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JOURNAL ARTICLE
REVIEW
Smoking and Flap Survival.
Plastic Surgery 2018 November
PURPOSE: The aim of this study was to compare the complications of flap surgery in non-smokers and smokers and to determine how the incidence of complications was affected by the abstinence period from smoking before and after flap surgery.
METHODS: In PubMed and Scopus, terms "smoking" and "flap survival" were used, which resulted in 113 papers and 65 papers, respectively. After excluding 6 duplicate titles, 172 titles were reviewed. Among them, 45 abstracts were excluded, 20 full papers were reviewed, and finally 15 papers were analyzed.
RESULTS: Post-operative complications such as flap necrosis ( P < .001), hematoma ( P < .001), and fat necrosis ( P = .003) occurred significantly more frequently in smokers than in non-smokers. The flap loss rate was significantly higher in smokers who were abstinent for 24 hours post-operatively than in non-smokers (n = 1464, odds ratio [OR] = 4.885, 95% confidence interval [CI] = 2.071-11.524, P < .001). The flap loss rate was significantly lower in smokers who were abstinent for 1 week post-operatively than in those who were abstinent for 24 hours post-operatively (n = 131, OR = 0.252, 95% CI = 0.074-0.851, P = .027). No significant difference in flap loss was found between non-smokers and smokers who were abstinent for 1 week preoperatively (n = 1519, OR = 1.229, 95% CI = 0.482-3.134, P = .666) or for 4 weeks preoperatively (n = 1576, OR = 1.902, 95% CI = 0.383-2.119, P = .812).
CONCLUSION: Since smoking decreases the alveolar oxygen pressure and subcutaneous wound tissue oxygen, and nicotine causes vasoconstriction, smokers are more likely to experience flap loss, hematoma, or fat necrosis than non-smokers. Preoperative and post-operative abstinence period of at least 1 week is necessary for smokers who undergo flap operations.
METHODS: In PubMed and Scopus, terms "smoking" and "flap survival" were used, which resulted in 113 papers and 65 papers, respectively. After excluding 6 duplicate titles, 172 titles were reviewed. Among them, 45 abstracts were excluded, 20 full papers were reviewed, and finally 15 papers were analyzed.
RESULTS: Post-operative complications such as flap necrosis ( P < .001), hematoma ( P < .001), and fat necrosis ( P = .003) occurred significantly more frequently in smokers than in non-smokers. The flap loss rate was significantly higher in smokers who were abstinent for 24 hours post-operatively than in non-smokers (n = 1464, odds ratio [OR] = 4.885, 95% confidence interval [CI] = 2.071-11.524, P < .001). The flap loss rate was significantly lower in smokers who were abstinent for 1 week post-operatively than in those who were abstinent for 24 hours post-operatively (n = 131, OR = 0.252, 95% CI = 0.074-0.851, P = .027). No significant difference in flap loss was found between non-smokers and smokers who were abstinent for 1 week preoperatively (n = 1519, OR = 1.229, 95% CI = 0.482-3.134, P = .666) or for 4 weeks preoperatively (n = 1576, OR = 1.902, 95% CI = 0.383-2.119, P = .812).
CONCLUSION: Since smoking decreases the alveolar oxygen pressure and subcutaneous wound tissue oxygen, and nicotine causes vasoconstriction, smokers are more likely to experience flap loss, hematoma, or fat necrosis than non-smokers. Preoperative and post-operative abstinence period of at least 1 week is necessary for smokers who undergo flap operations.
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