Fred Hoiberg Fred Hoiberg Talks About Life With His On-X Aortic Valve Managing Blood Thinner Is Not a Big Deal With His On-X Aortic Valve Fred Hoiberg Talks About His On-X Aortic Valve vs Other Mechanical Valves : Subscribe To Our NewsletterJoin our mailing list to receive the latest inspiring patient stories. SUBSCRIBE! You have Successfully Subscribed!