A case of a 52-year old woman with diabetes mellitus and symptomatic, multivessel coronary disease is presented. The patient underwent coronary angiography. Taking in consideration the intensity of atherosclerotic lesions and vessels diameter, she was initially selected for cardiovascular surgery. However, because of sudden deterioration of clinical condition caused by myocardial infarction the strategy of cardiac revascularisation was changed. The patient underwent multivessel percutaneous coronary intervention with good result in short- and 6-month observation.