[An unusual cause of myocardial infarct. Bacterial mitral valve endocarditis, valve ring and myocardial abscess with direct coronary lesion].

We report on a 45-year-old man with bacterial mitral valve endocarditis and valve-ring abscess following a staphylococcus aureus sepsis with septic shock and respiratory insufficiency. A thrombosis of the marginal branch of the left circumflex coronary artery with a myocardial infarction occurred as a consequence of the unusual location of the abscess which spread to the left ventricular lateral wall with an encasement of this blood vessel, and with destruction of the arterial wall. The patient died of biventricular heart failure because of septic shock and myocardial infarction. We discuss entrance spots of infection, predisposing diseases, and complications of valve-ring and myocardial abscesses.