| Summary: | Cardiobacterium hominis is a member of the HACEK group of bacteria, responsible for infective endocarditis, mainly in patients with damaged or prosthetic valves. The low virulence of this organism can explain the insidious presentation and subacute or chronic progression of C. hominis infective endocarditis. Here, a 41-year-old man with a past history of surgery for a Waldhausen type aortic coarctation was hospitalised with dyspnea and chest pains revealing an acute pulmonary oedema, without fever. Transesophageal echocardiography indicated a 20 mm vegetation on biscuspid aortic valve. Six sets of blood culture were positive with Cardiobacterium hominis. In case of lack of fever, the diagnosis of infectious endocarditis is difficult because other symptoms are non-specific and biological markers of inflammatory syndrome are quiet or non-existent. This is the first case of C. hominis infectious endocarditis with a clinical presentation of acute pulmonary oedema in the literature. We report here an apyretic pulmonary oedema revealing C. hominis endocarditis and a review of the literature on apyretic infective endocarditis due to C. hominis.
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