forms a ring around the valve leaflets, and the papillary muscles, which tether the valve leaflets to the left ventricle and prevent them from prolapsing into the left atrium.
The valve leaflets are separated by two commissures, and each leaflet of the valve (anterior leaflet, the large one, and posterior leaflet, the small one) has three sections (p1, p2, p3). Histologically, each leaflet is composed of the solid fibrosa, the spongiosa at the atrial surface and another fibroelastic layer covering the leaflets. [ 2 ]
The mitral valve has two leaflets—the anterior and posterior leaflet, and together they separate the left atrium from the left ventricle. During systole, the valve closes, which means blood has just one option—to be ejected out the aortic valve and into circulation.
The most common problems with artificial heart valves are various forms of degeneration, including gross billowing of leaflets, ischemic mitral valve pathology, and minor chordal lengthening. [24] The repairing process of the artificial heart valve regurgitation and stenosis usually requires an open-heart surgery, and a repair or partial ...
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