I was a heavy smoker prior to surgery. Got a last min date and panicked! I cut right down in the days leading up to the op and smoked none from 11am the day before. I have to say, I had chest problems 1 day post op and they were considering keeping me in, but I knew that what I was coughing up was due to only quitting a few days before and so I made the decision to have one that afternoon. Didn't really enjoy it but it helped. Will be smacked by numerous people for telling you this but I would suggest that you quit in plenty of time to avoid any un necessaries! I started quickly getting back to 20 a day and was constantly worried that it may affect my healing. All I can say, is that I must be one of the lucky ones as I had no bothers at all. That is in no way advice to continue though. Do what you can. I do feel I need to quit to continue embracing my new healthy body but at the moment it is my only vice. xxx Good luck whatever you decide to do xxx And sorry if my honesty causes any bothers xxxx