Aim - to define the prognostic value of coronary flow measured by Doppler-sonography during exercise tests in patients with previous myocardial infarction. Material and methods. The study included 297 patients. Outcomes were followed-up within 3 years. The communication with 18 patients was lost before study’s end. The final analysis included 279 (94%) patients. Results. 194 (69, 5%) persons had ischemic signs during stress echocardiography. ST -segment depression over 1 mm during exercise test was detected in two or more leads in 31% including 60 cases of positive (ischemic) result and 26 patients with negative (nonischemic) test. I n the main group mean diastolic flow velocity in median LAD segment prior to exercise was 36±16 cm/s, velocity during peak exercise - 60±28 cm/s. Mean difference of these data was 24±25 cm/s. Calculated coronary flow reserve in this artery was 1.7±0.7. Conclusion. T he value of LAD blood flow reserve as well as difference of velocities during peak and prior to exercise are associated with adverse outcomes within 3-year period after measurements (r≈ -0, 42; p<0.0000001; r≈ -0.40; p<0.0000001 respectively).