Our DD will need 8ish hour surgery between 2-3 years old. The great news is that our surgeon is really confident about the plan and we hope it will make a big difference for her.
Our anaesthetists have discussed the FDA warning with us (to avoid anaesthesia exposures more than 3 hours under 3 years where at all possible) but like most surgery planned on children this young it is absolutely necessary, though they'll wait as long as they can.
I know that any effect on brain development would be very small if at all, but of course it's on my mind.
If your DC went through this please could you reassure me that they were still themselves after and there were no acute effects? I hope this isn't too insensitive, as I know none of us want our kids to go through this and we often have no choice.
Before anyone says I'm worrying about nothing there's a lot of research on this - the FDA website is helpful - although as yet no definitive evidence of harm in humans. The PANDA study this year was reassuring but only included 1 hour operations.