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.
Ray Liotta starring opposite Jennifer Lopez in "Shades of Blue". He doesn’t smoke anymore Liotta married actress Michelle Grace in February 1997 after they met at her former husband Mark Grace's professional baseball game. Together they co-starred in "The Rat Pack", in which Liotta played Frank Sinatra and Grace played Judith Campbell Exner. They have a daughter, Karsen Liotta, born in 1998. The couple divorced in 2004. From his experience shooting the Western "Texas Rising," Liotta says he has continued horseback riding. He said, "I was obsessed with riding horses [on the show]. I love it now. I've never had a hobby.