[Specific features of the structure of the porcine aortic valve as a potential xenograft for the substitution of the human aorta valve].

A comparative examination of the anatomy of human and porcine aortic valves was carried out. The similarity and differences are shown in the anatomical structure and geometrical relationships of certain structures of the allogenic and xenogenic aortic valves which should be taken into account when performing reconstructive-plastic operations on the aortic valve and in implantation of stentless bioprostheses, and when developing their new models.