Diagnostic value of fibronectin discriminant score for predicting liver fibrosis stages in chronic hepatitis C virus patients
Journal Title: Annals of Hepatology - Year 2013, Vol 12, Issue 1
Abstract
[b]Background[/b]. Several noninvasive predictive models were developed to substitute liver biopsy for fibrosis assessment. [b]Aim[/b]. To evaluate the diagnostic value of fibronectin which reflect extracellular matrix metabolism and standard liver functions tests which reflect alterations in hepatic functions. [b]Material and methods[/b]. Chronic hepatitis C (CHC) patients (n = 145) were evaluated using ROC curves and stepwise multivariate discriminant analysis (MDA) and was validated in 180 additional patients. Liver biochemical profile including transaminases, bilirubin, alkaline phosphatase, albumin, complete blood count were estimated. Fibronectin concentration was determined using monoclonal antibody and ELISA. [b]Results[/b]. A novel index named fibronectin discriminant score (FDS) based on fibronectin, APRI and albumin was developed. FDS produced areas under ROC curves (AUC) of 0.91 for significant fibrosis and 0.81 for advanced fibrosis. The FDS correctly classified 79% of the significant liver fibrosis patients (F2-F4) with 87% sensitivity and 75% specificity. The relative risk [odds ratio (OR)] of having significant liver fibrosis using the cut-off values determined by ROC curve analyses were 6.1 for fibronectin, 4.9 for APRI, and 4.2 for albumin. FDS predicted liver fibrosis with an OR of 16.8 for significant fibrosis and 8.6 for advanced fibrosis. The FDS had similar AUC and OR in the validation group to the estimation group without statistically significant difference.[b]Conclusion[/b]. FDS predicted liver fibrosis with high degree of accuracy, potentially decreasing the number of liver biopsy required.
Authors and Affiliations
Abdelfattah Attallah, Sanaa Abdallah, Ahmed Attallah, Mohamed Omran, Khaled Farid, Wesam Nasif, Gamal Shiha, Abdel-Aziz Abdel-Aziz, Nancy Rasafy, Yehia Shaker
Keywords
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