JEWJITSU PEPTIDES Research Roundup: Perioperative GLP‑1 RAs, Infant RSV Antibodies, and a Prefrontal Peptidergic Itch Circuit

The observational analysis used electronic health record data from the TriNetX Research Network (June 1, 2013–June 1, 2023) to study adult surgical patients with type 2 diabetes who received anesthesia. Investigators performed 1:1 propensity‑score matching by surgery type, patient characteristics, diabetic biomarkers, and postoperative risk factors, and compared preoperative glucagon‑like peptide‑1 receptor agonist (GLP‑1 RA) use separately with metformin, SGLT2 inhibitors, and DPP4 inhibitors, excluding concomitant use of the comparator in each comparison. Outcomes examined included 14‑day postoperative mortality, aspiration pneumonitis, bacterial pneumonia, emergency intubation, acute kidney injury, stroke, acute myocardial infarction, and a composite major adverse cardiovascular events (MACE) measure.

Reported associations in the matched comparisons included lower 14‑day postoperative mortality for GLP‑1 RA users versus metformin users (0.98% vs. 2.20%; RR 0.44, 95% CI 0.31–0.64) and versus DPP4 inhibitor users (1.84% vs. 2.89%; RR 0.63, 95% CI 0.45–0.89), plus a lower rate of bacterial pneumonia versus DPP4 inhibitors (0.85% vs. 1.80%; RR 0.47, 95% CI 0.29–0.76). Compared with SGLT2 inhibitors the GLP‑1 RA group showed a numerical difference in MACE (3.86% vs. 5.03%; RR 0.77, 95% CI 0.60–0.98) reported by the authors. The analysis did not find an increased aspiration risk for GLP‑1 RAs compared to any drug class in the study.

The authors note important limitations consistent with the study design: this was an observational database analysis performed before the 2023 ASA guidance and cannot establish causality. Propensity matching addressed measured confounders but residual confounding and selection biases remain possible. The report itself calls for prospective studies to confirm perioperative effects and to inform evidence‑based management strategies rather than to change practice solely on these observational findings.