Artificial heart valve was later changed to use silicone-coated material. The first implantation of mechanical heart valve to human was performed by Dr. Hufnagel on 11 September 1952, using the valve that he developed. This event accelerated the development of other artificial heart valves. Artificial heart valve An artificial heart valve is a device implanted in the heart of a patient with valvular heart disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery. Valves are integral to the normal physiological functioning of the human heart.
1969 Copa Argentina Final 1969 Copa Argentina Final The 1969 Copa Argentina Finals were the final two-legged tie that decided the champion of the 1969 Copa Argentina. The finals were contested in two-legged home-and-away format between Boca Juniors and Atlanta. Both matches were played in Estadio Gasómetro in Buenos Aires. Boca Juniors won the first match 3-1, and Atlanta won the second match 1-0, but in the aggregate Boca Juniors won 3-2 to claim their first Copa Argentina Title. The champions was automatically qualified to the Recopa Sudamericana de Clubes, but Boca had already qualified to 1970 Copa Libertadores, so the runners-up, Atlanta, Took