Abstract
Background
Dynamic assessment of critically ill patients with cirrhosis (CICs) is required for accurate prognostication.
Objective
Development of a dynamic model for prediction of mortality and decision on futility of care in CICs.
Design and setting
In a prospective cohort study, we developed the PIRO-CIC model (predisposition, injury, response, organ failure for critically ill cirrhotics)] in a derivative cohort (n = 360) and validated it (n = 240) for patients admitted to the Liver ICU.
Patients
Decompensated cirrhosis admitted to ICU. The model was developed using Cox-regression analysis, and futility was performed by decision-curve analysis.
Results
CICs aged 48 ± 11.5 years, 87% males, majority being alcoholics, were enrolled, of which 73.5% were alive at one month. Factors significant for P component were INR [hazard ratio 1.12, 95% confidence interval 1.07–1.18] and CystatinC [2.25, 1.70–2.97]; for I component were sepsis [4.69, 1.90–11.57], arterial lactate[1.40, 1.02–1.93] and alcohol as etiology [2.78, 1.85–4.18]; for R component-systemic inflammatory response syndrome [1.97, 1.14–3.42] and urine neutrophil-gelatinase-associated lipocalin [HR 2.37, 1.59–3.53]; for O component-low PaO2/FiO2 ratio and need of mechanical ventilation [7.41, 4.63–11.86]. The PIRO-CIC model predicted one-month mortality with a C-index of 0.83 in the derivation and 0.80 in the validation cohorts. It predicted futility of care better than other prognostic scores. The immediate risk of mortality increased by 39% with each unit increase in PIRO-CIC score.
Limitations
Not applicable for acute-on-chronic liver failure and patients requiring emergency liver transplant.
Conclusions
Assessment and stratification of CICs with the dynamic PIRO-CIC model could determine one-month mortality and futility in the first week. Targeted and aggressive management of coagulation, kidneys, sepsis, and severe systemic inflammation may improve outcomes of CICs.
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Availability of data and material
On request.
Code availability
NA.
Abbreviations
- ICU:
-
ICU
- MELD:
-
Model for end-stage liver disease
- SOFA:
-
Sequential organ failure assessment
- AARC:
-
Asian pacific association for the study of liver disease acute on chronic liver failure research consortium
- INR:
-
International normalized ratio
- CICs:
-
Critically ill patients with cirrhosis
- PIRO:
-
Predisposition, injury, response, and organ failure
- AKI:
-
Acute kidney injury; uNGAL, urine neutrophil gelatinase-associated lipocalin
- CysC:
-
Cystatin
- CKD:
-
Chronic kidney disease
- CAD:
-
Coronary artery disease
- KIDGO:
-
Kidney disease improving global outcome criteria
- SIRS:
-
Systemic inflammatory response syndrome (SIRS)
- ROC:
-
Receiver operating curve
- AUROC:
-
Area under receiver operating characteristic curve
- DCA:
-
Decision curve analysis
- HR:
-
Hazard ratio
- C-index:
-
Concordance index
- CI:
-
Confidence interval
- TLC:
-
Total leukocyte count
- CTP:
-
Child-Turcotte Pugh
- MDRD:
-
Modification of diet in renal disease
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RM: made the study concept and design; acquisition of data done by RM, HVT, statistical analysis done by SSP; drafting of manuscript done by RM and SSP; Critical revision of manuscript done for important intellectual content done by SKS, administrative and technical support by SKS. All authors provided final approval of the version submitted for publication.
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Rakhi Maiwall, Samba Siva Rao Pasupuleti, Harsh Vardhan Tevethia,Shiv Kumar Sarin declares that they have no conflict of interest..
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Maiwall, R., Pasupuleti, S.S.R., Tevethia, H.V. et al. PIRO-CIC model can predict mortality and futility of care in critically ill cirrhosis patients in the intensive care unit. Hepatol Int 17, 476–487 (2023). https://doi.org/10.1007/s12072-022-10426-4
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DOI: https://doi.org/10.1007/s12072-022-10426-4