Smoking can definitely affect the graft. I really believe that quitting smoking, along with losing weight, are among the most difficult lifestyle changes we can ask people to make. But, if you quit smoking, everything will be better. That's probably an exaggeration, but not much of one-you will live longer, you will feel better, you will have more energy, you will sleep better. Your skin will age less. You will look better. You will save a lot of money. Sex is even better (ok, I made that one up, but you get the idea, everything is better).Given how hard it is to quit, its worth lining up every resource at your disposal. Talk to your PCP, there are medications that can help. There are smoking cessation groups. Talk to your friends and family, get them on board with helping you out. See if your work has things that can help. Then do it all. You might fail. If you do, try again. Its that worth it.