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Effect of an Emergency Department Care Bundle on 30-Day Hospital Discharge and Survival Among Elderly Patients With Acute Heart FailureThe ELISABETH Randomized Clinical Trial

Educational Objective
To learn the effect of an early comprehensive care bundle on clinical outcomes in older patients with acute heart failure.
1 Credit CME
Key Points

Question  Does an intervention aimed at improving guideline adherence for the management of acute heart failure, including intensive intravenous nitrate therapy and management of precipitating factors, improve hospital discharge and survival at 30 days?

Findings  In this stepped-wedge cluster randomized trial that included 503 patients 75 years and older who presented to the emergency department with acute heart failure, implementation of an early and comprehensive care bundle compared with usual care improved guideline adherence, but had no significant effect on number of days alive and out of hospital at 30 days (median of 19 d in both groups).

Meanings  This emergency department care bundle did not improve 30-day outcomes among older patients with acute heart failure.

Abstract

Importance  Clinical guidelines for the early management of acute heart failure in the emergency department (ED) setting are based on only moderate levels of evidence, with subsequent low adherence to these guidelines.

Objective  To test the effect of an early guideline-recommended care bundle on short-term prognosis in older patients with acute heart failure in the ED.

Design, Setting, and Participants  Stepped-wedge cluster randomized trial in 15 EDs in France of 503 patients 75 years and older with a diagnosis of acute heart failure in the ED from December 2018 to September 2019 and followed up for 30 days until October 2019.

Interventions  A care bundle that included early intravenous nitrate boluses; management of precipitating factors, such as acute coronary syndrome, infection, or atrial fibrillation; and moderate dose of intravenous diuretics (n = 200). In the control group, patient care was left to the discretion of the treating emergency physician (n = 303). Each center was randomized to the order in which they switched to the “intervention period.” After the initial 4-week control period for all centers, 1 center entered in the intervention period every 2 weeks.

Main Outcomes and Measures  The primary end point was the number of days alive and out of hospital at 30 days. Secondary outcomes included 30-day all-cause mortality, 30-day cardiovascular mortality, unscheduled readmission, length of hospital stay, and kidney impairment.

Results  Among 503 patients who were randomized (median age, 87 years; 298 [59%] women), 502 were analyzed. In the intervention group, patients received a median (interquartile range) of 27.0 (9-54) mg of intravenous nitrates in the first 4 hours vs 4.0 (2.0-6.0) mg in the control group (adjusted difference, 23.8 [95% CI, 13.5-34.1]). There was a significantly higher percentage of patients in the intervention group treated for their precipitating factors than in the control group (58.8% vs 31.9%; adjusted difference, 31.1% [95% CI, 14.3%-47.9%]). There was no statistically significant difference in the primary end point of the number of days alive and out of hospital at 30 days (median [interquartile range], 19 [0- 24] d in both groups; adjusted difference, −1.9 [95% CI, −6.6 to 2.8]; adjusted ratio, 0.88 [95% CI, 0.64-1.21]). At 30 days, there was no significant difference between the intervention and control groups in mortality (8.0% vs 9.7%; adjusted difference, 4.1% [95% CI, −17.2% to 25.3%]), cardiovascular mortality (5.0% vs 7.4%; adjusted difference, 2.1% [95% CI, −15.5% to 19.8%]), unscheduled readmission (14.3% vs 15.7%; adjusted difference, −1.3% [95% CI, −26.3% to 23.7%]), median length of hospital stay (8 d in both groups; adjusted difference, 2.5 [95% CI, −0.9 to 5.8]), and kidney impairment (1% in both groups).

Conclusions and Relevance  Among older patients with acute heart failure, use of a guideline-based comprehensive care bundle in the ED compared with usual care did not result in a statistically significant difference in the number of days alive and out of the hospital at 30 days. Further research is needed to identify effective treatments for acute heart failure in older patients.

Trial Registration  ClinicalTrials.gov Identifier: NCT03683212

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Article Information

Corresponding Author: Yonathan Freund, MD, PhD, Service d’accueil des urgences, 47-83 Bd de l’hôpital, 75013 Paris, France (yonathan.freund@aphp.fr).

Accepted for Publication: September 9, 2020.

Author Contributions: Drs Freund and Simon had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. All data of the study can be provided upon request to the corresponding author.

Concept and design: Freund, Cachanado, Gorlicki, Khellaf, Bokobza, Simon, Mebazaa.

Acquisition, analysis, or interpretation of data: Freund, Cachanado, Delannoy, Laribi, Yordanov, Gorlicki, Chouihed, Feral-Pierssens, Truchot, Desmettre, Occelli, Bobbia, Khellaf, Ganansia, Bokobza, Balen, Beaune, Bloom, Mebazaa.

Drafting of the manuscript: Freund, Cachanado, Khellaf, Bloom, Mebazaa.

Critical revision of the manuscript for important intellectual content: Freund, Delannoy, Laribi, Yordanov, Gorlicki, Chouihed, Feral-Pierssens, Truchot, Desmettre, Occelli, Bobbia, Ganansia, Bokobza, Balen, Beaune, Bloom, Simon, Mebazaa.

Statistical analysis: Freund, Cachanado.

Obtained funding: Simon, Mebazaa.

Administrative, technical, or material support: Delannoy, Laribi, Chouihed, Truchot, Bobbia, Ganansia, Bloom, Simon.

Supervision: Freund, Delannoy, Khellaf, Ganansia, Bokobza, Bloom, Simon, Mebazaa.

Conflict of Interest Disclosures: Dr Laribi reported receiving personal fees from AstraZeneca, Aspen, Novartis, Bristol Myers Squibb, and Roche outside the submitted work. Dr Simon reported receiving grants from Direction générale de l'offre de soins Ministry of Health during the conduct of the study and grants and personal fees from AstraZeneca, Novartis, and Sanofi; grants from Bayer, Daiichi-Sankyo, Eli Lilly, GlaxoSmithKline, and Merck Sharp & Dohme; and personal fees from Ablative Solutions outside the submitted work. Dr Mebazaa reported receiving personal fees from Novartis, Orion, Roche, Sanofi, Otsuka, Philips, and Servier; grants and personal fees from Adrenomed and Abbott; and grants from 4TEEN4 outside the submitted work. No other disclosures were reported.

Funding/Support: The research was funded by a grant from Programme Hospitalier de Recherche Clinique (PHRC 2017; Ministère de la Santé, Paris, France). The study was sponsored by Assistance Publique–Hôpitaux de Paris.

Role of the Funder/Sponsor: The funder and sponsor had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.

Data Sharing Statement: See Supplement 3.

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