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Home NEWS Science News Health

Machine learning informs a new tool to guide treatment for acute decompensated heart failure

Bioengineer by Bioengineer
January 30, 2024
in Health
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A recent study co-authored by Dr. Matthew Segar, a third-year cardiovascular disease fellow at The Texas Heart Institute and led by his research and residency mentor, University of Texas Southwestern Medical Center’s Dr. Ambarish Pandey, utilized a machine learning-based approach to identify, understand, and predict diuretic responsiveness in patients with acute decompensated heart failure (ADHF).

Dr. Matthew Segar, The Texas Heart Institute at Baylor St. Luke's Medical Center Cardiovascular Disease Fellow

Credit: Photo Credit: © THE TEXAS HEART INSTITUTE

A recent study co-authored by Dr. Matthew Segar, a third-year cardiovascular disease fellow at The Texas Heart Institute and led by his research and residency mentor, University of Texas Southwestern Medical Center’s Dr. Ambarish Pandey, utilized a machine learning-based approach to identify, understand, and predict diuretic responsiveness in patients with acute decompensated heart failure (ADHF).

The study “A Phenomapping Tool and Clinical Score to Identify Low Diuretic Efficiency in Acute Decompensated Heart Failure,” published in the prestigious Journal of American College Cardiology Heart Failure (JACC Heart Failure), leverages decades of clinical and registry datasets funded by the National Institutes of Health and American Heart Association.

The researchers leveraged machine-learning-based approaches to develop a prediction tool called the BAN-ADHF score, which showed promising results in accurately predicting diuretic response. After validation in other clinical populations, implementing this tool could potentially lead to personalized strategies for effectively managing the congestion of patients hospitalized with ADHF.

There remains a lack of agreement among experts regarding the most effective approach to address diuretic resistance in patients with heart failure who are stable hemodynamically and have an excess volume of fluid. It is generally recommended to optimize the dosage of loop diuretics before considering combination therapy; however, there is no consensus on how much the dosage should be increased before introducing another diuretic.

“Inefficient diuretic response in hospitalized patients can hinder treatment progress and increase the risk of post-discharge rehospitalization and mortality. It’s crucial to identify individuals with low diuretic efficiency early on to tailor decongestion strategies and improve clinical outcomes,” according to Dr. Segar.

ADHF is a public health issue that is becoming increasingly concerning. The disease results in emergency room visits, hospital admissions, and associated high healthcare costs. ADHF is characterized by the body having too much fluid, which often requires hospitalization or changing a patient’s current treatment plan.

“Today, a primary goal of treating ADHF is to relieve congestion using loop diuretic drugs. However, there is still uncertainty about the best dose of these agents to administer. Additionally, because of the heterogeneity of ADHF patients, a more personalized approach to predicting optimal dosing strategies is needed,” said Dr. Joseph G. Rogers, President and CEO of The Texas Heart Institute.

In the study, researchers from institutions across the United States utilized machine learning (ML) algorithms to identify subgroups of patients with acute heart failure based on their responsiveness to diuretic therapy. Specifically, the researchers developed a diuretic efficiency phenomapping approach for patients with ADHF by using publicly available and deidentified data from several clinical trials and registries, including DOSE, ROSE-AHF, CARRESS-HF, ATHENA-HF, ESCAPE, and the American Heart Association Precision Medicine Platform Get with the Guidelines-HF (GWTG-HF) registry. This participant-level pooled data enabled the investigators to develop a phenomapping approach and diuretic efficiency score. The patients within each subgroup shared similar characteristics but were clinically distinct from other subgroups, particularly in their response to diuretic therapy. In addition to differences in their diuretic response, the patient subgroups also had meaningfully different clinical outcomes, highlighting the prognostic utility of the phenogrouping approach. The investigators subsequently developed and validated the BAN-ADHF score to predict the probability of being in the phenogroup with the least diuretic response.

“We know the BAN-ADHF score can accurately identify, characterize, and predict diuretic resistance among individuals with ADHF mathematically. Now we must take this medical knowledge and conduct a clinical study to evaluate whether implementing the BAN-ADHF score in our care protocols improves outcomes for patients hospitalized with acute decompensated heart failure,” shared Dr. Segar.

Notably, the work described in this study received recognition from the National Institutes of Health’s National Heart, Lung, and Blood Institute (NHLBI) as a winning solution to the NHLBI Big Data Analysis Challenge: Creating New Paradigms for Heart Failure Research. The challenge encouraged the development of novel, open-source disease models to define subgroups of heart failure and support further advancements in managing the disease. Additionally, Dr. Segar received the American Heart Association’s Samuel A. Levine Early Career Clinical Investigator Award for his role in developing the phenomapping tool and the diuretic resistance clinical risk score. As part of the honor, he presented his research on “Development and Validation of a Phenomapping Tool To Identify Patients With Diuretic Resistance in Acute Decompensated Heart Failure: A Multi-Cohort Analysis” at the American Heart Association’s 2022 Scientific Sessions.

Study collaborators included investigators from The Texas Heart Institute, Duke University School of Medicine, Cleveland Clinic, Houston Methodist DeBakey Heart and Vascular Center, University of Mississippi Medical Center, Baylor Scott and White Research Institute, St. Vincent Heart Center, The University of Texas Southwestern Medical Center, Ronald Reagan UCLA Medical Center, Institute for Precision Cardiovascular Medicine at the American Heart Association, Stony Brook University School of Medicine, Northwestern University School of Medicine, and University of Colorado.

Segar MW, Khan MS, Patel KV, Butler J, Ravichandran AK, Walsh MN, Willett D, Fonarow GC, Drazner MH, Mentz RJ, Hall J, Farr MA, Hedayati SS, Yancy C, Allen LA, Tang WHW, Pandey A. A Phenomapping Tool and Clinical Score to Identify Low Diuretic Efficiency in Acute Decompensated Heart Failure. JACC Heart Fail. 2023 Dec 13:S2213-1779(23)00688-1. doi: 10.1016/j.jchf.2023.09.029. Online ahead of print.

 

About The Texas Heart Institute

The Texas Heart Institute is an independent, nonprofit organization that is improving cardiovascular health through trailblazing research, thought leadership, education and patient care. Located within the Texas Medical Center in Houston, Texas, and founded in 1962 by renowned cardiac surgeon Dr. Denton Cooley, The Texas Heart Institute performed the first successful heart transplant and total artificial heart implant in the United States. Since then, our physicians and surgeons have remained recognized as worldwide leaders in diagnosing and treating even the most complex cardiovascular conditions. Research programs at The Texas Heart Institute continue to push the boundaries of cardiovascular science by translating laboratory discovery into patient care. The Texas Heart Institute has been ranked among the top cardiovascular centers in the United States by U.S. News & World Report for more than 30 years. http://www.texasheart.org/  @texasheartinstitute

 

 



Journal

JACC Heart Failure

DOI

10.1016/j.jchf.2023.09.029

Method of Research

Data/statistical analysis

Subject of Research

People

Article Title

A Phenomapping Tool and Clinical Score to Identify Low Diuretic Efficiency in Acute Decompensated Heart Failure

Article Publication Date

13-Dec-2023

COI Statement

Dr Pandey has received research support from the National Institute of Health (5R01MD017529, R21HL169708), grant funding from Applied Therapeutics and Gilead Sciences; has received honoraria outside of the present study as an advisor/consultant for Tricog Health Inc, Lilly USA, Rivus, Cytokinetics, Roche Diagnostics, Axon therapies, Medtronic, Edward Lifesciences, Science37, Novo Nordisk, Bayer, Merck, Sarfez Pharmaceuticals, Emmi Solutions; has received nonfinancial support from Pfizer and Merck; and is also a consultant for Palomarin Inc with stock compensation. Dr Segar has received honoraria from Merck. Dr Patel has served as a consultant to Novo Nordisk. Dr Fonarow has done consulting for Abbott, Amgen, AstraZeneca, Bayer, Cytokinetics, Janssen, Medtronic, Merck, and Novartis. Dr Mentz has received research support and honoraria from Abbott, American Regent, Amgen, AstraZeneca, Bayer, Boehringer Ingelheim/Eli Lilly, Boston Scientific, Cytokinetics, Fast BioMedical, Gilead, Innolife, Medtronic, Merck, Novartis, Relypsa, Respicardia, Roche, Sanofi, Vifor, Windtree Therapeutics, and Zoll. Dr Allen reports grant funding from American Heart Association, National Institutes of Health, and PCORI; and consulting fees from Amgen, Boston Scientific, Cytokinetics, Novartis, and WCG ACI Clinical. Dr Pandey has received grant funding from Applied Therapeutics and Gilead Sciences; has received honoraria outside of the present study as an advisor/consultant for Tricog Health Inc, Lilly USA, Rivus, Cytokinetics, Bayer, Edwards Lifesciences, Medtronic, Sarfez Pharmacuticals, Novo Nordisk, and Roche Diagnostics; has received support from Pfizer and Merck; and is a consultant for Palomarin Inc. with stock compensation. Dr Khan serves as an advisory board member for Bayer. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.

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