SynthesisEndocrinology, diabetes & metabolism2026
Comparative Cardiovascular Outcomes of GLP-1 Receptor Agonists Versus Bariatric Surgery: A Systematic Review and Network Meta-Analysis.
Synthesis in Endocrinology, diabetes & metabolism, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
backgroundObesity, a major global health issue, heightens the risk of cardiovascular diseases, including major adverse cardiovascular events (MACE), heart failure (HF) and myocardial infarction (MI). This study provides the first network meta-analysis (NMA) integrating direct and indirect evidence to compare the cardiovascular efficacy of bariatric surgery (BS) and glucagon-like peptide-1 receptor agonists (GLP-1RAs) in individuals with obesity.
methodsA systematic review and NMA were performed in adherence to PRISMA guidelines. PubMed, Embase, Cochrane Library and Google Scholar were searched for studies published from January 2000 to September 2024. Eligible studies reported cardiovascular outcomes, specifically MACEs, HF and MI, in patients with obesity receiving BS, GLP-1RAs or control treatment. Fixed- and random-effects models were used to analyse hazard ratios (HRs) and risk ratios (RRs), with heterogeneity assessed with I
resultsForty-three studies involving 932,380 patients were included BS was associated with significantly greater reductions in MACEs (HR 0.66; 95% CI 0.60-0.74), HF (HR 0.45; 95% CI 0.38-0.53) and MI (HR 0.53; 95% CI 0.45-0.63) compared with controls in random-effects models. GLP-1RAs reduced MACEs (HR 0.85; 95% CI 0.77-0.94) but showed non-significant effects on HF and MI. Despite high heterogeneity (I
conclusionsBS demonstrated more consistent and statistically significant reductions in all cardiovascular outcomes compared to GLP-1RAs, which showed more variable efficacy, particularly for HF and MI. Nevertheless, GLP-1RAs remain effective evidence-based alternatives for cardiovascular risk reduction in patients who are not candidates for surgery, but future studies on newer GLP-1RAs are required. The high heterogeneity across studies highlights the need for cautious interpretation. These results may inform individualized treatment selection in patients with obesity at high cardiovascular risk.
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