A Case Report of Mitral Valve Aneurysm Associated with Infective Endocarditis.

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A 53 year-old male with mitral valve aneurysm was presented. This patient, who had no episodes of rheumatic fever, was admitted with complaints of general fatigue, dyspnea and continuing high fever. Echocardiographic examination showed an abnormal echo behind the anterior leaflet of mitral valve, protruding into the left atrium during systole. Angiogram showed the same abnormal change of mitral valve and mitral regurgitation (MR) and aortic regurgitation (AR). We diagnosed as mitral valve aneurysm with MR and AR due to infective endocarditis. At operation, it was revealed that the aortic valve was destroyed, resulting in severe AR, and the anterior leaflet of mitral valve was a large aneurysm itself. Both valves were replaced with St. Jude Medical valve prosthesis. Postoperative course was good and with no complications. In Japan, 21 cases of mitral valve aneurysm were reported. We discussed the clinical course and the operative procedure for mitral valve aneurysm in this report.
特定非営利活動法人日本心臓血管外科学会の論文