Aortic stenosis (AS) is the most common valvular disease with an increasing incidence among the population due to population aging. After the onset of symptoms, AS is associated with a high mortality rate if left untreated. For years, surgical replacement of the aortic valve (SAVR) was the only method of treating AS, but in one-third of patients it was contraindicated due to comorbidities and poor general condition. As an alternative method to surgery, a method of minimally invasive approach has been developed. Transcatheter aortic valve implantation (TAVI) is a therapeutic method of treating AS by delivering a bioprosthetic aortic valve by catheter through the femoral artery or some of the alternative approaches without open heart surgery and the use of extracorporeal circulation. It has become an established and effective therapeutic procedure in inoperable and medium and high risk patients with symptomatic AS. Improvements in procedural technique and operator experience contributed to the reduction of procedural complications that were the greatest limitations of the method. Success in the procedure largely depends on a thorough pre-procedural assessment of each individual candidate. The surgical and transcatheter methods have advantages and disadvantages that should be considered when selecting the preferred intervention. The decision on the appropriate intervention, the best implantation approach and the selection of the bioprosthetic aortic valve is ultimately made by the multidisciplinary "heart-team".