Perioperative GLP-1 Receptor Agonist Use and 30-Day Outcomes After Breast Cancer Surgery: A Retrospective Cohort Study.

The analytic cohort comprised 750 patients (209 exposed, 541 unexposed; median age 51 years).

Exposed patients had higher body mass index and diabetes prevalence.

No secondary outcome showed independent association with exposure.

Prolonged length of stay (≥ 3 days) occurred in 26.8% of patients overall and was attributable primarily to drain management requirements, extent of surgery, and metabolic comorbidity rather than GLP-1 RA exposure.