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
Ray Liotta win in "Bee Movie"). Liotta starred in the 2006 CBS television series "Smith", which was pulled from the schedule after three episodes, and in 2012, Liotta appeared as himself in a purely vocal role for the "What a Croc!" episode of the Disney Channel comedy series "Phineas & Ferb". Liotta played the father of drug dealer George Jung in the 2001 Johnny Depp film "Blow" and, in the following year, appeared as Detective Lieutenant Henry Oak in the Joe Carnahan-directed film "Narc", a role that led to an Independent Spirit Award nomination and a Phoenix Film Critics Society Awards nomination