[Cardiobacterium hominis pericarditis: an unusual case].

The case of a male patient under hemodialytic therapy, who developed right heart failure is presented. Echocardiography revealed pericardial effusion, constrictive pattem in the right cavities, septation, without valvular damage and preserved systolic and diastolic function. Pericardial drainage and extensive pericardiectomy was performed obtaining cultures of pericardial tissue positive for an HACEK group organism, Cardiobacterium hominis, with repeatedly negative blood cultures. This is a rare clinical presentation of isolated bacterial pericarditis by an atypical microorganism, without associated endocarditis. The infection mechanisms are presented and the scarce available scientific literature is discussed in this study.