Biochemical non-invasive assessment of liver fibrosis cannot replace biopsy in HIV-HCV coinfected patients

Autores: Kliemann Dimas Alexandre, Wolff Fernando H, Tovo Cristiane V, Alencastro Paulo R, Ikeda Maria LR, Brandão Ajácio BM, Barcellos Nêmora, Fuchs Sandra C

Resumen

Background and rationale: The liver biopsy has been considered the gold standard for the diagnosis and quantification of fibrosis. However, this method presents limitations. In addition, the non-invasive evaluation of liver fibrosis is a challenge. The aim of this study was to validate the fibrosis cirrhosis index (FCI) index in a cohort of human immunodeficiency virus (HIV)/hepatitis C virus (HCV) coinfected patients, and compare to AST/ALT ratio (AAR), AST to platelet ratio index (APRI) and FIB-4 scores, as a tool for the assessment of liver fibrosis in coinfected patients. Material and methods: Retrospective cross sectional study including 92 HIV-HCV coinfected patients evaluated in two reference centers for HIV treatment in the Public Health System in Southern Brazil. Patients who underwent liver biopsy for any indication and had concomitant laboratory data in the 3 months prior to liver biopsy, to allow the calculation of studied noninvasive markers (AAR, APRI, FIB-4 and FCI) were included. Results: APRI < 0.5 presents the higher specificity to detect no or minimal fibrosis, whereas APRI > 1.5 presents the best negative predictive value and FCI > 1.25 the best specificity to detect significant fibrosis. The values of noninvasive markers for each Metavir fibrosis stage showed statistically significant differences only for APRI. In conclusion, until better noninvasive markers for liver fibrosis are developed and validated for HIV-HCV coinfected patients, noninvasive serum markers should be used carefully in this population.

Palabras clave: Coinfection hepatitis C HIV infection.

2016-06-23   |   116 visitas   |   Evalua este artículo 0 valoraciones

Vol. 15 Núm.1. Enero-Febrero 2016 Pags. 27-32 Ann Hepatol 2016; 15(1)