STENTED BIOPROSTHESIS IN AORTIC POSITION: ANALYSIS OF THE EARLY RESULTS BASED ON A RETROSPECTIVE STUDY

Abstract

Purpose. Retrospective analysis of the immediate results of the treatment of these patients will form an idea of the need for a prospective randomized study. Materials and methods. Are analyzed the results of 411 operations performed in patients with aortic stenosis. The first group – 227 patients with implanted bioprosthesis in the aortic position UniLine, the second group – 184 patients with implanted stented bioprosthesis Biolab. Results. Postoperative mortality in group I was 1.8 % (4 patients), in group II – 2.7 % (5 patients) (p=0.8). To determine the factors that have a connection to the pressure gradient in the aortic prosthesis, regression analysis was performed. In group I, the relationship between the peak pressure gradient and body mass index (p = 0.001). In group II, the relationship peak pressure gradient and stroke volume of the left ventricle, body mass index and diameter of the prosthesis. In group I in the perioperative period required reimplantation valve 1 (0.4 %) patient. Reason dysfunction – iatrogenic damage to the prosthesis. In group II all recorded 3 (1.6 %) early prosthetic dysfunction, including 1 (0.5 %) – iatrogenic and 2 (1 %) – due to the prosthesis itself. Conclusion . A prospective randomized controlled study conducted over a long period of time, a few clinics at the same time, allow more objectively assess the advantages and disadvantages of dentures and to define prospects of development of this direction in Russia.