Inpatient Use of Guideline-Directed Medical Therapy During Heart Failure Hospitalizations Among Community-Based Health Systems.

Zheng J, Sandhu AT, Bhatt AS, Collins SP, Flint KM, Fonarow GC, Fudim M, Greene SJ, Heidenreich PA, Lala A, Testani JM, Varshney AS, Wi RSK, Ambrosy AP. Inpatient Use of Guideline-Directed Medical Therapy During Heart Failure Hospitalizations Among Community-Based Health Systems. JACC. Heart failure. 2025 Jan 1; 13(1):43-54.

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Abstract:

BACKGROUND: Guideline-directed medical therapy (GDMT) for heart failure with reduced ejection fraction (HFrEF) remains underused. Acute heart failure (HF) hospitalization represents a critical opportunity for rapid initiation of evidence-based medications. However, data on GDMT use at discharge are mostly derived from national quality improvement registries. OBJECTIVES: This study aimed to describe contemporary GDMT use patterns across HF hospitalizations at community-based health systems. METHODS: The authors identified HF hospitalizations from 2016 to 2022 in a U.S. database aggregating deidentified electronic health record data from more than 30 health systems. In-hospital and discharge rates of GDMT use were reported for eligible HFrEF patients. Factors associated with inpatient GDMT use and predischarge discontinuation were evaluated with the use of multivariable models. RESULTS: A total of 20,387 HF hospitalizations among 13,729 HFrEF patients were identified. Renin-angiotensin system inhibitors, beta-blockers, and mineralocorticoid receptor antagonists were administered during 70%, 86%, and 37% of eligible hospitalizations, respectively. Angiotensin receptor-neprilysin inhibitors and sodium-glucose cotransporter 2 inhibitors were used in 17% and 8% of eligible hospitalizations, respectively. Discharge GDMT rates were low. Triple/quadruple therapy was administered in 26% of hospitalizations, falling to 14% on discharge. Predischarge GDMT discontinuations were associated with inpatient hypotension, hyperkalemia, and worsening renal function, but 43%-57% had no medical contraindications. In adjusted analyses, use of 3 or more GDMT classes was associated with fewer 90-day all-cause deaths and HF readmissions compared with less comprehensive GDMT. CONCLUSIONS: Inpatient GDMT use in a national analysis of HF hospitalizations was lower than reported in quality improvement registries. High discontinuation rates emphasize an unmet need for inpatient and postdischarge strategies to optimize GDMT use.