[Late infective mechanical aortic valve prosthesis endocarditis].

We present a case of late infective endocarditis on the mechanical aortic valve prosthesis, complicated by large paraortic abscesus. It was dificult to diagnosed this patient, because of negative blood cultures results and not diagnostic view in transthoracic echocardiogram. Transesophageal echo was performed just before cardiac surgery because of very bad patient's condition.