The surgery it over, it was completely successful, and he should be conscious and being weaned off the respirator (again) within a couple of days.
His parents are relieved and thrilled, and so is everyone else.
Thank you for supporting us all through this dreadful situation. It's been a long three months. But a year from now with any luck he should be fighting with his big sister, and chasing the doggie around, and generally behaving like a toddler.
I am so happy!