Highlights
- •Alterations in hypercoagulability and fibrinolysis are not associated with ACLF development in individuals with AD.
- •CRP, CLIF-C AD score, and Child-Pugh stage were independent predictors of ACLF.
- •We developed and validated the Padua predictive score, which accurately identified individuals with AD at risk of ACLF.
- •CRP and progression to ACLF, but not coagulopathy, were associated with development of bleeding unrelated to portal hypertension.
- •CRP and antifibrinolytic factor PAI-1 >50 ng/ml were associated with development of venous thrombosis.
Background & Aims
Hypercoagulability and hypofibrinolysis in acutely decompensated cirrhosis (AD) may
be implicated in disease progression and haemostatic complications. We conducted a
prospective study to: (1) characterise haemostatic alterations in AD; (2) evaluate
whether such alterations can predict acute-on-chronic liver failure (ACLF) and bleeding/thrombosis.
Methods
Hospitalised individuals with AD were prospectively recruited and underwent an extensive
haemostatic profiling including coagulation factors, thrombomodulin-modified thrombin
generation assay with evaluation of endogenous thrombin potential (ETP; marker for
plasmatic hypercoagulability), fibrinolytic factors, and plasmin–antiplasmin complex
(fibrinolysis activation marker). Inflammation severity was assessed by C-reactive
protein (CRP). In part 1 of the study, we compared haemostasis in AD vs. controls (stable decompensated and compensated cirrhosis). In part 2 of the study,
we prospectively followed individuals with AD for 1 year and investigated predictors
of ACLF and bleeding/thrombosis.
Results
A total of 169 individuals with AD were recruited (median model for end-stage liver
disease score 20; CLIF-C AD 54). Compared with controls, AD was associated with more
pronounced hypercoagulability (ETP: 871 vs. 750 vs. 605 nmol/L per min; p <0.0001), without differences in fibrinolysis activation. During follow-up, 55 individuals
developed ACLF. CLIF-C AD, CRP, and Child-Pugh were independently associated with
ACLF. A predictive model combining these variables (Padua model) accurately identified
individuals at higher risk of ACLF (AUROC 0.857; 95% CI 0.798–0.915; sensitivity 74.5%,
specificity 83.3%). Notably, CRP and progression to ACLF, but not baseline coagulopathy,
were associated with bleeding (n = 11); CRP and antifibrinolytic factor PAI-1 >50 ng/ml
were associated with thrombosis (n = 14). The prognostic value of the Padua model
was validated in an independent, bicentric European cohort (N = 301).
Conclusions
Inflammation severity, and not coagulopathy, is the most important predictor of ACLF
and bleeding in AD. The Padua model can be used to identify individuals with AD at
risk of ACLF.
Impact and implications
A better understanding of haemostasis in individuals with acutely decompensated cirrhosis
may help to identify those at higher risk of progression and complications. In this
prospective study, we found no significant association between alterations of haemostasis
and cirrhosis progression, indicating that the assessment of haemostatic alterations
is not useful to identify those at risk. However, we found that C-reactive protein
(a simple blood test that reflects severity of inflammation) and severity of chronic
liver disease itself (as assessed by specific scores) were associated with cirrhosis
progression and development of bleeding complications. Therefore, we developed a simple
predictive model – based on C-reactive protein and liver disease scores – that, if
validated by independent studies, could be used in clinical practice to assist physicians
in identifying individuals with decompensated cirrhosis at higher risk of disease
progression and death (i.e. in whom to consider an expedited evaluation for liver transplantation).
Graphical abstract

Graphical Abstract
Keywords
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Article info
Publication history
Published online: September 20, 2022
Accepted:
September 6,
2022
Received in revised form:
September 2,
2022
Received:
May 30,
2022
Footnotes
Author names in bold designate shared co-first authorship
Identification
Copyright
© 2022 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.