I had the surgery done on my dominant hand. Let me tell you! I had to change a few of my habits and do things differently! I still need it done on my right hand as it gets pretty bad when I'm using the mouse. I then just let it fall to side until the blood flows again or I shake it to get the blood flowing. I've lived with it for so long, it's not a big problem for me anymore.
When I went in for the surgery, they asked how I'd like to be put under. Well, I had heard they shove a tube down your throat if you go totally under. I wasn't having any of that, so they gave me some pills which, after they took effect, I asked for some more! I was put half-way under. You are semi-conscious. I was kinda there and kinda not. I remember feeling them cut the ligament that releases the pressure and I mentioned it to him as he was doing the cut!
When they say that you can't use your hand, they really mean it! The first time I used my hand, the pain was excruciating!!