The question frequently posed is whether a patient with multivessel coronary disease should undergo surgery? We analysed two selected groups of 30 patients each. All patients suffered from dilated ischaemic cardiomyopathy following the coronary disease. One group was treated surgically while other group was treated conservatively. All patients were classified by their gender, age, quality of life and mortality. The results showed that patients had better quality of life following the surgery, they were improving their NYHA class by one to three classes, but both groups showed the same mortality. 2 patients advanced NYHA class by three, 24 by two and 3 patients improved by one NYHA class. In the second group, 13 patients improved by two NYHA classes, 15 by one NYHA class and 2 patients died suddenly. Those two patients had been observed previously, 13 and 9 years after the surgery. 2 patients from the second group were followed up: the first one, 17 years after the AMI with aneurismatic dilation of LV, thrombosis, dilated cardiomyopathy and stable angine and the second one who had had prior AMI 3 years ago with angiographically proved subocclusion of three vessels. Dilemma whether to operate such patient or not is still present.

Keywords: coronary artery disease, heart dilation, CABG