Impact of SGLT2 Inhibitors on Left Ventricular Remodeling in Diabetic Patients with Acute Myocardial Infarction.

Objective: To assess the effect of sodium-glucose cotransporter 2 inhibitors (SGLT2-I) on cardiac remodeling and prognosis in type 2 diabetes mellitus (T2DM) patients presenting with acute myocardial infarction (AMI).

Methods: In this single-center retrospective active-comparator study, consecutive diabetic AMI patients undergoing percutaneous coronary intervention (PCI) between 2021 and 2023 were enrolled. Patients were divided into SGLT2-I users and non-SGLT2-I users based on discharge medications. The primary endpoint was the left ventricular remodeling index (LVRI), defined as the relative change in LV end-diastolic volume after six months. The secondary outcomes included major adverse cardiovascular events (MACE), comprising all-cause mortality, hospitalization for heart failure, nonfatal MI, and nonfatal stroke.

Results: The study comprised 423 T2DM AMI patients(with or without ST-segment elevation), with 239 SGLT2-I users and 184 non-SGLT2-I users. At six months, LVRI was significantly lower in the SGLT2-I users compared to the non-SGLT2-I users (3.49 ± 19.71 vs 7.06 ± 15.15,  = .042). The non-SGLT2-I users exhibited a higher prevalence of positive LVR (LVRI > 0%) (64.67% vs 50.63%,  = .004) and pathological LVR (LVRI > 20%) (19.57% vs 12.13%,  = .036). Multivariate logistic regression indicated that SGLT2-I was associated with a reduced risk of LVR (OR 0.6; 95%CI 0.38-0.97;  = .035). During a mean follow-up of 25 ± 8 months, Kaplan-Meier analysis demonstrated a lower rate of MACE-free survival in the non-SGLT2-I users ( = .005).

Conclusions: SGLT2-I protects against LVR and lowers the risk of adverse cardiovascular outcomes in T2DM AMI patients.