Journal of Gastroenterology

, Volume 31, Issue 5, pp 696–701

Spontaneous hepatitis B surface antigen clearance in a long-term follow-up study of patients with chronic type B hepatitis. Lack of correlation with hepatitis C and D virus superinfection

Authors

  • Luiz Caetano Da Silva
    • Department of Gastroenterology (Hepatology Branch)University of São Paulo School of Medicine
    • Institute of Tropical Medicine (LIM-47 and 52)University of São Paulo School of Medicine
  • Carmen Lúcia De Assis Madruga
    • Department of Gastroenterology (Hepatology Branch)University of São Paulo School of Medicine
    • Institute of Tropical Medicine (LIM-47 and 52)University of São Paulo School of Medicine
  • Flair José Carrilho
    • Department of Gastroenterology (Hepatology Branch)University of São Paulo School of Medicine
    • Institute of Tropical Medicine (LIM-47 and 52)University of São Paulo School of Medicine
  • João Renato Rebello Pinho
    • Department of Pro-Sangue FoundationUniversity of São Paulo School of Medicine
    • Institute of Tropical Medicine (LIM-47 and 52)University of São Paulo School of Medicine
  • Amadeo Saéz-Alquezar
    • Department of Pro-Sangue FoundationUniversity of São Paulo School of Medicine
  • Carlos Santos
    • Department of Pro-Sangue FoundationUniversity of São Paulo School of Medicine
  • Leda Bassit
    • Department of Pro-Sangue FoundationUniversity of São Paulo School of Medicine
  • Claudia Barreto
    • Department of Pro-Sangue FoundationUniversity of São Paulo School of Medicine
  • Luís Edmundo Pinto Da Fonseca
    • Department of Gastroenterology (Hepatology Branch)University of São Paulo School of Medicine
    • Institute of Tropical Medicine (LIM-47 and 52)University of São Paulo School of Medicine
  • Venâncio Avancini Ferreira Alves
    • Department of PathologyUniversity of São Paulo School of Medicine
  • Regina Leitão
    • Department of PathologyUniversity of São Paulo School of Medicine
  • Regina Vianna
    • Department of PathologyUniversity of São Paulo School of Medicine
  • Rita Antonelli Cardoso
    • Institute of Tropical Medicine (LIM-47 and 52)University of São Paulo School of Medicine
  • Alex Vianey Callado França
    • Department of Gastroenterology (Hepatology Branch)University of São Paulo School of Medicine
    • Institute of Tropical Medicine (LIM-47 and 52)University of São Paulo School of Medicine
  • Luiz Carlos Da Costa Gayotto
    • Department of PathologyUniversity of São Paulo School of Medicine
Liver, Pancreas, and Biliary Tract

DOI: 10.1007/BF02347619

Cite this article as:
Da Silva, L.C., De Assis Madruga, C.L., Carrilho, F.J. et al. J Gastroenterol (1996) 31: 696. doi:10.1007/BF02347619

Abstract

We investigated the frequency of HBsAg clearance and the possible role of viral superinfection in a long-term follow-up of 184 patients with chronic hepatitis B (CHB). Our subjects were 184 patients with chronic hepatitis B and the follow-up was 12–216 months (mean 66.2±53.7 months). The investigative methods used were: immunoenzymatic assays for HBV, HCV, HDV, and HIV markers; polymerase chain reaction (PCR) for HBV DNA; and liver biopsy and immunoperoxidase. During the follow-up, 20 of the 184 patients cleared serum HBsAg. A comparison of patients with persistent HBsAg (group I) and of those who cleared this marker (group II) showed a significant difference in mortality (P=0.002) between the two groups and a tendency to a more severe exacerbation (flare) in group II (P=0.07). Antibodies to hepatitis C and D virus as well as antibodies to HIV were equally distributed in both groups. Thirteen patients (7.9%) from group I, but none from group II, subsequently developed hepatocellular carcinoma. These results suggest that the frequency of spontaneous clearance of HBsAg during chronic HBV infection is low. No determinant factor for the clearance was found, including the presence of liver cirrhosis. Serum HBV DNA was undetectable by PCR after clearance in 16 out of 17 patients.

Key words

hepatitis Bchronic hepatitis Bspontaneous HBsAg clearance

Copyright information

© Springer-Verlag 1996