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  • Title: SGLT2-inhibitors in diabetic patients with severe aortic stenosis and cardiac damage undergoing transcatheter aortic valve implantation (TAVI).
    Author: Paolisso P, Belmonte M, Gallinoro E, Scarsini R, Bergamaschi L, Portolan L, Armillotta M, Esposito G, Moscarella E, Benfari G, Montalto C, Shumkova M, de Oliveira EK, Angeli F, Orzalkiewicz M, Fabroni M, Baydaroglu N, Munafò AR, D'Atri DO, Casenghi M, Scisciola L, Barbieri M, Marfella R, Gragnano F, Conte E, Pellegrini D, Ielasi A, Andreini D, Penicka M, Oreglia JA, Calabrò P, Bartorelli A, Pizzi C, Palmerini T, Vanderheyden M, Saia F, Ribichini F, Barbato E.
    Journal: Cardiovasc Diabetol; 2024 Nov 21; 23(1):420. PubMed ID: 39574095.
    Abstract:
    BACKGROUND: A substantial number of patients with severe aortic stenosis (AS) undergoing transcatheter aortic valve implantation (TAVI) experience adverse events after TAVI, with health care expenditure. We aimed to investigate cardiac remodeling and long-term outcomes in diabetic patients with severe AS, left ventricular ejection fraction (LVEF) < 50%, and extra-valvular cardiac damage (EVCD) undergoing TAVI treated with sodium-glucose cotransporter-2 inhibitors (SGLT2i) versus other glucose-lowering strategies (no-SGLT2i users). METHODS: Multicenter international registry of consecutive diabetic patients with severe AS, LVEF < 50%, and EVCD undergoing TAVI. Based on glucose-lowering therapy at hospital discharge, patients were stratified in SGLT2i versus no-SGLT2i users. The primary endpoint was a composite of all-cause death and heart failure (HF)-hospitalization (major adverse cardiovascular events, MACE) at 2-year follow-up. Secondary outcomes included all-cause death, cardiovascular death, and HF hospitalization. RESULTS: The study population included 311 patients, among which 24% were SGLT2i users. Within 1-year after TAVI, SGLT2i users experienced a higher rate of LV recovery (p = 0.032), especially those with baseline LVEF ≤ 30% (p = 0.026), despite the lower baseline LVEF. Patients not treated with SGLT2i were more likely to progress to a worse EVCD stage over time (p = 0.018). At 2-year follow-up, SGLT2i use was associated with a lower rate of MACE, all-cause death, and HF hospitalization (p < 0.01 for all). After adjusting for confounding factors, the use of SGLT2i emerged as an independent predictor of reduced MACE (HR = 0.45; 95% CI 0.17-0.75; p = 0.007), all-cause death (HR = 0.51; 95% CI 0.25-0.98; p = 0.042) and HF-hospitalization (HR = 0.40; 95% CI 0.27-0.62; p = 0.004). CONCLUSIONS: In diabetic patients with severe AS, LVEF < 50%, and EVCD undergoing TAVI, the use of SGLT2i was associated with a more favorable cardiac remodeling and a reduced risk of MACE at 2-year follow-up.
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