In general, mitral valve surgery is recommended in patients have symptoms of heart failure like shortness of breath with exertion or high pressures in the pulmonary arteries along with moderate or severe mitral stenosis, which it sounds like your mother currrently has judging by the few numbers that I can read from the post. Rheumatic mitral stenosis, which it sounds like your mother may have, can also sometimes avoid surgery and be treated with a balloon dilation of the valve though this is only in certain patients and is a decision that needs to be made by her cardiologist. I would recommend that you discuss the need for surgery or balloon dilation of the mitral valve with her cardiologist. I hope this helps. Good luck
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