Well, how do you get past the what-ifs? What a great question.
What does your gut say?
I know what I would do, but I don't get my opinion counted, do I? I'm not going to sit in the waiting room with you, or go to recovery, or have to take her back home.
I will say this: In this case, the only wrong decision is NOT making a decision. Either choice here has the chance to work. There really is no wrong decision, so don't beat yourself up with that! You are being proactive as parents and getting the treatment that is needed (and I add, with one of the best physicians in the world to do it), so rather than think of the what-ifs, pat yourselves on the back. You deserve.