• Br J Anaesth · Oct 2022

    Determinants of tobacco smoking abstinence 1 year after major noncardiac surgery: a secondary analysis of the VISION study.

    • Sandra N Ofori, Maura Marcucci, Lawrence Mbuagbaw, David Conen, Flavia K Borges, Clara K Chow, Daniel I Sessler, ChanMatthew T VMTVChinese University of Hong Kong, Hong Kong Special Administrative Region, China., Graham S Hillis, Shirley Pettit, Diane Heels-Ansdell, Philip J Devereaux, and Vascular Events in Noncardiac Surgery Patients Cohort Evaluation Study Investigators.
    • Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada; Population Health Research Institute, Hamilton, ON, Canada. Electronic address: oforis@mcmaster.ca.
    • Br J Anaesth. 2022 Oct 1; 129 (4): 497-505.

    BackgroundTobacco smoking is a leading preventable cause of death and increases perioperative risk. Determinants of smoking abstinence after noncardiac surgery and the association between smoking and 1-yr vascular outcomes are not fully elucidated.MethodsWe did a prospective cohort study of 40 004 patients, aged ≥45 yr, enrolled between August 2007 and November 2013, and followed for 1 yr after surgery. Patients were categorised as never smokers, ex-smokers (quit >4 weeks preoperatively), and current smokers (smoking ≤4 weeks preoperatively). Primary outcome was abstinence at 1 yr. Secondary outcome was a composite of all-cause death, non-fatal myocardial infarction, and non-fatal stroke at 1 yr.ResultsOf 4658 current smokers, 1838 (39.5%) were abstinent 1 yr after surgery. Median (inter-quartile range) time to resumption was 7 (3-23) days post-surgery. Perioperatively, 7.2% of current smokers obtained smoking cessation pharmacotherapy. Older age (adjusted risk ratio [aRR] 1.21; 95% confidence interval [CI]: 1.12-1.32); having recent coronary artery disease (aRR 1.41; 95% CI: 1.29-1.55); cancer (aRR 1.37; 95% CI: 1.18-1.59); and undergoing major vascular (aRR 1.20; 95% CI: 1.02-1.41), urgent/emergent (aRR 1.14; 95% CI: 1.05-1.23), or thoracic (aRR 1.41; 95% CI: 1.26-1.56) surgeries increased abstinence. One-year abstinence was less likely when patients stopped smoking 0-1 day (aRR 0.53; 95% CI: 0.43-0.66) and 2-14 days (aRR 0.76; 95% CI: 0.71-0.82) before surgery compared with >14 days before surgery. Current smokers (adjusted hazard ratio [aHR] 1.14; 95% CI: 1.01-1.29) and ex-smokers (aHR 1.11; 95% CI: 1.03-1.21) had higher risk of the 1-yr vascular outcome compared with never smokers.ConclusionsLong-term tobacco abstinence is more likely after major surgery in those with serious medical comorbidities. Interventions to prevent smoking resumption after surgery remain a priority. Clinical trial registration NCT00512109.Copyright © 2022 British Journal of Anaesthesia. Published by Elsevier Ltd. All rights reserved.

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