{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T12:26:02Z","timestamp":1787574362412,"version":"build-2736575974"},"reference-count":69,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T00:00:00Z","timestamp":1787443200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Mol. Sci.","IJMS"],"abstract":"<jats:p>Heart failure (HF) is a systemic syndrome in which prognosis depends on cardiac dysfunction, congestion, cardiorenal and cardiohepatic interactions, inflammation, and metabolic dysregulation. The liver is exposed to elevated systemic venous pressure and reduced forward flow, and contributes to albumin and coagulation factor synthesis, bile acid metabolism, iron homeostasis, and the acute-phase response. Cardiohepatic injury involves hemodynamic stress, sinusoidal endothelial dysfunction, oxidative stress, inflammatory signaling, fibrogenesis, and altered metabolic regulation. Congestive hepatopathy is associated with right-sided HF, tricuspid regurgitation (TR), pulmonary hypertension, and elevated central venous pressure, whereas hypoxic hepatitis develops during low-output states, shock, or acute circulatory deterioration. These mechanisms may coexist, producing congestive\/cholestatic, hypoperfusive\/ischemic and mixed\/systemic reserve profiles. Composite liver-related scores, including Model for End-Stage Liver Disease (MELD), MELD excluding International Normalized Ratio (MELD-XI), MELD with sodium (MELD-Na), MELD-Albumin and albumin\u2013bilirubin (ALBI) score, may reflect congestion, hepatorenal dysfunction, nutritional status and reduced systemic reserve. This review summarizes hemodynamic and molecular mechanisms of cardiohepatic injury, liver-related biomarkers and composite scores, with emphases on advanced HF, left ventricular assist device (LVAD) therapy and heart transplantation. Liver-related abnormalities remain underrecognized in HF. Their serial interpretation may support risk stratification, but composite scores should complement rather than replace comprehensive clinical assessment.<\/jats:p>","DOI":"10.3390\/ijms27177545","type":"journal-article","created":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T11:47:19Z","timestamp":1787572039000},"page":"7545","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["The Liver as a Biomarker Organ in Heart Failure: Molecular Mechanisms, Hepatic Scores and Systemic Risk Stratification"],"prefix":"10.3390","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9736-422X","authenticated-orcid":false,"given":"Wioletta","family":"Szczurek-Wasilewicz","sequence":"first","affiliation":[{"name":"Department of Pharmacology, Faculty of Medicine, University of Opole, 45-052 Opole, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-4029-5982","authenticated-orcid":false,"given":"Antoni","family":"Borowiec","sequence":"additional","affiliation":[{"name":"Students\u2019 Scientific Society, Department of Pharmacology, Faculty of Medicine, University of Opole, 45-052 Opole, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-8654-1229","authenticated-orcid":false,"given":"Iga","family":"Waluszewska","sequence":"additional","affiliation":[{"name":"Students\u2019 Scientific Society, Department of Pharmacology, Faculty of Medicine, University of Opole, 45-052 Opole, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bo\u017cena","family":"Szygu\u0142a-Jurkiewicz","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Opole, 45-052 Opole, Poland"},{"name":"3rd Department of Cardiology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"821","DOI":"10.1002\/ejhf.872","article-title":"Organ dysfunction, injury and failure in acute heart failure: From pathophysiology to diagnosis and management. 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