Aim — to evaluate the results of balloon valvuloplasty in high risk adults with severe calcified aortic stenosis. Material and methods. The study group consisted of 7 patients including 5 women and 2 men. Mean age was 64.8±15.3 years (range 26—76), NYHA functional class of heart failure — 3.3±0.4. Average ejection fraction (EF) was 34.2±7.9% (range 22—47%), mean aortic pressure gradient according to echocardiography — 59.4±13.6 mm Hg (45—78 mm Hg); peak gradient  — 115.4±13.9 mm Hg (97—137 mm Hg). Mitral insufficiency 2—3 degrees was detected in 4 (57.1%) patients. Significant left heart enlargement has been diagnosed in all cases. End-diastolic volume was 185.3±38.8 ml (152—264 ml); end-systolic volume  — 134.9±26.5 ml (109—178 ml). High surgical risk was identified in all patients (Euroscore 24.8±1.7% (21.4—27.3), Euroscore 26.3±4.7% (24.1—34.5). Results. Peak and mean aortic gradient decreased to 71.1±21.5 (p=0.001) and 35.9±12.1 mm Hg (p=0.008) respectively for the first week after surgery with regression of mitral regurgitation besides two cases with preserved insufficiency of degree 2 (p=0.05). We revealed significant increase of stroke volume to 70.9±7.2 (p=0.001) and decrease of end-systolic volume to 98.3±29.6 (p=0.04). Any pre- and postoperative changes of aortic regurgitation were not observed (p>0.05). There was increased exercise tolerance: NYHA functional class was 2.3±0.5 (p=0.02). Postoperative mortality was absent. Surgical risk decreased to 16.3±4% Euroscore (p=0.005) and 14.3±2.3% Euroscore (p=0.001). Conclusions. Balloon aortic valvuloplasty may be applied in different age groups of high risk patients with calcified critical aortic stenosis. Balloon valvuloplasty providing good immediate results is the stage prior to aortic valve replacement or endoprosthetic replacement. It significantly reduces the risk of death.