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  • Title: Hepatic venous pressure gradient as a predictor of fibrosis in chronic liver disease because of hepatitis B virus.
    Author: Kumar M, Kumar A, Hissar S, Jain P, Rastogi A, Kumar D, Sakhuja P, Sarin SK.
    Journal: Liver Int; 2008 May; 28(5):690-8. PubMed ID: 18433395.
    Abstract:
    BACKGROUND: Liver biopsy has been considered to be a gold standard for assessing hepatic fibrosis. Sample variability, interobserver variability and step-wise evaluation limit its use. Hepatic venous pressure gradient (HVPG) correlates with hepatic fibrosis in chronic liver disease (CLD) because of hepatitis C. AIM: To evaluate the utility of HVPG for assessing hepatic fibrosis in patients with hepatitis B virus (HBV)-related CLD. PATIENTS AND METHODS: Sixty-one patients with HBV-related CLD who underwent both liver biopsy and hepatic haemodynamic studies were studied. RESULTS: Forty-nine (80.3%) patients had clinically significant portal hypertension (PHT) (HVPG>or=10 mmHg), 39 (63.9%) severe PHT (i.e. HVPG>or=12 mmHg), six (9.8%) HVPG<or=5 mmHg and another six (9.8%) had preclinical PHT (i.e. HVPG>5 but <10 mmHg). A positive correlation between HVPG and fibrosis score was found (r=0.436, P<0.001). In patients with HVPG<10 or <12 mmHg there was a significant correlation with fibrosis score (r=0.603, P=0.029 and r=0.887, P<0.001 respectively). A positive correlation also existed in patients with HVPG>or=10 mmHg and in patients with HVPG>or=12 mmHg (r=0.512, P<or=0.001 and r=0.543, P<0.001 respectively). Receiver operating characteristic curve of HVPG for the prediction of advanced fibrosis (stage>or=3) had an area under curve of 0.906. HVPG value above 13.0 mmHg had a sensitivity of 79% and a specificity of 89% for predicting advanced fibrosis on histology. CONCLUSIONS: HVPG correlates well with the degree of histological fibrosis in patients with HBV-related CLD.
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