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Long-term outcome of hepatitis B virus-related glomerulonephritis after therapy with interferon alfa
H S Conjeevaram1, J H Hoofnagle, H A Austin
1Liver Diseases Section, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA.
Background & Aims:
Glomerulonephritis is an uncommon complication of chronic hepatitis B virus (HBV) infection in adults. A high percentage of patients seem to have short-term response to interferon therapy with improvement of proteinuria. The aim of this study was to assess the long-term response of patients with HBV-related glomerulonephritis to interferon alfa therapy.
Methods:
All patients with chronic hepatitis B and glomerulonephritis who were treated with interferon alfa at the National Institutes of Health between 1985 and 1993 were assessed.
Results:
Of the 15 patients treated, 8 (53%) had a long-term serological response with sustained loss of serum hepatitis B e antigen and HBV DNA. After 1-7 years of follow-up, all 8 responders have normal serum aminotransferase levels and 5 are hepatitis B surface antigen negative. Seven of the responders also showed a gradual but marked improvement in proteinuria. In contrast, the 7 nonresponders continued to have evidence of active renal disease and 1 required long-term dialysis therapy. All 8 responders had membranous glomerulonephritis, whereas 4 of 7 nonresponders had membranoproliferative glomerulonephritis.
Conclusions:
Interferon alfa therapy resulted in long-term remission in liver disease in 8 of 15 patients with chronic hepatitis B and glomerulonephritis. This response was accompanied by significant improvement in markers of renal disease in the majority of patients.
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