@sirgalahad, I read a little about this surgery, I had not heard of it before. I find my own comfort when I am under the care of a skilled doctor. I finally learned to accept that what is new for me, is what the medical specialists have studied and trained for, for years.
I had to look up cholestoma. It sounds rather complicated. I hope that this is successful, and without any complications. When will you have the surgery? Have you looked in the Hearing Loss Group for anyone who has had this done?
Hugs