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Long-Term Relationship Between Tobacco Use and Weight Loss after Sleeve Gastrectomy



Smoking cessation had been typically associated with weight gain. We have reported that there is no relationship between tobacco use and weight loss after bariatric surgery in the short term. The objective of this study was to establish the relationship between weight loss and the smoking habit in patients undergoing bariatric surgery and to analyze weight loss on severe smokers and on those patients who stopped smoking during the long-term postoperative period.


One hundred eighty-four patients included in our previous study were contacted by phone at 7 years after sleeve gastrectomy. They were again divided into three groups: (A) smokers, (B) ex-smokers, and (C) non-smokers. Demographics and weight loss at 6, 12, 24, and 7 years were analyzed. Smokers were subdivided for further analysis into the following: group A1: heavy smokers, group A2: non-heavy smokers, group A3: active smokers after surgery, and group A4: quitters after surgery. Student test was used for statistics.


One hundred two patients were included. The follow-up was 80.74 ± 7.25 month. Group A: 29 patients, group B: 34 patients, and group C: 39 patients. Mean BMI was 34.35 ± 8.44 kg/m2 and the %EWL was 56.95 ± 27. The subgroup analysis showed the following composition: group A1: 6 patients, group A2: 23 patients, group A3: 23 patients, and group A4: 6 patients. Weight loss difference among groups and subgroups was statistically non-significant.


This study reaffirms the hypothesis that weight loss among bariatric patients is independent from smoking habit even at long-term follow-up and regardless from cessation.

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Correspondence to Franco José Signorini.

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Signorini, F.J., Polero, V., Viscido, G. et al. Long-Term Relationship Between Tobacco Use and Weight Loss after Sleeve Gastrectomy. OBES SURG 28, 2644–2649 (2018).

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  • Smoking
  • Tobacco
  • Sleeve gastrectomy
  • Sleeve
  • Bariatric
  • Weight loss
  • Smoking habits
  • Substance abuse