[Acute mitral regurgitation caused by infarction-related papillary muscle rupture with successful surgical treatment: case report]. 
We present a case of severe complication of myocardial infarction -- acute mitral regurgitation caused by papillary muscle rupture.  A 69-year-old man was admitted with chest pain lasting 1 hour and pulmonary oedema.  ECG revealed ST-segment depression in leads II, III, aVF, V2-V6.  Soon after admission the patient experienced respiratory disorders and consequently arrest.  The patient was transferred in shock to the Department of Cardiothoracic Surgery, where he underwent successful artificial mitral valve implantation.  One year later the patient is in good condition (NYHA class I) and the valve is fully functional.