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  • Title: [A case of acute postinfarction mitral regurgitation and cardiogenic shock caused by a total rupture of the papillary muscle].
    Author: Suda H, Itoh T, Natsuaki M, Ohteki H, Ohtsubo S, Sakurai J.
    Journal: Nihon Kyobu Geka Gakkai Zasshi; 1993 Mar; 41(3):513-8. PubMed ID: 8478586.
    Abstract:
    We report a case of mitral regurgitation caused by a total rupture of the posterior papillary muscle that had occurred after acute myocardial infarction. A 72-year-old woman was transferred to our hospital for cardiogenic shock. Echocardiogram revealed massive mitral regurgitation and prolapse of posterior mitral leaflet presumably due to a rupture of a papillary muscle. Cardiac catheterization demonstrated a total occlusion in the segment 2 of the right coronary artery. She had developed progressively increasing heart failure even though the patient had received a successful PTCA for a total occlusion of the right coronary artery. She underwent an emergency mitral valve replacement with preservation of the posterior leaflet using a SJM prosthetic valve. Intraoperative findings were confirmative of total rupture of the posterior papillary muscle. A postoperative course was uneventful. This case is the seventh case which has been reported as the successful operation of a total rupture of the papillary muscle in Japan.
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