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
Nick Liotta player on the Villanova team. Nick Liotta Domenic A. "Nick" Liotta (January 28, 1928 – November 28, 1951) was an American football player. A native of Everett, Massachusetts, he attended Villanova University where he played college football as a guard and linebacker. He developed a reputation as a 60-minute player and served as co-captain of Villanova's 1951 football team. He was selected by the Football Writers Association of America as a first-team guard and by the "Chicago Tribune" (based on votes of fellow players) as a first-team linebacker on their respective 1951 College Football All-America Teams. Prior to the end