The Impact of Sodium-Glucose Cotransporter-2 Inhibitors on Atrial Fibrillation Burden in Diabetic Patients.

Atrial Fibrillation (AF) and Type 2 Diabetes Mellitus (T2DM) are comorbid conditions associated with increased adverse outcomes. Recent evidence suggests that antidiabetic therapies such as sodium-glucose co-transporter-2 inhibitors (SGLT2i) and glucagon-like peptide-1 agonists (GLP1a) may influence the risk of AF and stroke differently. This study aims to compare the risk of new-onset AF and stroke in T2DM patients treated with SGLT2i versus GLP1a. A systematic literature review was performed on Pubmed and Embase, including studies comparing the effect of SGLT2i or GLP1a on new-onset AF and stroke incidence in T2DM patients. A random effects model was used to pool relative risk and 95% confidence intervals to assess the study outcomes. Univariate metaregression analysis was performed for selected demographics and comorbidities. Six observational studies were included in the analysis comprising 847,028 patients. Our meta-analysis found a significantly lower risk of new-onset AF in patients with T2DM treated with SGLT2i compared to those receiving GLP1a (RR = 0.76, 95% CI: 0.65 to 0.89). There was no statistically significant difference in the risk of stroke between SGLT2i and GLP1a (RR = 1.09, 95% CI = 0.98 to 1.21). Univariate meta-regression indicated male sex was a significant negative effect modifier for new-onset AF (coefficient = -0.0191, p-value = 0.0158). In conclusion, SGLT2i may reduce AF risk in T2DM patients, while GLP1a may provide a modest, nonsignificant protective effect against stroke. Further research is needed to confirm these results and guide cardiovascular risk management in patients with T2DM.