«Kazan Mitral Workshop» with involvement of leading professors-cardio-surgeons from the USA and Germany will take place at Educational Centre of High Medical Technologies on October, 23rd at 08:30. Demonstrative operations, lectures, round table on subject «Technical competences of mitral surgery», practical workshop on biomaterials «Reconstructive methods in surgery of the mitral valve», session «Second opinion: the open consultation for obtaining of the second judgement from leading experts» will take place within the limits of Workshop. Specialists will analyze the presented cases; will work out treatment tactics according to the best experts of Europe and the USA.