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A Multicenter Study of the Usefulness of Liver Biopsy in Hepatitis C

The role of liver biopsy in the assessment of chronic hepatitis C is generally accepted, yet there is no prospective data available to quantify its contribution. There is some evidence that taken together, the results of several other, less invasive laboratory tests might be utilized a surrogate for liver biopsy.

A previous single center pilot study suggested that the clinician could predict the amount of fibrosis and to a lesser extent, inflammation with moderate accuracy.

The 2002 National Institute of Health Hepatitis C Consensus Conference recommended further study of the role of liver biopsy.

The objective of the current study was to compare a prediction of biopsy findings by expert clinicians using usually available clinical and laboratory data to actual biopsy results in order to determine whether biopsy is required routinely.

This was a prospective observational study conducted at seven university centers in which the accuracy of clinician's predictions of the degree of inflammation and fibrosis were compared with the actual liver biopsy using an adaptation of a standard histological scoring system.

We studied 81 adults with previously untreated chronic hepatitis C, raised serum transaminases and positive HCV-RNA in serum.

Clinicians predicted the inflammatory grade in 44 of 80 cases (55%) and the fibrosis stage in 46 of 81 cases (57%). Nine of 17 cirrhotic cases were predicted (sensitivity 53%, specificity 56%).

No unexpected additional diagnoses were made on the biopsies.

Thus despite knowledge of the clinical and laboratory investigations of patients with hepatitis C, clinicians are unable to accurately predict the hepatic inflammatory grade and fibrotic stage.

The authors conclude, “Liver biopsy is an essential investigation to accurately evaluate the grade and stage of liver disease patients with hepatitis C.”

V G Bain and others. A multicentre study of the usefulness of liver biopsy in hepatitis C. Journal of Viral Hepatitis 11(4): 375. July 2004.

Courtesy of hivandhepatitis


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