ArticleSurgical endoscopy2023
Post-surgical cannabis use is associated with weight loss among individuals up to 4 years after bariatric surgery.
Article in Surgical endoscopy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
4 citing papers in PubMed, 6 citations in OpenAlex.
- Weight and shape overvaluation and its relation to anxiety, depression, and maladaptive eating symptoms for patients up to 4 years after bariatric surgery.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2025Article
- Perioperative Cannabis Use in Bariatric Patients: A Review of Outcomes and Proposed Clinical Pathway for Management.Obesity surgery · 2024Review
- Post-surgical psychiatric symptoms, maladaptive eating patterns, and lifestyle behaviors associated with weight recurrence after bariatric surgery.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2024Article
- Cannabis use following bariatric surgery is associated with anxiety and maladaptive eating.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2024Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionAlthough cannabis is known to stimulate appetite, it is not clear whether cannabis use may impact weight loss outcomes following bariatric surgery. Although some work has suggested that pre-surgical cannabis use is not associated with post-surgical weight loss, the role of post-surgical cannabis use has not yet been examined. The purpose of this study was to measure pre- and post-surgical cannabis use and determine whether cannabis use was associated with weight loss outcomes following bariatric surgery.
methodsPatients who underwent bariatric surgery over a 4-year period at a single health care system were invited to complete a survey regarding pre- and post-surgical cannabis use and report their current weight. Pre-surgical weight and BMI were extracted from medical records to calculate change in BMI (ΔBMI), percent total weight loss (%TWL), percent excess weight loss (%EWL), whether participants experienced a successful weight loss outcome, and whether participants had weight recurrence.
resultsAmong all participants (N = 759), 10.7% and 14.5% engaged in pre- and post-surgical cannabis use, respectively. Pre-surgical cannabis use was not associated with any weight loss outcomes (p > 0.05). Any post-surgical cannabis use was associated with lower %EWL (p = 0.04) and greater likelihood of weight recurrence (p = 0.04). Weekly cannabis use was associated with lower %EWL (p = 0.003), lower %TWL (p = 0.04), and a lower likelihood of having a successful weight loss outcome (p = 0.02).
conclusionsAlthough pre-surgical cannabis use may not predict weight loss outcomes, post-surgical cannabis was associated with poorer weight loss outcomes. Frequent use (i.e., weekly) may be especially problematic. Providers should consider screening patients for cannabis use and educate them about the potential impact of postoperative cannabis use on weight loss following bariatric surgery.
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