Correspondence to editorial on “Human cytomegalovirus reactivation in cirrhosis patients with acute decompensation” Changze Hong, Jinjun Chen Clinical and Molecular Hepatology.2026; 32(3): e336. CrossRef
Background/Aims Prediction of short-term mortality in patients with acute-on-chronic liver failure (ACLF) admitted to the intensive care unit (ICU) may enhance effective management.
Methods To develop, explain, and validate a predictive machine learning (ML) model for short-term mortality in patients with ACLF with two or more organ failures (OFs). Utilizing a large ICU cohort with detailed clinical information, we identified ACLF patients with two or more OFs according to the EASL-CLIF and NACSELD definitions. ML model was developed for each definition to predict 30-day mortality. The Shapley value was estimated to explain the models. Validation and calibration of these models were performed.
Results Of 5,994 patients with cirrhosis admitted to ICU, 1,511 met NACSELD criteria, and 1,692 met EASL-CLIF grade II or higher criteria. The CatBoost ACLF (CBA) model had the greatest accuracy in the NACSELD cohort (area under curve [AUC] of 0.87), while the Random Forest ACLF (RFA) model performed best in the EASL-CLIF cohort (AUC of 0.83). Both models showed robust calibration. The models were explained by SHAP score analysis, yielding a rank list, and the top twelve predictors were selected. Both simplified models demonstrated similar performance (CBA model: AUC 0.89, RFA model: AUC 0.81) and significantly outperformed contemporary scoring systems, including CLIF-C ACLF and MELD 3.0. The models were validated in both internal and external cohorts. A simple-to-use online tool was created to predict mortality rates.
Conclusions We presented explainable, well-validated, and calibrated predictive models for ACLF patients with two or more OFs, which outperformed existing predictive scores.
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Unbiased clustering of acute-on-chronic liver failure patients using machine learning in a real-world ICU cohort Mengyi Zhang, Fanpu Ji, Jian Zu, Yingli He, Tao Chen, Yi Liu, Hirsh D. Trivedi, Ju Dong Yang, Vinay Sundaram, Yuan Wang, Xiaodan Sun, Zhujun Cao, Chun-Ying Wu, Yee Hui Yeo, Rajiv Jalan Nature Communications.2026;[Epub] CrossRef
Systematic evaluation of machine learning models for clinical risk prediction on real-world hospital datasets Qingwen Wu, Ziyou Qi, Qingwei Li, Cuiping Hao, Sujuan Tang iScience.2026; 29(5): 115654. CrossRef
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Harmonized ACLF prognostication with explainable machine learning models: Traversing from counts to composition: Editorial on “Predictive machine learning model in intensive care unit patients with acute-on-chronic liver failure and two or more organ fail Sagnik Biswas, Akash Roy Clinical and Molecular Hepatology.2026; 32(3): 1386. CrossRef
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Correspondence to editorial on “Predictive machine learning model in intensive care unit patients with acute-on-chronic liver failure and two or more organ failures” Mengyi Zhang, Yee Hui Yeo, Jian Zu, Jonel Trebicka, Fanpu Ji Clinical and Molecular Hepatology.2026; 32(3): e346. CrossRef
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Backgrounds/Aims Non-invasive models stratifying clinically significant portal hypertension (CSPH) are limited. Herein, we developed a new non-invasive model for predicting CSPH in patients with compensated cirrhosis and investigated whether carvedilol can prevent hepatic decompensation in patients with high-risk CSPH stratified using the new model.
Methods Non-invasive risk factors of CSPH were identified via systematic review and meta-analysis of studies involving patients with hepatic venous pressure gradient (HVPG). A new non-invasive model was validated for various performance aspects in three cohorts, i.e., a multicenter HVPG cohort, a follow-up cohort, and a carvediloltreating cohort.
Results In the meta-analysis with six studies (n=819), liver stiffness measurement and platelet count were identified as independent risk factors for CSPH and were used to develop the new “CSPH risk” model. In the HVPG cohort (n=151), the new model accurately predicted CSPH with cutoff values of 0 and –0.68 for ruling in and out CSPH, respectively. In the follow-up cohort (n=1,102), the cumulative incidences of decompensation events significantly differed using the cutoff values of <–0.68 (low-risk), –0.68 to 0 (medium-risk), and >0 (high-risk). In the carvediloltreated cohort, patients with high-risk CSPH treated with carvedilol (n=81) had lower rates of decompensation events than non-selective beta-blockers untreated patients with high-risk CSPH (n=613 before propensity score matching [PSM], n=162 after PSM).
Conclusions Treatment with carvedilol significantly reduces the risk of hepatic decompensation in patients with high-risk CSPH stratified by the new model.
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