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! We hate spam as much as you do and promise to keep your email address safe. You can always unsubscribe.