Values are presented as mean ± standard deviation for normally distributed variables (compared with one-way ANOVA) and as median (interquartile range) for non-normally distributed variables (compared with Kruskal-Wallis test). Categorical variables are presented as n (%) and were compared using the Chi-square test or Fisher’s exact test. Post-hoc comparisons were conducted using Tukey’s test or Dunn’s test with Holm correction, p values represent overall comparisons across the three phenotypes. BMI: body mass index; LAVI: left atrial volume index; LV: left ventricular; RAAS: renin-angiotensin-aldosterone system; RV: right ventricular.
Declarations
Author contributions
EAR: Software, Validation, Formal analysis, Data curation, Visualization. AAI: Conceptualization, Writing—original draft, Investigation, Writing—review & editing. OND: Conceptualization, Writing—original draft, Methodology, Project administration, Resources, Supervision. ARK: Writing—review & editing, Supervision. OMD: Resources. All authors read and approved the submitted version.
Conflicts of interest
The authors declare that they have no conflicts of interest.
Ethical approval
The study was conducted in accordance with the principles of Good Clinical Practice and the Declaration of Helsinki (version 2013). The study protocol was approved by the Local Ethics Committee of the National Medical Research Center for Therapy and Preventive Medicine (approval No. 04-05/23 dated September 18, 2023).
Consent to participate
Informed consent to participate in the study was obtained from all participants.
Consent to publication
Informed consent to publication was obtained from relevant participants.
Availability of data and materials
The datasets for this manuscript are not publicly available due to ethical restrictions. Requests for accessing the datasets should be directed to Dr Olga N. Dzhioeva, Email: ODzhioeva@gnicpm.ru.
Open Exploration maintains a neutral stance on jurisdictional claims in published institutional affiliations and maps. All opinions expressed in this article are the personal views of the author(s) and do not represent the stance of the editorial team or the publisher.
References
Canepa M, Kapelios CJ, Benson L, Savarese G, Lund LH. Temporal Trends of Heart Failure Hospitalizations in Cardiology Versus Noncardiology Wards According to Ejection Fraction: 16-Year Data From the SwedeHF Registry.Circ Heart Fail. 2022;15:e009462. [DOI] [PubMed]
Grigore M, Nicolae C, Grigore AM, Balahura AM, Păun N, Uscoiu G, et al. Contemporary Perspectives on Congestion in Heart Failure: Bridging Classic Signs with Evolving Diagnostic and Therapeutic Strategies.Diagnostics (Basel). 2025;15:1083. [DOI] [PubMed] [PMC]
Van Aelst LNL, Arrigo M, Placido R, Akiyama E, Girerd N, Zannad F, et al. Acutely decompensated heart failure with preserved and reduced ejection fraction present with comparable haemodynamic congestion.Eur J Heart Fail. 2018;20:738–47. [DOI] [PubMed]
Palazzuoli A, Evangelista I, Beltrami M, Pirrotta F, Tavera MC, Gennari L, et al. Clinical, Laboratory and Lung Ultrasound Assessment of Congestion in Patients with Acute Heart Failure.J Clin Med. 2022;11:1642. [DOI] [PubMed] [PMC]
Koratala A, Romero-González G, Soliman-Aboumarie H, Kazory A. Unlocking the Potential of VExUS in Assessing Venous Congestion: The Art of Doing It Right.Cardiorenal Med. 2024;14:350–74. [DOI] [PubMed]
Palazzuoli A, Ruocco G, Pellicori P, Gargani L, Coiro S, Lamiral Z, et al. Multi-modality assessment of congestion in acute heart failure: Associations with left ventricular ejection fraction and prognosis.Curr Probl Cardiol. 2024;49:102374. [DOI] [PubMed]
Dzhioeva ON, Rogozhkina EA, Ivanova AA, Vedenikin TY, Drapkina OM. Ultrasound-assisted diagnosis of decompensated heart failure in general practice. Guideline.Primary Health Care (Russ Fed). 2026;2:112–37. [DOI]
Beaubien-Souligny W, Rola P, Haycock K, Bouchard J, Lamarche Y, Spiegel R, et al. Quantifying systemic congestion with Point-Of-Care ultrasound: development of the venous excess ultrasound grading system.Ultrasound J. 2020;12:16. [DOI] [PubMed] [PMC]
de la Espriella R, Santas E, Zegri Reiriz I, Górriz JL, Cobo Marcos M, Núñez J. Quantification and Treatment of Congestion in Heart Failure: A Clinical and Pathophysiological Overview.Nefrologia (Engl Ed). 2022;42:145–62. [DOI] [PubMed]
Sohn S, Jeon J, Lee JE, Park SH, Kang DO, Park EJ, et al. Phase angle in bioelectrical impedance analysis for assessing congestion in acute heart failure.PLoS One. 2025;20:e0317333. [DOI] [PubMed] [PMC]
Shirokov NE, Yaroslavskaya EI, Krinochkin DV, Kosterin MD, Musikhina NA. Diagnostic value of left atrial compliance in determining heart failure with preserved ejection fraction.Russ Open Med J. 2024;13:e0409. [DOI]
Obokata M, Reddy YNV, Pislaru SV, Melenovsky V, Borlaug BA. Evidence Supporting the Existence of a Distinct Obese Phenotype of Heart Failure With Preserved Ejection Fraction.Circulation. 2017;136:6–19. [DOI] [PubMed] [PMC]
Bogdanova TM, Gorbunova LA, Goryachev VS, Fedonnikov AS. Low LDL levels are associated with the absence of dyspnea in patients with chronic heart failure.Russ Open Med J. 2025;14:e0413. [DOI]
Rubanenko OA, Rubanenko AO, Duplyakov DV. Factors associated with mortality in patients with chronic heart failure during an 18-month follow-up period.Russ Open Med J. 2025;14:e0409. [DOI]
Parizad R, Hatwal J, Taban Sadeghi M, Brar A, Desai R, Batta A, et al. Clinical Advances in Heart Failure with Preserved Ejection Fraction: A Systematic Review of Therapeutic and Mechanistic Evidence.Vasc Health Risk Manag. 2026;22:578698. [DOI] [PubMed] [PMC]
Brar AS, Khanna T, Sohal A, Hatwal J, Sharma V, Singh C, et al. Metabolic dysfunction-associated steatotic liver disease and heart failure with preserved ejection fraction: A state-of-the-art review.World J Cardiol. 2026;18:111954. [DOI] [PubMed] [PMC]
Deng L, Tighiouart H, Oka T, Tuttle ML, Downey BC, Rowin EJ, et al. Association of Obesity with Kidney Function Outcomes in Heart Failure with Preserved Ejection Fraction.Kidney360. 2026;[Epub ahead of print]. [DOI] [PubMed]
Pandit A, Gupta M, Arabie DA, Milton P, Elbatreek M, Goodchild T, et al. Obesity and Heart Failure With Preserved Ejection Fraction: A Clinical Nexus for Exercise Intolerance.Obesity (Silver Spring). 2026;34:984–96. [DOI] [PubMed]
Sotomi Y, Hikoso S, Komukai S, Sato T, Oeun B, Kitamura T, et al. Phenotyping of acute decompensated heart failure with preserved ejection fraction.Heart. 2022;108:1553–61. [DOI] [PubMed]
Anastasiou V, Peteinidou E, Moysidis DV, Daios S, Gogos C, Liatsos AC, et al. Multiorgan Congestion Assessment by Venous Excess Ultrasound Score in Acute Heart Failure.J Am Soc Echocardiogr. 2024;37:923–33. [DOI] [PubMed]
Palazzuoli A, Ruocco G, Beltrami M, Nuti R, Cleland JG. Combined use of lung ultrasound, B-type natriuretic peptide, and echocardiography for outcome prediction in patients with acute HFrEF and HFpEF.Clin Res Cardiol. 2018;107:586–96. [DOI] [PubMed]
Sonaglioni A, Lonati C, Scime’ V, Nicolosi GL, Bruno A, Lombardo M, et al. Supra-Normal Ejection Fraction at Hospital Admission Stratifies Mortality Risk in HFpEF Patients Aged ≥ 70 Years.J Clin Med. 2025;14:426. [DOI] [PubMed] [PMC]