Abstract
AimsThis meta-analysis aimed to evaluate the efficacy of sodium-glucose cotransporter-2 (SGLT-2) inhibitors in different types of heart failure (HF). MethodsRandomized controlled trials (RCTs) comparing SGLT-2 inhibitors with placebo in patients with HF were searched in PubMed, the Cochrane Library database, and clinicaltrials.gov. A random-effects model was used for evidence synthesis. The primary endpoint was cardiac death. ResultsWe included 13 studies (12 RCTs). In patients with HF with preserved ejection fraction (HFpEF), SGLT-2 inhibitors reduced the composite endpoint of cardiac death or rehospitalization because of HF (HHF) (HR: 0.78, 95% CI: 0.70–0.87, I2 = 0%, P < 0.001) and that of HHF (HR: 0.74; 95% CI: 0.64–0.85, I2 = 0%, P < 0.001) but not that of cardiac death (HR: 1.01, 95% CI: 0.80–1.28, I2 = 23.9%, P = 0.943). In patients with HF with reduced EF (HFrEF), SGLT-2 inhibitors reduced the composite endpoint of cardiac death or HHF (HR: 0.75, 95% CI: 0.69–0.82, I2 = 0%, P < 0.001) and the individual endpoints of cardiac death (HR: 0.84, 95% CI: 0.75–0.95, I2 = 0%, P = 0.007) and HHF (HR: 0.69, 95% CI: 0.62–0.77, I2 = 0%, P < 0.001). ConclusionsSGLT-2 inhibitors reduced the risk of cardiac death in patients with HFrEF but not in those with HFpEF.
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