Marijuana use does not affect the outcomes of bariatric surgery

Shockcor, Nicole; Adnan, Sakib; Siegel, Ariel; Wise, Eric S.; Zafar, Syed Nabeel; Kligman, Mark D.

doi:10.1007/s00464-020-07497-5

Cited by 20 publications

(7 citation statements)

References 11 publications

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“…One study of bariatric patients found no difference in complications between cannabis users (n = 73) and non-users (n = 73). 51 Specifically, there was no difference in rates of bleeding or venous thromboembolism (VTE) ( P = 0.154 and 0.316, respectively) in this study with a small sample size. In a study examining outcomes in cannabis versus non-users undergoing lower extremity bypass procedures (n = 50,976), there was an increased incidence of vascular graft complications among cannabis users ( P = 0.03).…”

Section: Discussioncontrasting

confidence: 52%

The Effects of Cannabis: Implications for the Surgical Patient

Copeland-Halperin

Herrera-Gomez

LaPier

et al. 2021

Plastic and Reconstructive Surgery - Global Open

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Background: Cannabis use is increasingly prevalent. Cannabinoid receptors regulate pro-inflammatory cytokines, and compounds in marijuana exert diverse physiologic effects. As more patients use cannabis, clinicians should recognize implications of perioperative cannabis use. Although the role of cannabis use in perioperative pain control has been explored, little is known about its effect on perioperative wound healing or on hematologic, pulmonary, and cardiovascular physiology. Methods: We searched PubMed for English-language articles related to cannabis (ie, marijuana, cannabidiol oil, and tetrahydrocannabinol) and wound healing, cardiovascular, pulmonary, or hematologic outcomes, and surgery. Titles and abstracts were reviewed, and relevant articles were analyzed. Human, animal, and pathology studies were included. Editorials, case reports, and review articles were excluded. Results: In total, 2549 wound healing articles were identified; 5 human studies and 8 animal/pathology studies were included. Results were conflicting. An estimated 2900 articles related to cardiovascular effects were identified, of which 2 human studies were included, which showed tetrahydrocannabinol and marijuana caused tachycardia. A total of 142 studies regarding pulmonary effects were identified. Three human studies were included, which found no difference in respiratory complications. In total, 114 studies regarding hematologic effects were identified. The 3 included human studies found conflicting venous thromboembolism risks. The overall study quality was poor. Information about dose/duration, administration route, and follow-up was reported with variable completeness. Conclusions: Surgeons should consider effects of cannabis in the perioperative setting. Little is known about its perioperative effects on wound healing, or on cardiovascular, pulmonary, and hematologic physiology. Further research should elucidate the effects of administration route, dose, and timing of cannabis use among surgical patients.

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Section: Discussioncontrasting

confidence: 52%

The Effects of Cannabis: Implications for the Surgical Patient

Copeland-Halperin

Herrera-Gomez

LaPier

et al. 2021

Plastic and Reconstructive Surgery - Global Open

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“…As the rate of obesity remains high (Ogden et al 9), and the prevalence of medical marijuana therapy continues to increase (Han et al 6), it is important for providers to better understand the relationship between medical marijuana use and weight change as it would help to inform clinical obesity care (Diggins and Heinberg 4). To date, several studies of weight-loss surgery patients suggest no differences in weight outcomes between marijuana users and non-users postoperatively (Shockcor et al 2021;Bauer et al 1;Jung et al 7); however, these studies did not distinguish between recreational and medicinal products. Given the oversight and regulations associated with medical marijuana dispensing (including patient qualifications, mode of delivery, dosing, and formulation), studies of weight change in recreational marijuana users may not be generalizable to medical marijuana users.…”

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confidence: 99%

Weight stability in adults with obesity initiating medical marijuana treatment for other medical conditions

et al. 2022

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Few studies have evaluated weight change in patients who initiate medical marijuana treatment to address diagnosed health concerns. The objective of this study was to examine whether patients initiating medical marijuana use for a qualifying health condition experienced changes in health and biopsychosocial functioning over time, including weight gain or loss. Specifically, this observational, longitudinal study evaluated changes in the body mass index (BMI) of adults with co-morbid obesity (body mass index [BMI] ≥ 30 kg/m2) and severe obesity (BMI ≥ 40 kg/m2) who were starting medical marijuana treatment for any of the 23 qualifying medical conditions at one of three dispensaries in Pennsylvania. Height and weight measurements were collected at baseline (prior to medical marijuana use) and then 90 days (± 14 days) later. Participants included in analyses (n = 52, M = 55.0 ± 13.6 years, 59.6% female) had a mean baseline BMI of 36.2 ± 5.4 kg/m2 and the majority sought medical marijuana for chronic pain (73.1%). No significant change in BMI was observed from baseline to month three (p > 0.05) in the sample. Additionally, no significant change in BMI was observed in the subset of patients with severe obesity (n = 12, p > 0.05). Our findings are limited by low follow-up rates and convenience sampling methodology but may help to mitigate weight gain concerns in the context of medical marijuana use.

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“…Several studies have been done assessing rates of 30-day complications in bariatric patients using cannabis. One study found no difference in post-operative 30-day outcomes between cannabis users and non-users including readmission, reoperation, bleeding, and infection or length of stay [15]. A study by Janes et al also reported no difference in 30-day outcomes (morbidity, mortality, abscess formation, anastomotic leak, bleeding, respiratory failure, renal failure, wound infection, venous thromboembolism, myocardial infarction) or health care utilization (length of stay, readmission, reoperation, Emergency Department visits) between cannabis users and non-users [18].…”

Section: Effects Of Cannabis On Postoperative Complications and Morta...mentioning

confidence: 99%

Perioperative Cannabis Use in Bariatric Patients: A Review of Outcomes and Proposed Clinical Pathway for Management

Maceyko,

Neff,

Halevy

et al. 2024

OBES SURG

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Legalization of marijuana has led to increased prevalence of medical and recreational cannabis use, underscoring the importance for anesthesiologists, surgeons, and perioperative physicians to understand the effects of this drug in patient care. Bariatric surgical patients represent a unique target population to understand peri-operative cannabis use and its effects as these patients undergo an extensive preoperative psychological and nutritional evaluation. Standardized guidelines on cannabis use in bariatric surgery are lacking and many clinicians remain uncertain on how to handle cannabis use in the peri-operative period. Here, we summarize the data on cannabis use in bariatric patients, specifically exploring anesthetic considerations, weight loss, complications, mortality, and psychiatric outcomes. We propose a clinical pathway to assist clinicians with perioperative decision making in bariatric patients who use marijuana.

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Marijuana use does not affect the outcomes of bariatric surgery

Cited by 20 publications

References 11 publications

The Effects of Cannabis: Implications for the Surgical Patient

The Effects of Cannabis: Implications for the Surgical Patient

Weight stability in adults with obesity initiating medical marijuana treatment for other medical conditions

Perioperative Cannabis Use in Bariatric Patients: A Review of Outcomes and Proposed Clinical Pathway for Management

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