Smoking cessation two days prior to surgery is most likely to result in

If smoking cessation occurs at least four weeks prior to surgery, most studies have shown improvement in wound healing and, in particular, a decrease in surgical site infections. The maximal improvements to wound healing and pulmonary status are realized after several months of smoking cessation. Smoking cessation a few days before surgery has not been shown to improve wound healing.

Although early reports found a non-significant increase in the perioperative risk of pulmonary complications in patients who quit smoking immediately prior to surgery, subsequent reviews have found no increase in adverse events in smokers who quit within eight weeks prior to surgery.

Smoking cessation prior to surgery decreases carbon monoxide levels in as little as 12 hours. Carboxyhemoglobin impairs oxygen-carrying capacity and may increase the risk of myocardial ischemia. The decrease in carboxyhemoglobin concentration may be a...

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