Optimizing SGLT2 Inhibitor Initiation in Acute Decompensated Heart Failure with Reduced Ejection Fraction: A Multi-Specialty Clinical Consensus Background: Sodium-glucose co-transporter 2 (SGLT2) inhibitors have demonstrated significant benefits in chronic heart failure with reduced ejection fraction (HFrEF) and, more recently, in acute decompensated heart failure (ADHF). However, practical guidance regarding their initiation during ADHF hospitalization, particularly in patients with concomitant renal impairment, remains a subject of clinical debate. This consensus paper synthesizes expert opinion on critical aspects of SGLT2 inhibitor use in this acute setting.
Methods: This study utilized a community peer-review methodology facilitated by the tachyDx platform. A clinical scenario involving a 68-year-old female with ADHF-HFrEF and an eGFR of 32 mL/min/1.73m² was presented to a panel of four verified physicians (Cardiology, Nephrology, Internal Medicine). Their responses, addressing specific questions on eGFR thresholds, renal monitoring, AKI risk, and agent selection, were subjected to peer voting by 89 community physicians, establishing a consensus-driven framework.
Results: Consensus emerged for SGLT2 inhibitor initiation at eGFR thresholds as low as 20-25 mL/min/1.73m², provided hemodynamic stability and euvolemia are achieved. Renal function monitoring at 48 hours and 7 days post-initiation was recommended, with an expected initial eGFR dip of 3-5 mL/min. The perceived risk of acute kidney injury (AKI) was primarily attributed to volume depletion rather than direct drug effect, necessitating concomitant loop diuretic dose reduction (20-30%). Full-dose initiation was advocated once patients were stable (off vasopressors/inotropes for 24 hours, stable diuretics). Euglycemic diabetic ketoacidosis was identified as a rare but significant concern, particularly in nutritionally compromised patients.
Conclusions: This multi-specialty consensus supports the early initiation of SGLT2 inhibitors in hemodynamically stable ADHF-HFrEF patients, even with moderate renal impairment, emphasizing careful volume management and renal monitoring. These findings provide practical, evidence-informed guidance for clinicians navigating the complexities of SGLT2 inhibitor use in the acute care setting.
cardiology nephrology evidence-based-medicine