Abstract
BackgroundThe harmful effects of smoking on the postsurgical wound healing disturbances have been widely investigated across various surgical procedures. These effects after coronary artery bypass graft (CABG) surgery have been less explored. We aimed to investigate the association of smoking and the wound healing problems in post-CABG patients. Materials and methodsWe compared the incidence of wound complications in 405 smokers and 405 nonsmokers who underwent an elective CABG surgery. The incidence of leg and sternal wound complications was evaluated during the first 7 d as well as at a 6-wk postoperative visit. ResultsOne hundred fifty-six leg wound complications were noted in 132 patients (16.3%). The overall rate of leg wound healing disturbances was significantly higher in smokers than those in nonsmokers (odds ratio, 1.47; 95% confidence interval, 1.109–4.019; P = 0.010). The incidence rates of leg wound edge necrosis and dehiscence were significantly higher in smokers compared with those in nonsmokers (3.7% versus 0.7%, P = 0.004 and 6.6% versus 0.7%, P < 0.0001, respectively). We found no significant differences between the incidence of postoperative leg wound infection, hematoma, wound edema, and seroma in active smokers and those who never smoked. Thirty-seven postsurgical sternal wound complications (4.6%) were developed in 33 patients (4.1%). The overall rate of sternal wound healing disturbances was similar between smokers and nonsmokers. There was a trend between the sternal wound dehiscence and smoking (P = 0.03); however, the other sternal wound complications were not associated with smoking. ConclusionsSmoking may contribute to the disturbances of wound healing, especially wound dehiscence, in post-CABG patients.
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