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Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
Published on: February 13, 2021
Phenotypic Features of Heart Failure in Patients with Preserved Left Ventricular Ejection Fraction
I A Mustafina1, M R Plotnikova1, Yu N Belenkov2
1Bashkir State Medical University.
Insights
Chronic heart failure with preserved ejection fraction (CHFpEF) subphenotypes show distinct clinical and laboratory traits. Higher neuropilin-1 (NRP-1) levels correlate with reduced left ventricular ejection fraction (LVEF) in CHFpEF patients.
Area of Science:
- Cardiology
- Heart Failure Research
- Biomarker Discovery
Background:
- Chronic heart failure with preserved ejection fraction (CHFpEF) presents significant clinical heterogeneity.
- Understanding CHFpEF mechanisms and patient stratification requires subphenotype identification.
- Ischemic heart disease is a common comorbidity in CHFpEF.
Purpose of the Study:
- To identify clinical, laboratory, and instrumental characteristics of CHFpEF patients with ischemic heart disease.
- To explore differences in CHFpEF subphenotypes based on left ventricular ejection fraction (LVEF).
- To investigate the association of specific biomarkers with LVEF in CHFpEF.
Main Methods:
- Study included 145 patients with CHFpEF undergoing coronary artery bypass grafting.
- Patients were stratified into two groups: LVEF 50-60% and LVEF >60%.
- Assessed echocardiography, laboratory tests, and plasma biomarkers including NT-proBNP, VEGF, H-FABP, ST2, VCAM, PAI-1, and NRP-1.
Main Results:
- CHFpEF subphenotypes exhibit varied clinical and laboratory profiles.
- Higher concentrations of neuropilin-1 (NRP-1) were significantly associated with lower LVEF in the CHFpEF cohort.
- Specific biomarkers demonstrated differential expression across LVEF subgroups.
Conclusions:
- Subclassification of CHFpEF patients based on LVEF reveals distinct characteristics.
- Neuropilin-1 emerges as a potential biomarker associated with reduced LVEF in CHFpEF.
- Further research into CHFpEF subphenotypes may improve patient management and therapeutic strategies.
Abstract:
Aim Chronic heart failure with preserved left ventricular ejection fraction (CHFpEF) is characterized by high prevalence, clinical heterogeneity, and insufficient understanding of its mechanisms compared to other CHF types. One approach to improving the patient group stratification is the identification of subphenotypes based on clinical and functional data and biomarker assessment. The aim of this study was to identify the clinical, laboratory, and instrumental characteristics of patients with CHFpEF and ischemic heart disease based on left ventricular ejection fraction (LVEF).Material and methods This study included 145 patients with CHFpEF who were scheduled for coronary artery bypass grafting. Inclusion criteria were NYHA class ≥2 symptomatic heart failure, preserved LVEF ≥50%, and a HFA-PEFF algorithm total score ≥3, which helps diagnose CHFpEF. Patients were divided into a group with LVEF 50-60% (group 1; n=53) and a group with LVEF >60% (group 2; n=92). Before surgery, echocardiography, standard laboratory tests, and measurements of plasma biomarkers (N-terminal pre-brain natriuretic peptide (NT-proBNP), vascular endothelial growth factor (VEGF), heart fatty acid binding protein (H-FABP), interleukin receptor ST2, vascular endothelial cell adhesion molecule (VCAM), plasminogen activator inhibitor type 1 (PAI-1), neuropilin-1 (NRP-1) were performed in all patients.Conclusion CHFpEF subphenotypes have different clinical and laboratory characteristics. Higher neuropilin-1 concentrations were associated with lower LVEF in CHFpEF.
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