Beta-Blocker Usage in Patients With Heart Failure With Reduced Ejection Fraction During Acute Decompensated Heart Failure Hospitalizations.

Background: Acute decompensated heart failure accounts for more than 1 million hospitalizations in the United States every year. Beta-blockers are a first-line agent for patients experiencing heart failure with reduced ejection fraction, but beta-blocker use in patients hospitalized for acute decompensated heart failure remains low. We conducted an analysis of the existing evidence and guidelines to determine the conditions for prescribing beta-blockers to patients with acute decompensated heart failure. Methods: We searched the PubMed database for studies from 2004 to 2024 that included the search terms "beta blockers" and "acute decompensated heart failure." We included studies in which beta-blockers were used in patients with heart failure with reduced ejection fraction and excluded studies that did not study beta-blockers directly. We compiled recommendations from professional societies regarding beta-blocker usage-both for outpatients with heart failure with reduced ejection fraction and for patients hospitalized with acute decompensated heart failure. Results: Studies consistently demonstrated lower rates of mortality and rehospitalization when beta-blocker therapy was maintained for patients with heart failure with reduced ejection fraction who were already on beta-blocker therapy. Conversely, withdrawal of beta-blocker therapy was associated with increased in-hospital and short-term mortality. We summarized our findings in a guideline-based flowchart to help physicians make informed decisions regarding beta-blocker therapy in patients with acute decompensated heart failure. Based on the evidence, beta-blockers should be initiated at a low dose in patients with heart failure with reduced ejection fraction who have never been on beta-blockers, provided the patient is hemodynamically stable. Conclusion: Our research and our guideline-based flowchart promote guideline-directed use of beta-blockers to improve the outcomes of patients with heart failure with reduced ejection fraction.