Aim: The authors assess anaemia as a predictor of poor outcome in patients with lesions of the left main coronary artery. 

Materials and methods: The study included 112 patients of both sexes with lesions of the left main coronary artery, in combination with the defeat another one coronary artery, according to coronary angiography, were hospitalized in RSCC in the 2016-16 years. 

Results: The authors found that in most cases, anaemia in patients with coronary heart disease is not iron deficiency anaemia, and therefore iron administration is useless. In addition, anaemia is an independent predictor of adverse outcomes in patients with coronary artery disease with lesions of the left main coronary artery. In the complex groups of patients needed correction and monitoring of haemoglobin levels, in order to prevent a decrease and increase it above the recommended values.

Keywords: coronary heart disease, left main coronary artery, anaemia, predictors of adverse outcomes