Left Ventricular Systolic Function After 3 Months of SGLT2 Inhibitor Therapy in Heart Failure Patients with Reduced

Ivona Mustapic1, Darija Bakovic2,3, Zora Susilovic-Grabovac2

  • 1Cardiovascular Diseases Department, University Hospital of Split, Soltanska 1, 21000, Split, Croatia. mateljanka@gmail.com.

Insights

Sodium-glucose cotransporter 2 inhibitors (SGLT2i) significantly improved left ventricular (LV) systolic function in heart failure with reduced ejection fraction (HFrEF) patients. Adding SGLT2i to optimized medical therapy enhanced myocardial work index and ejection fraction.

Area of Science:

  • Cardiology
  • Pharmacology

Background:

  • Limited understanding of sodium-glucose cotransporter 2 inhibitors (SGLT2i) effects on left ventricular (LV) systolic function in heart failure with reduced ejection fraction (HFrEF).
  • SGLT2i are increasingly used in HFrEF management, necessitating further investigation into their impact on cardiac mechanics.

Purpose of the Study:

  • To evaluate the effects of SGLT2 inhibitors on echocardiographic parameters of LV systolic function in HFrEF patients.
  • To compare changes in myocardial work index (MWI), 3D ejection fraction (3D LVEF), and global longitudinal strain (GLS) with and without SGLT2i treatment.

Main Methods:

  • Prospective study of 59 HFrEF outpatients divided into SGLT2i plus optimized medical therapy (OMT) group (n=41) and OMT alone group (n=18).
  • Echocardiographic parameters (MWI, 3D LVEF, GLS), NT-proBNP levels, and NYHA functional class were assessed at baseline and 3-month follow-up.

Main Results:

  • The SGLT2i+ group demonstrated significantly greater improvement in MWI compared to the SGLT2i- group at 3 months.
  • Both groups showed significant improvements in 3D LVEF, LV GLS, NT-proBNP, and NYHA class, with superior gains observed in the SGLT2i+ group.
  • SGLT2i addition to OMT led to enhanced LV systolic function and clinical status in HFrEF patients.

Conclusions:

  • Adding SGLT2 inhibitors to optimized medical therapy significantly improves LV systolic function in HFrEF outpatients.
  • SGLT2i therapy enhances myocardial work and overall cardiac performance beyond standard optimized medical therapy.
  • These findings support the role of SGLT2 inhibitors in improving cardiac mechanics and functional capacity in HFrEF.

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