Journal
TRANSFUSION AND APHERESIS SCIENCE
Volume 57, Issue 4, Pages 537-543Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.transci.2018.05.030
Keywords
Acute liver failure; Acute-on-chronic liver failure; CLIP consortium ACLF score; Plasma exchange
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Funding
- Chang Gang Medical Research Project [CMRPG3E2001]
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Patients with acute liver failure (ALF) and acute-on-chronic liver failure (ACLF) have a high risk of mortality. Few studies have reported prognostic factors for patients receiving plasma exchange (PE) for liver support. We conducted a retrospective analysis using data of 55 patients with severe ACLF (n = 45) and ALF (n = 10) who received standard-volume PE (1-1.5 plasma volume) in the ICU. Hepatitis B virus infection accounts for the majority of ACLF (87%) and ALF (50%) patients. PE significantly improved the levels of total bilirubin, pro thrombin time and liver enzymes (P < 0.05). Thirteen ACLF patients (29%) and one ALF patient (10%) underwent liver transplantation. Two ALF patients (20%) recovered spontaneously without transplantation. The overall in-hospital survival rates for ACLF and ALF patients were 24% and 30%, and the transplant-free survival rates were 0% and 20%, respectively. For the 14 transplanted patients, the one-year survival rate was 86%. Multivariate analysis showed that pre-PE hemoglobin (P = 0.008), post-PE hemoglobin (P = 0.039), and post-PE CLIF-C ACLF scores (P = 0.061) were independent predictors of survival in ACLF. The post-PE CLIF-C ACLF scores >= 59 were a discriminator predicting the in-hospital mortality (area under the curve = 0.719, P = 0.030). Cumulative survival rates differed significantly between patients with CLIF-C ACLF scores <= 58 and those with CLIP-C ACLF scores >= 59 after PE (P < 0.05). The findings suggest that PE is mainly a bridge for liver transplantation and spontaneous recovery is exceptional even in patients treated with PE. A higher improvement in the post-PE CLIF-C ACLF score is associated with a superior in-hospital survival rate.
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