I was told I need to quit a minimum of 2 weeks prior to op, I had my last cigarette 5 days ago and my op is on Friday. I’ve been using an e cig and its worked well so far 🙂 I’d defiantly quit as soon as you can, not only for risk of infection, smoking can starve the heart of oxygen, causing difficulty breathing during and after op, increased risks of blood clots and can slow recovery. I know lots of people who didn’t quit and they’re fine. Try an e cig, at least you’ll be cutting out all the s*** xx