We report a rare case of native valve endocarditis caused by Staphylococcus warneri in an immunocompetent 79-year-old man with known degenerative valvular heart disease but no previous risk factors such as recent invasive treatment or medical implant. The patient presented with heart failure, due to perforation of the mitral valve, and lacked any signs of infection. The diagnosis of endocarditis with S. warneri was established by echocardiography and positive blood cultures.
Keywords: heart failure; ultrasonography; valvar diseases.
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