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Smoking in bariatric surgery: a systematic review
Alexandra Chow1,2, Amy Neville3, Nicole Kolozsvari3
1Department of Surgery, University of Ottawa, Ottawa, ON, Canada. aschow1@ualberta.ca.
Surgical Endoscopy
|June 12, 2020
Summary
Smoking before bariatric surgery increases risks of death and complications. Quitting smoking does not significantly impact weight loss, and many patients resume smoking post-surgery, highlighting a need for better cessation support.
Area of Science:
- Bariatric Surgery
- Morbidity and Mortality
- Smoking Cessation
Background:
- High prevalence of smoking (up to 40%) in bariatric surgery patients.
- Limited data on smoking's perioperative impact in bariatric surgery.
- Need to assess smoking's effects on outcomes and cessation efficacy.
Purpose of the Study:
- Evaluate smoking's impact on postoperative morbidity and mortality.
- Examine the relationship between smoking and weight loss.
- Assess smoking cessation efficacy in perioperative bariatric patients.
Main Methods:
- Comprehensive literature search (MEDLINE, EMBASE, Cochrane Library) from 1946-2020.
- Screened 940 titles/abstracts, reviewed 540 full articles.
- Analyzed 48 studies (interviews, longitudinal, retrospective, prospective).
Main Results:
- Smoking within 1 year pre-surgery is an independent risk factor for 30-day mortality and major complications (wound, pulmonary).
- Associated with long-term issues like marginal ulceration and bone fracture.
- Minimal effect on weight loss; high smoking recidivism (up to 17%).
Conclusions:
- Smoking within 1 year of bariatric surgery significantly increases postoperative morbidity.
- Current 6-week cessation guideline may be insufficient.
- Further research needed on perioperative smoking cessation strategies.
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