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Machine learning to optimize use of natriuretic peptides in the diagnosis of acute heart failure

  • on behalf of the CoDE-HF investigators
  • University of Edinburgh
  • Thomas Jefferson University
  • Assistance publique – Hôpitaux de Paris
  • Princess Grace Hospital Center
  • University of Basel
  • Liverpool Heart and Chest Hospital NHS Foundation Trust
  • University of Maryland, Baltimore
  • Universidade Federal Fluminense
  • Thermo Fisher Scientific, Inc.
  • Charité – Universitätsmedizin Berlin
  • Université Paris Cité
  • Université Paris-Saclay
  • The Jikei University School of Medicine
  • National University Hospital
  • Krankenhaus Bad Ischl
  • Hospital Voecklabruck
  • Monash University
  • Australian Catholic University
  • The University of Sydney
  • Concord Repatriation General Hospital
  • Vanderbilt University
  • Duke University
  • London School of Hygiene and Tropical Medicine
  • University of Otago
  • National Heart Centre Singapore
  • University of Glasgow
  • Harvard Clinical Research Institute

Research output: Contribution to journalReview articlepeer-review

8 Scopus citations

Abstract

Aims B-type natriuretic peptide (BNP) and mid-regional pro-atrial natriuretic peptide (MR-proANP) testing are guideline-recommended to aid in the diagnosis of acute heart failure. Nevertheless, the diagnostic performance of these biomarkers is uncertain. Methods and results We performed a systematic review and individual patient-level data meta-analysis to evaluate the diagnostic performance of BNP and MR-proANP. We subsequently developed and externally validated a decision-support tool called CoDE-HF that combines natriuretic peptide concentrations with clinical variables using machine learning to report the probability of acute heart failure. Fourteen studies from 12 countries provided individual patient-level data in 8493 patients for BNP and 3899 patients for MR-proANP, in whom, 48.3% (4105/8493) and 41.3% (1611/3899) had an adjudicated diagnosis of acute heart failure, respectively. The negative predictive value (NPV) of guideline-recommended thresholds for BNP (100 pg/mL) and MR-proANP (120 pmol/L) was 93.6% (95% confidence interval 88.4-96.6%) and 95.6% (92.2-97.6%), respectively, whilst the positive predictive value (PPV) was 68.8% (62.9-74.2%) and 64.8% (56.3-72.5%). Significant heterogeneity in the performance of these thresholds was observed across important subgroups. CoDE-HF was well calibrated with excellent discrimination in those without prior acute heart failure for both BNP and MR-proANP [area under the curve of 0.914 (0.906-0.921) and 0.929 (0.919-0.939), and Brier scores of 0.110 and 0.094, respectively]. CoDE-HF with BNP and MR-proANP identified 30% and 48% as low-probability [NPV of 98.5% (97.1-99.3%) and 98.5% (97.7-99.0%)], and 30% and 28% as high-probability [PPV of 78.6% (70.4-85.0%) and 75.1% (70.9-78.9%)], respectively, and performed consistently across subgroups. Conclusion The diagnostic performance of guideline-recommended BNP and MR-proANP thresholds for acute heart failure varied significantly across patient subgroups. A decision-support tool that combines natriuretic peptides and clinical variables was more accurate and supports more individualized diagnosis.

Original languageEnglish
Pages (from-to)474-488
Number of pages15
JournalEuropean Heart Journal: Acute Cardiovascular Care
Volume14
Issue number8
DOIs
StatePublished - Aug 1 2025

Keywords

  • Heart failure
  • Machine learning
  • Natriuretic peptide

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