Fear not, it's a piece of cake and a pain free procedure if done laparoscopically(sp), I could've done a gig the next night if push came to shove[ten.sax][Disclaimer: I felt like I could, not that the doc OKed it].
I got to the hospital at 11:00 AM and was out of there at 2:30 PM. There was only occasional slight discomfort for a couple of weeks after, not pain, but slight bloated/pressure feelings from pockets of air/gas before it was absorbed by the blood stream to escape.
The only hassle I had was finding a vein for administering anesthesia. My veins are deep and I had two nurses poking me at the same time trying to find a vein[while the surgeon watched with an amused/smirk]. tsk He was cool though, enjoyed good music, played clarinet at one time.
FWIW, I had it done merely as a precautionary measure; kinda like removing your wisdom teeth because the older you get, the more risky procedures become.