THE RESULTS OF STEP-BY-STEP MYOCARDIAL REVASCULARIZATION IN PATIENTS WITH ACUTE CORONARY SYNDROME AND MULTIVESSEL CORONARY ARTERY DISEASE: EARLY PERFORMING CORONARY ARTERY BYPASS SURGERY AFTER STENTING USING BARE-METAL STENTS

Objective: To compare the long-term results of coronary artery bypass grafting performed in the early period after stenting for acute coronary syndrome by bare-metal stents with the results of coronary artery bypass grafting in patients with coronary heart disease.Material and Methods. The results of 24-month follow-up of step-by-step treatment of patients with acute coronary syndrome and multivessel lesion who received stenting of clinical-dependent artery with bare-metal stents as the first step and, then, underwent functional myocardial revascularization by aortocoronary bypass surgery within 90 days were analyzed. Results are presented as mean value and standard deviation (M±SD) in case of normal distribution and median with interquartile range in the form of 25 and 75 percentiles in case of non-normal distribution. The type of distribution of quantitative variables was assessed by the Lilliefors-corrected Kolmogorov–Smirnov test. Efficacy and safety assessments were carried out according to the criteria of non-inferiority in comparison with the literature data of myocardial revascularization by stenting. The differences were estimated using a two-way 95% confidence interval of the difference in adverse events based on the selected noninferiority design.Results. Surgical revascularization of the coronary bed in the early period after stenting of the clinically dependent artery using bare-metal stents in patients with acute coronary syndrome and multivessel lesion was equivalent to coronary artery bypass grafting, except for the rate of repeated revascularization.