My experience has been terrible. One surgery, one ferret at the bridge. :-( My vet told me that he'd done 8 surgery's and all 8 had lived. My baby was the 9th. She came through the surgery fine, but got cold afterward and I just couldn't get her warm enough again. I don't know how old she was, because she was a rescue. The vet said 3-4 years and the local shelter (who saw her after she died) said closer to seven. Shelley [Posted in FML issue 4394]