Ovie asked for advice on quitting. One thing I can tell you with absolute certainty Ovie, is that quitting smoking is not hard. Not starting again is the hard part. People will tell you all kinds of garbage about how it's harding to kick than a heroin habit. That's complete bunk. You just don't smoke. Don't. When you want to, think about why you aren't. In 3-5 days, what physical addiction there is to nicotine will be gone.
The harder bit is not picking it up again. You're not going to do that before surgery because you know how much you will benefit from steering clear. After surgery, the very last thing you'll feel like is a smoke. Later though, when you are feeling better, maybe the first time you go out with your friends for a drink (coumadin doesn't mean you can't go out for a drink. You just need to be sensible about it. Not to mention that I quit drinking 7 years ago and still go out for 'drinks' all the time. Needless to say I'm a popular guy on drinks night since I can drive.) When that day comes, and you're thinking 'I could have just one or two', DON'T, for two reasons. First, if you have a couple of beers and a couple of smokes, not having smoked in months, you'll likely be tossing your cookies by morning. I'm not sure why, but it is a brutal combination. Second, as soon as you've had a couple, it'll be all right to do, just when you're drinking. Next thing you know you'll be drinking just so you can smoke, and before you know it you'll say 'aw hell, I might as well just admit that I'm a smoker and buy a pack'. So DON'T.
It's more than 2.5 years since I last smoked and I still miss it occasionally but I'm now in the best condition of my adult life and I wouldn't trade that for all of the cigarettes in the world.