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Background  Systemic inflammatory response is closely related to the development and prognosis of liver failure. This study aimed to establish a new model combing the inflammatory markers including neutrophil/lymphocyte ratio (NLR) and red blood cell distribution width (RDW) with several hematological testing indicators to assess the prognosis of patients with hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF).    Methods  A derivation cohort with 421 patients and a validation cohort with 156 patients were recruited from three hospitals. Retrospectively collecting their clinical data and laboratory testing indicators. Medcalc-15.10 software was employed for data analyses.    Results  Multivariate analysis indicated that RDW, NLR, INR, TBIL and Cr were risk factors for 90-day mortality in patients with HBV-ACLF. The risk assessment model is COX RNTIC  = 0.053 ×  R DW + 0.027 ×  N LR + 0.003 ×  T BIL+ 0.317 ×  I NR + 0.003 ×  C r (RNTIC) with a cut-off value of 3.08 (sensitivity: 77.89%, specificity: 86.04%). The area under the receiver operating characteristics curve (AUC) of the RNTIC was 0.873 [95% CI(0.837–0.903)], better than the predictive value of MELD score [0.732, 95% CI(0.687–0.774)], MELD-Na [0.714, 95% CI(0.668–0.757)], CTP[0.703, 95% CI(0.657–0.747)]. In the validation cohort, RNTIC also performed a better prediction value than MELD score, MELD-Na and CTP with the AUC of [0.845, 95% CI(0.778–0.898)], [0.768, 95% CI (0.694–0.832)], [0.759, 95% CI(0.684–0.824)] and [0.718, 95% CI(0.641–0.787)] respectively.    Conclusions  The inflammatory markers RDW and NLR could be used as independent predictors of 90-day mortality in patients with HBV-ACLF. Compared with MELD score, MELD-Na and CTP, RNTIC had a more powerful predictive value for prognosis of patients with HBV-ACLF.

bmc gastroenterology

A novel predictive model based on inflammatory markers to assess the prognosis of patients with HBV-related acute-on-chronic liver failure: a retrospective cohort study