I had minimally invasive surgery to replace aortic valve due to stenosis in March, 2007. I was in the hospital 5 days and went back to driving and part-time work in 2-3 weeks. I have approx. a 3" scar over right breast and a couple of small "poke" holes which I assume were for instruments. Truthfully, had very little, if any, pain associated with the surgery. Some fairly bad back aches the first few days due, I believe, to the operating room table which is hard and narrow and you're on it for several hours in the same position. Truthfully, for me the anticipation was far worse than the actual experience. Hope this helps. If I can answer any other questions for you, please feel free to PM me at any time!!
Good luck to you!!!
Jan