title: Severe hemolytic anemia after attempted repair of paraprosthetic mitral regurgitation.
mesh_terms: D000368:Aged; D000743:Anemia, Hemolytic / Q000209:etiology*; D001705:Bioprosthesis / Q000009:adverse effects; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000601:surgery*