Valve repair

Overview: Mitral valve repair is a surgical procedure that repairs a faulty mitral valve. 

Hypertrophic obstructive cardiomyopathy (HOCM) is often associated with abnormalities of the mitral valve. Many people with HOCM have problems with their mitral valves. The valve leaflets may be too long  which contributes to the obstruction. The papillary muscles that open and close the valves may be positioned badly. The chordae tendineae (sometimes called the heart strings) connecting those muscles to the valve may be positioned badly, or be too long or short. For these or other reasons, the leaflets of the mitral valve may not close properly, causing mitral regurgitation and obstruction. The result is that blood leaks back into the left atrium and is partly blocked below the aortic valve. 

Many people have some mitral regurgitation, and they usually tolerate it well. But if it is severe, it can cause symptoms like shortness of breath, fatigue, exercise intolerance, and palpitations. It can also contribute to heart failure. 

Kaple, R. K., Murphy, R. T., DiPaola, L. M., Houghtaling, P. L., Lever, H. M., Lytle, B. W., Blackstone, E. H., & Smedira, N. G. (2008). Mitral Valve Abnormalities in Hypertrophic Cardiomyopathy: Echocardiographic Features and Surgical Outcomes. The Society of Thoracic Surgeons, 1527-1535. doi:10.1016/j.athoracsur.2008.01.061


Teekakirikul, P., & Wong, T. C. (2018, January 10). MR in Patients With Hypertrophic Cardiomyopathy Referred for Septal Reduction Therapy. American College of Cardiology. Retrieved January 29, 2018, from


HCMA 6/2021

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