Possible complications of TAVI associated with prosthesis dislocation

Valvular heart disease is a serious cardiovascular disease widespread in developed countries. Of valvular system defects, aortic stenosis is the most common pathology. Currently, the "gold standard" in the treatment of this pathology is the surgical aortic valve replacement, which includes the removal of the affected valve and implantation of a biological or mechanical prosthesis in its place. The minimally invasive interventional intervention known as TAVI has proven to be a valid alternative to the “open” method of surgical replacement of the aortic valve in patients with high comorbidity. The process of removal of the artificial valve from the delivery system can be divided into several stages: positioning of the intended implantation site prior to valve opening; the next 3 stage, which is the main stage, partial disclosure and control of the valve position; the third stage is the complete release of the valve from the delivery system. This last stage may be complicated by the violation of bioprosthesis dislocation.