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  • Title: Phase angle as a severity indicator for liver diseases.
    Author: Pagano AP, Sicchieri JMF, Schiavoni IL, Barbeiro D, Manca CS, da Silva BR, Bezerra AE, Pinto LCM, Araújo RC, Teixeira AC, Chiarello PG.
    Journal: Nutrition; 2020 Feb; 70():110607. PubMed ID: 31743810.
    Abstract:
    OBJECTIVE: The aim of this study was to evaluate the applicability of phase angle (PhA) as a severity indicator of chronic liver diseases. METHODS: We examined the medical records of 54 patients-27 with hepatocellular carcinoma (HCC) and 27 with non-alcoholic fatty liver disease (NAFLD). The patients were ≥18 y of age. Clinical data, such as Child-Pugh and Barcelona Clinic Liver Cancer (HCC), aspartate aminotransferase-to-platelet ratio index (APRI) and fibrosis (FIB)-4 (NAFLD), nutritional parameters (body mass index [BMI], handgrip strength [HGS], and bioelectrical impedance [BIA] data) were collected. Nutritional Risk Index (NRI) was calculated. Analysis was performed using Mann-Whitney test and analysis of variance. Simple multiple linear regression for predictions (Child-Pugh in HCC, APRI and FIB-4 in NAFLD). Receiver operating characteristic curve was estimated to search a cutoff for PhA. For survival, we used the Kaplan-Meier estimator. To verify whether PhA affected patients' survival, we used the Mantel-Haenszel. RESULTS: The prevalence of cirrhosis was high in HCC (n = 25) and low in the NAFLD (n = 4). No patient was classified as undernourished based on BMI; however, NRI showed that 74.1% of patients with HCC had nutritional risk. Child-Pugh was positively correlated with the edema index (extracellular water/total body water [ECW/TBW]) and negatively correlated with PhA and HGS. Higher Child-Pugh and BCLC scores were associated with worse NRI. APRI and FIB-4 were positively correlated with weight and BMI. A significant difference between groups was found for the median values of R, ECW/TBW, PhA, HGS, and albumin. There was a trend toward lower survival in patients with HCC, according to the cutoff point of 5.1 degrees for PhA. CONCLUSION: PhA was shown to be an independent prognostic indicator for cirrhosis and may be related to survival in these patients.
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