EVALUATION OF LIVER FIBROSIS IN INDIVIDUALS WITH METABOLIC SYNDROME USING NON-INVASIVE TESTS.

Introduction. Metabolic syndrome (MS) patients are at increased risk for severe liver fibrosis and nonalcoholic fatty liver disease. However, there aren't any recommendations until this moment for screening MS patients. This study aimed to evaluate the diagnostic precision of non-invasive tests in identifying advanced liver fibrosis (F3) and cirrhosis (F4) in MS patients using vibration-controlled transient elastography (VCTE) as a standard quantification method. Materials and Methods. Between September 2022 to March 2023, we prospectively enrolled MS patients at the Gastroenterology and Hepatology Institute Iasi who had undergone evaluation using noninvasive tests like the aspartate aminotransferase to platelet ratio index (APRI) score, fibrosis-4 (FIB-4) index, and NAFLD fibrosis score (NFS). When compared to liver stiffness measures (LSM), we assessed the specificity, sensitivity, negative predictive value (NPV), and positive predictive value (PPV) for each of these indicators in the identification of at least advanced liver fibrosis (=F3). Results. Of the 116 MS patients included in this study, who had a mean BMI of 27.82±4.62 kg/m2 and at least three metabolic conditions, 69 individuals (59.5%) were females. Using a cut-off of 9.7 kPa, 35 (30.2%) patients had at least advanced fibrosis (=F3) according to LSM measurements. VCTE examinations present a higher correlation with the FIB-4 index (r=0.566), NFS (r=0.585), and APRI score (r=0.624) (p< 0.001). The NPV for the FIB-4 index was the highest (90.38%), followed by the NPV for the NFS score (87.84%). The main result of our research showed that all the biomarkers had reasonably high NPV (>85%) and accuracy (>83%) for predicting advanced liver fibrosis, with moderate specificity (80%) and PPV (75%). Conclusion. To prevent progressive fibrosis in MS patients, the FIB-4 index and NFS score seem to be the most suitable surrogate VCTE biomarkers. It may be necessary to take action and further evaluation of liver fibrosis in a tertiary care center for populations at risk after these non-invasive and affordable screening tests are used in primary care settings. [ABSTRACT FROM AUTHOR]