Pulmonary aspiration is uncommon but dangerous. When stomach contents reach the lungs, they can cause choking, breathing difficulties, or aspiration pneumonia, and the most severe cases may be fatal. In routine surgical populations, anesthesiologists generally cite rates below one in a thousand, roughly matching the 0.12% figure this study found among non-users.

When did the events happen?

Most aspiration or regurgitation episodes struck GLP-1 RA patients during emergence from anesthesia — the wake-up phase after the procedure — rather than when anesthetic drugs were first administered. The study did not collect matching timing for non-users, so the team could not directly compare timing between groups.

How did hospitals manage GLP-1 users?

Perioperative care varied considerably across the 119 sites. Some clinicians continued the drugs up to surgery; others paused them days in advance. Airway-management choices also differed. The authors flagged that variability as a finding in itself, because no single standard of care has yet emerged for this fast-growing patient group.

What does the study not yet prove?

The design was observational, so it identified an association rather than a cause. Patient weight, type of surgery, diabetes status, or differences in how anesthesiologists approached the airway could also contribute to the gap. Potter's team argues that further prospective trials would be needed to test specific risk-reduction strategies — for example, extended preoperative fasting, ultrasound exams of the stomach, or modified airway protocols.

"These data warrant further prospective studies to determine interventions that may mitigate risks of pulmonary aspiration and improve patient outcomes," the authors wrote.

What should patients and clinicians do now?

Existing anesthesia-society guidance generally recommends pausing GLP-1 medications before elective procedures, though the exact interval and the role of stomach ultrasound remain debated. The new findings reinforce that caution but offer no single recipe. Patients scheduled for surgery should review their GLP-1 use with the anesthesiology team, since management plans can change depending on the drug, dose, and procedure.

The work appeared alongside the Association of Anaesthetists' annual meeting, held September 16–18 in Liverpool, England. Its DOI is 10.1111/anae.70380.