We told our 4 yr old about my upcoming surgery last night and he took it very well. He listened to what we said, and then he leaned into me, gave me a hug and said "Daddy, I'm going to miss you while you're in the hospital". That just about made me lose it. And I'm even more determined to get home as soon as I can to see him. 13 days and counting.
When I was told I needed surgery, to be done in 4 weeks, my older daughter was 2 1/2 and my wife was 6 months pregnant with my younger daughter. I decided to tell my 2 1/2 year old a few days later, just prior to the cath, then didn't tell my wife until after the surgery. :wink2:
Seriously though, my 2 1/2 year old is 4 now, and I think kids that age and younger are lucky enough to handle the whole surgical ordeal much better than our spouses. I couldn't agree more with the post that said that our kids view of surgery will be a reflection of our own. I never showed any worry, and neither did my daughter. I know exactly what you mean about almost "losing it", though. For me, the emotional times were more unexpected, such as an unplanned request to read a story about special things a father and daughter do. I always hung in there, though, and didn't show any emotion until I was in another room.
Speaking of emotion, the pre-surgery goodbye is obviously another tough one. I did my best to assure my daughter that she was surrounded by others to help take care of her when I was not there, and that she could think about all of the fun stuff we always did together while I was away. My word choice was careful and purposeful, to assure that her ears were hearing only "while I'm at the hospital", no need to worry, but my words also meant something much deeper, just in case.
I tell you what, though, I walked into the hospital the next morning with a smile on my face, knowing I'd be just fine, as will you. Then, guess what, I was joking with my daughter in person that very night, after it was all over. She had been my designated "keep everyone happy" person during the surgery, even though she wasn't aware of it. I figured if my wife and family were busy enough taking care of her, they wouldn't have as much time to worry about me. She did her job to perfection.
Best wishes and be ready for many amazing post surgery moments with your son.