I spoke to Natalie today on the phone. I can't replicate her medical explanation and I won't try. The long of the short of it is tomorrow at 10 am Evan is going into another surgery. There is a high risk that he will go into total organ failure. The doctors say that the benefits out weigh the risks so they are going ahead with it. This is a huge step and Natalie and Sean are very scared but hopeful. Tomorrow is a big day.