SGLT2i and Cardiovascular Events in Patients With Concomitant Atrial Fibrillation and Diabetes: A TriNetX Cohort Study

Sodium-glucose co-transporter 2 inhibitors (SGLT2i) enhance cardiovascular outcomes in individuals with type 2 diabetes mellitus (T2DM). Whether such effects also occur in T2DM patients with atrial fibrillation (AF) remains unknown. We aimed to investigate SGLT2i use on cardiovascular outcomes in patients with concomitant AF and T2DM. Patients with both AF and T2DM were identified from TriNetX, an international electronic medical record. Participants were divided into 2 groups according to their use of SGLT2i, at a 1:1 distribution through propensity score matching (PSM). The hazard ratio (HR) for clinical outcomes was determined using multivariate Cox hazards regression model. We studied 339 792 patients with AF and T2DM, with 32 945 (9.70%) SGLT2i users. Following PSM, 17 011 patients aged 68.4 ± 7.9 years were included in each group. After a 3-year follow-up, patients treated with SGLT2i showed significantly reduced risks of stroke (adjusted HR: 0.830, P < .001), dementia (adjusted HR: 0.662, P < .001), long-standing persistent AF (adjusted HR: 0.917, P < .001), heart failure (adjusted HR: 0.833, P < .001), and all-cause mortality (adjusted HR: 0.532, P < .001). The use of SGLT2i was associated with reduced risks of stroke, dementia, long-standing persistent AF, heart failure, and mortality in patients with both AF and T2DM. SGLT2i may be considered as a potential first-line therapy for this population.