Questions · Perioperative GLP-1 Receptor Agonists
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Recall — derived from a kept point
State the 2025 multi-society recommendation for a patient taking a GLP-1 receptor agonist before an elective procedure: whether the drug is continued or held, what preoperative diet and fasting interval is advised instead, and what should be done if that diet was not completed.
Answer: Continue the GLP-1 receptor agonist perioperatively. Instead of holding it, use a 24-hour clear fluid diet followed by standard 6-hour fasting, with gastric ultrasound if that diet was not completed.
The 2025 recommendation shifts the intervention from the drug to the diet: keep the agonist going, use 24 hours of clear fluids and a standard 6-hour fast, and scan the stomach if that did not happen.
Source claim: The 2025 multi-society recommendation is to continue GLP-1 receptor agonists perioperatively and instead use a 24-hour clear fluid diet followed by standard 6-hour fasting, with gastric ultrasound if that diet was not completed.
2025 ADS/ANZCA/GESA/NACOS Clinical Practice Recommendations on the Peri-Procedural Use of GLP-1/GIP Receptor Agonists, Anaesthesia and intensive care 2025
recall · CA-1 · phrased by llm
A systematic review and meta-analysis of GLP-1 receptor agonist use pooled 185,414 patients for pulmonary aspiration and 165,522 patients for gastric contents. State the finding for each of those two outcomes, and explain how both findings can be true at the same time.
Answer: Pooling 185,414 patients, GLP-1 receptor agonist exposure was not associated with pulmonary aspiration; across 165,522 patients it raised the odds of residual gastric contents roughly six-fold despite appropriate fasting. Both can hold because they are different endpoints: residual gastric contents is a finding in the stomach, whereas aspiration is the clinical event, and only the former was associated with exposure in these pooled data.
Residual gastric contents were about six times likelier despite appropriate fasting, yet aspiration itself was not associated with exposure, so do not treat the two endpoints as interchangeable.
Source claim: Pooling 185,414 patients, GLP-1 receptor agonist exposure was not associated with pulmonary aspiration, but across 165,522 patients it raised the odds of residual gastric contents roughly six-fold despite appropriate fasting.
Association Between Glucagon-Like Peptide-1 Receptor Agonist Use and Peri-Operative Pulmonary Aspiration: A systematic Review and Meta-Analysis, Anaesthesia 2025
recall · CA-2 · phrased by llm
In a retrospective analysis of patients undergoing elective upper endoscopy, how often was increased residual gastric content found in those on semaglutide compared with those not on it, what preoperative feature was itself predictive, and what difference did the length of drug interruption make?
Answer: Before elective endoscopy, semaglutide raised increased residual gastric content from 5.1% to 24.2%, and preoperative digestive symptoms were themselves predictive, but the interruption interval made no difference.
In this retrospective series, how long semaglutide was stopped for did not change what was in the stomach, while asking about digestive symptoms did carry information.
Source claim: Before elective endoscopy, semaglutide raised increased residual gastric content from 5.1% to 24.2%, and preoperative digestive symptoms were themselves predictive — but the interruption interval made no difference.
Relationship Between Perioperative Semaglutide Use and Residual Gastric Content: A Retrospective Analysis of Patients Undergoing Elective Upper Endoscopy, Journal of clinical anesthesia 2023
recall · CA-2 · phrased by llm
The American Gastroenterological Association issued a rapid clinical practice update on patients taking GLP-1 receptor agonists before endoscopy. Identify what type of document this is and what its content is derived from, and state what evidentiary weight that lets you give it when arguing about whether to hold these drugs.
Answer: It is a rapid clinical practice update providing expert advice on managing patients taking GLP-1 receptor agonists before endoscopy, drawn from recent studies and the authors' bariatric and endoscopic experience. That makes it expert advice informed by recent studies and clinical experience, not trial data, so it can frame the discussion but cannot settle it by itself.
Know the genre of what you are quoting: a rapid clinical practice update is expert advice drawn from recent studies and the authors' own bariatric and endoscopic experience.
Source claim: The AGA rapid clinical practice update provides expert advice on managing patients taking GLP-1 receptor agonists before endoscopy, drawn from recent studies and the authors' bariatric and endoscopic experience.
AGA Rapid Clinical Practice Update on the Management of Patients Taking GLP-1 Receptor Agonists Prior to Endoscopy: Communication, Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 2024
recall · CA-3 · phrased by llm
Ongoing treatment attenuates the delay in gastric emptying, so after more than ___ weeks of therapy standard fasting times are likely sufficient for otherwise low-risk patients; caution belongs with recent starters.
Answer: 12
Ongoing treatment attenuates the delay in gastric emptying, so after more than 12 weeks of therapy standard fasting times are likely sufficient for otherwise low-risk patients; caution belongs with recent starters.
Perioperative Management of Long-Acting Glucagon-Like Peptide-1 (GLP-1) Receptor Agonists: Concerns for Delayed Gastric Emptying and Pulmonary Aspiration · PMID 38290907
recall · CA-1 · phrased by derived
After discontinuing GLP-1 receptor agonists, expect a significant weight regain, averaging ___ kg in obese patients (95% CI: 3.52-7.73).
Answer: 5.63
After discontinuing GLP-1 receptor agonists, expect a significant weight regain, averaging 5.63 kg in obese patients (95% CI: 3.52-7.73).
Metabolic Rebound After GLP-1 Receptor Agonist Discontinuation: A Systematic Review and Meta-Analysis · PMID 41399474
recall · CA-1 · phrased by derived
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