Journal
ALIMENTARY PHARMACOLOGY & THERAPEUTICS
Volume 27, Issue 12, Pages 1261-1268Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2036.2008.03701.x
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Background Hepatic venous pressure gradient (HVPG) is a prognostic marker in patients with cirrhosis. Transient elastography measures liver stiffness (LS). Aim To assess the correlation between LS and HVPG and to investigate the performance of transient elastography for the diagnosis of significant portal hypertension (PHT). Methods Liver stiffness was measured by Fibroscan in 150 consecutive patients who underwent a liver biopsy with haemodynamic measurements. Usual clinical and biological data were collected. Significant PHT was defined as a HVPG >= 10 mmHg. Results Hepatic venous pressure gradient was found to be >= 10 mmHg in 76 patients. Cirrhosis was diagnosed in 89 patients. HVPG was found to be correlated with: LS (rho = 0.858; P < 0.001) and inversely correlated with prothrombin index (rho = -0.718; P < 0.001). Regarding significant PHT, AUROC for LS and prothrombin index were 0.945 [0.904-0.987] and 0.892 [0.837-0.947] respectively. The cut-off value of 21 kPa accurately predicted significant PHT in 92% of the 144 patients for whom LS was successful. Conclusion Liver stiffness measurement is correlated with HVPG and transient elastography identifies patients with significant PHT.
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