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Multi-algorithm consensus classification identifies three distinct acute liver failure subtypes with differential

Ying Yang1, Wei Yang2, Bo Tang3

  • 1Department of Gastroenterology, Shengjing Hospital of China Medical University, 36 San-hao Street, Shenyang, Liaoning 110004, China.

Journal of Advanced Research
|June 12, 2025
PubMed
Summary
This summary is machine-generated.

Acute liver failure (ALF) is heterogeneous. A new classification identifies three distinct phenotypes with unique survival and treatment responses, enabling personalized medicine.

Keywords:
Acute liver failure phenotypesCritical careMulti-algorithm consensus clusteringPrecision medicineTreatment response heterogeneity

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Area of Science:

  • Critical Care Medicine
  • Hepatology
  • Computational Biology

Background:

  • Acute liver failure (ALF) presents significant mortality challenges.
  • Current prognostic models lack the granularity to address ALF's heterogeneity.
  • Personalized therapeutic strategies require refined patient stratification.

Purpose of the Study:

  • To develop and validate a novel classification system for acute liver failure (ALF).
  • To identify distinct ALF patient phenotypes based on clinical data.
  • To investigate prognostic trajectories and treatment response heterogeneity across identified ALF subtypes.

Main Methods:

  • Analysis of 2,691 adult ALF patients from six international critical care databases.
  • Development of a Multi-algorithm Consensus-based Acute Liver Failure Classification (MCALFC) using ten clustering algorithms.
  • Validation of subtypes, survival analysis, SHAP analysis for feature importance, and treatment response evaluation.

Main Results:

  • Identification of three robust ALF phenotypes: 'critical hemodynamic collapse', 'cardiovascular dysfunction', and 'hyperacute hepatic necrosis'.
  • Distinct survival trajectories observed across subtypes, with significant differences in 28-day mortality.
  • Heterogeneous treatment responses noted for epinephrine, dexmedetomidine, and renal replacement therapy across the three subtypes.

Conclusions:

  • Acute liver failure (ALF) can be classified into three distinct phenotypes with unique pathophysiological characteristics.
  • These phenotypes exhibit different prognostic outcomes and variable responses to treatments.
  • The MCALFC approach offers a framework for precision medicine in ALF, moving beyond a one-size-fits-all treatment model.