Search for: [Abstract = "Background Aortic stenosis \(AS\) is the most common valvular heart disease in the adult population and its frequency significantly increases with age. For many years, surgical aortic valve replacement \(SAVR\) was the only effective treatment option. Since the first percutaneous valve implantation in 2002, transcatheter aortic valve implantation \(TAVI\) has become a valuable method in the treatment of non\-operative patients as well as an alternative to classic surgical valve replacement. Due to the best clinical results, the most widespread and preferred access to TAVI is via the femoral artery. It can be obtained fully percutaneous \(PA \- percutaneous access\) or by surgical unveiling of the artery and its subsequent puncture \(SA \- surgical access\). In cases where the use of femoral access is not possible, an alternative approach should be considered. Most frequently chosen is through the carotid or subclavian artery or surgical apical access \(TA\). Objectives The objectives of the doctoral dissertation are to determine the relationship between the choice of access and its influence on transcatheter aortic valve implantation, periprocedural complications and the subsequent results of the procedure. Methods The study was retrospective and covered the period from November 2008 to December 2019. Study group consisted of patients qualified by Heart Team, to invasive"]

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