Performance of transient elastography and serum fibrosis biomarkers for non-invasive evaluation of recurrent fibrosis after liver transplantation: A meta-analysis

PLoS One. 2017 Sep 27;12(9):e0185192. doi: 10.1371/journal.pone.0185192. eCollection 2017.

Abstract

Recurrent fibrosis after liver transplantation (LT) impacts on long-term graft and patient survival. We performed a meta-analysis to compare the accuracy of non-invasive methods to diagnose significant recurrent fibrosis (stage F2-F4) following LT. Studies comparing serum fibrosis biomarkers, namely AST-to-platelet ratio index (APRI), fibrosis score 4 (FIB-4), or transient elastography (TE) with liver biopsy in LT recipients were systematically identified through electronic databases. In the meta-analysis, we calculated the weighted pooled odds ratio and used a fixed effect model, as there was no significant heterogeneity between studies. Eight studies were included for APRI, four for FIB-4, and twelve for TE. The mean prevalence of significant liver fibrosis was 37.4%. The summary odds ratio was significantly higher for TE (21.17, 95% CI confidence interval 14.10-31.77, p = 1X10-30) as compared to APRI (9.02, 95% CI 5.79-14.07; p = 1X10-30) and FIB-4 (7.08, 95% CI 4.00-12.55; p = 1.93X10-11). In conclusion, TE performs best to diagnose recurrent fibrosis in LT recipients. APRI and FIB-4 can be used as an estimate of significant fibrosis at centres where TE is not available. Longitudinal assessment of fibrosis by means of these non-invasive tests may reduce the need for liver biopsy.

Publication types

  • Meta-Analysis

MeSH terms

  • Biomarkers / blood
  • Elasticity Imaging Techniques / methods*
  • Humans
  • Liver Cirrhosis / blood*
  • Liver Cirrhosis / diagnostic imaging*
  • Liver Cirrhosis / etiology
  • Liver Transplantation / adverse effects*
  • Recurrence

Substances

  • Biomarkers

Grants and funding

GS holds a Chercheur-Boursier career award from the Fonds de recherche du Québec –Santé (FRQ-S). MB is the recipient of a Canadian Institutes of Health Research (CIHR) Fellowship for Health Professionals.