I hope all goes well for all of you. When my son went under GA at 7 months old to get tubes placed in his ears after 4 months of ear infections and 5+ rounds of failed antibiotics, it was the most nerve-wracking time of my life to be sitting in the waiting room with my wife trying to remain calm. As you mentioned in your previous post, It's what we do for our family though.
If you pray, or even if you don't, it can never hurt to try. I'm wishing your daughter well and that you and your wife stay strong together through everything that comes next.
I look forward to the time when you are all together happily looking back at this point as a distant memory!