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
Shawn Liotta Shawn Liotta Shawn Liotta (born July 11, 1980) is an indoor football head coach who most recently coached the Erie Explosion. Over the past 8 seasons as a Head Coach at the professional indoor level, Liotta has established himself as a consistent winner and producer high scoring offensive units as evidenced by his team establishing 26 league and national records. Following the conclusion of the 2014 season, Liotta holds a 76% win percentage (58-19) during his tenure in Erie and has led his teams to 7 playoff berths in 8 seasons. Liotta holds a (35-5) record at the Erie Insurance