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Infective endocarditis from group C streptococci causing stenosis of both the aortic and mitral valves.

Infective endocarditis (IE) carries a high mortality despite modern antimicrobial therapy. Valvular replacement in the acute phase of IE was first described in 19651 and plays an important role in treatment. Lancefield group C streptococci very rarely cause endocarditis, but when this occurs, the course tends to be acute with gross tissue destruction leading to valvular incompetence.2 It is extremely rare for the vegetations in IE to cause valvular stenosis.3' We report a case of acute infective endocarditis caused by Lancefield group C haemolytic streptococci in which the vegetations produced both aortic and mitral valve stenosis.