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Transcutaneous aortic valve implantation has been established as an effective method for the treatment of highgrade aortic stenosis in non-operative, high-risk for conventional surgery patients. According to the developed implantation technologies, the prostheses are divided into balloon-expandable valve prostheses (balloon-expandable valves, BEV) and self-expanding valve prostheses (self-expanding prostheses SEV). The two types of devices have different models for implantation, stratum architecture, cusps characteristics, leading to different hemodynamics, frequency of use and performance of normal prosthesis function. The research aims to monitor the short-term results, up to 1 month after discharge, in terms of mortality, the manifestation of heart failure, (para) prosthetic regurgitation, implantation of a pacemaker, and vascular complications. Materials and methods: the article presents a retrospective follow-up of a total of 230 high-risk for conventional cardiac surgery patients with high-grade aortic stenosis treated in a cardiology clinic at UMHAT St. Ekaterina Sofia until 2020, divided into two groups depending on the implanted type of prosthesis. Conclusions: The results obtained based on our experience prove the safety of new prostheses. When choosing between BEV and SEV, the best clinical outcome requires a good knowledge of the strengths and weaknesses of using medical devices with a personalized approach consistent with the clinical and anatomical characteristics of the patient.

Balloon expandable vs. self-expandable transcatheter aortic valve prosthesis short-term results of retrospective study