Abstract

BackgroundThe liver biopsy is an essential element of evaluating progression of liver disease in children with Progressive Familial Intrahepatic Cholestasis (PFIC) and Allagille Syndrome (AGS). Several noninvasive techniques, including radiological imaging and blood biomarkers assay, can be used to evaluate liver stiffness.ObjectivesTo identify whether liver Transient elastography (FibroScan) and AST/PLT Ratio Index (APRI) could be reliable tools to assess the degree of fibrosis prior to partial biliary diversion (PBD).MethodsA prospective cohort in which all patients with PFIC and AGS who underwent PBD from July 2019 to July 2021 were included. Preoperative liver functions, pelvic-abdominal ultrasonography and FibroScan assessments were performed while intraoperative liver biopsy was obtained.ResultsEight patients with chronic cholestatic liver disease who were candidates for PBD due to intractable pruritus were enrolled, including PFIC (n = 6; 75%), and AGS (n = 2; 25%). The liver FibroScan results were similar to the liver biopsy histopathological assessment in 87.5% of cases. APRI ranged from 0.1 to 3.2 (median = 1.2). In four cases (50%), APRI was consistent with histological evaluation of liver samples. The FibroScan results were in concordance with APRI results in three patients (37.5%).ConclusionThe current cohort demonstrated that fibroScan was consistent with histopathology in 87.5% of patients, highlighting its value in determining the degree of liver fibrosis prior to surgery, whereas the APRI was only consistent with histopathology in half of cases.

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