Hi Stephen: My name is Jayne and I also had Hodgkin's Disease back in 1977. In 1995 I had my aorta valve replaced with a homograph which is a human donor valve. Toby Cosgrove was my surgeon at the Cleveland Clinic. I have contracted breast cancer, skin cancer, thyroid cancer, parotid gland tumor, all as a result of the radiation I received in 1977. I am now about to embark on my second valve surgery. June 7th of 2010 I will have all my valves replaced as an after effect of the radiation. Bruce Lylte is my surgeon and I am confident things will go well. It is just difficult to face yet another open heart surgery. I have tons of practical knowledge when it comes to this. If I can help you anyone else please contact me at email@example.com. Thanks for listening.