Effects of Dapagliflozin on Novel Inflammatory Markers in Heart Failure Patients

Background Sodium–glucose cotransporter‐2 (SGLT‐2) inhibitors have been established to decrease hospitalizations and cardiac death within all heart failure groups. The exact mechanisms by which the oral antidiabetic medication dapagliflozin achieves this advantage are still unknown. The potential beneficial effects of dapagliflozin on inflammation and the immune system may contribute to these mechanisms. Method The laboratory and echocardiographic data of 191 consecutive patients who were started on dapagliflozin due to heart failure were compared before and 6 months after the treatment began. The systemic immune–inflammation index (SII) and the systemic inflammation response index (SIRI) were calculated using the following formulae: (platelet × neutrophil)/lymphocyte and (neutrophil × monocyte)/lymphocyte, respectively. Results The mean age of the patients included in the study was 66.17 ± 10.7 years. A total of 156 patients (81.7%) had diabetes mellitus. Seventy patients (36.6%) had heart failure with reduced ejection fraction (HFrEF), 31 (16.2%) had heart failure with mildly reduced ejection fraction (HFmrEF), and 90 (47.1%) had heart failure with preserved ejection fraction (HFpEF). While no significant change was observed in echocardiographic parameters with dapagliflozin treatment ( p > 0.05), a significant decrease was detected in the SII and SIRI (1357.4 ± 1404.3 vs. 805.8 ± 586.7, p < 0.001 and 3.68 ± 3.6 vs. 2.19 ± 1.7, p < 0.001). In these indices, a consistently significant decrease was observed in all groups, irrespective of the type of heart failure and the presence of diabetes mellitus ( p < 0.005). Conclusion With dapagliflozin treatment, the most recent inflammation parameters, SII and SIRI, have significantly decreased. This effect may be one reason for the cardiovascular benefits of dapagliflozin treatment.