Artificial heart valve 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. Natural heart valves are evolved to forms that perform the functional requirement of inducing unidirectional blood flow through the valve structure from one chamber of the heart to another. Natural heart valves become dysfunctional for a variety of pathological causes. Some
1969 Copa Argentina Final place in the competition. 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