I was wondering what fellowships do you need to complete to become a heart or heart/lung transplant surgeon? Would you need to do a fellowship in Transplants and in CT, and if so does it matter what order you do them in? Also on a slightly different topic..what if you wanted to do padiatric cardiac surgery (i.e. fixing congenital heart defects) what fellowships would you need then? Peds or CT or both and in what order?