Observational pilot study on non-invasive scores versus liver biopsy in the assessment of hepatic fibrosis: reflections in the context of current literature
Keywords:
„biomarkers”, „non-invasive scores”, „liver fibrosis”, „liver biopsy”Abstract
Serum biomarkers represent a key pillar in the non-invasive assessment of liver fibrosis. Although biopsy remains the gold standard, the APRI and FIB-4 scores have emerged as simple and accessible alternatives, particularly in healthcare systems with limited resources. The aim of the study was to evaluate the utility of the non-invasive diagnostic scores APRI and FIB-4 in identifying liver fibrosis, in comparison with histological findings from liver biopsy. The cross-sectional observational study included all patients with chronic liver disease who were hospitalized at the Republican Clinical Hospital (Chișinău) between 2019 and 2024 and underwent liver biopsy. APRI and FIB-4 scores were calculated based on clinical and biochemical data. Liver fibrosis was confirmed histologically. Results are expressed as mean ± standard error of the mean (M±SEM). The study sample included 22 patients, of whom 40.9% were male and 59.1% female, with a mean age of 44.5±2.7 years. The APRI score identified a high risk of liver fibrosis in 40.9% of patients (n=9), while the FIB-4 score indicated a high risk in 9.1% (n=2) and an intermediate risk in 22.7% (n=5). Liver fibrosis was histologically confirmed in 45.5% of patients (n=10). Discrepancies between non-invasive scores and biopsy findings may be attributed to their variable sensitivity and the characteristics of the study cohort. APRI and FIB-4 are useful tools for the initial evaluation of liver fibrosis. While APRI showed better alignment in excluding fibrosis, FIB-4 demonstrated higher accuracy in identifying advanced fibrosis and estimating intermediate risk.
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