Short-term and long-term results of surgical treatment were analyzed in 108 patients with aortic valve disease, complicated significant calcinosis spreading on anterior cusp of mitral valve. Mean age of the patients - 53,5±10,8 years (from 25 to 88 years). All patients underwent aortic valve replacement and decalcification of anterior cusp of mitral valve. Coronary bypass grafting was additionally carried out in 10 cases (from 1 to 5 shunts, 1,9 - in average). Hospital lethality was absent. Functional improvement of mitral valve was observed basing on postoperative echocardiography and remained in long-term period.