The influence of occult infection with hepatitis B virus on liver histology and response to interferon treatment in chronic hepatitis C patients



Título del documento: The influence of occult infection with hepatitis B virus on liver histology and response to interferon treatment in chronic hepatitis C patients
Revue: The brazilian journal of infectious diseases
Base de datos: PERIÓDICA
Número de sistema: 000290865
ISSN: 1413-8670
Autores: 1




1
Instituciones: 1Universidade Estadual de Campinas, Faculdade de Ciencias Medicas, Campinas, Sao Paulo. Brasil
Año:
Periodo: Oct
Volumen: 8
Número: 6
Paginación: 431-439
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Caso clínico
Resumen en inglés Occult hepatitis B virus (HBV) infections have been identified in patients with chronic hepatitis C virus (HCV) infection, although the clinical relevance of occult HBV infection remains controversial. We searched for serum HBV DNA in 106 HBsAg negative/anti-HBc positive patients with chronic HCV infection and in 150 blood donors HBsAg negative/anti-HBc positive/anti-HCV negative (control group) by nested-PCR. HCV genotyping was done in 98 patients and percutaneous needle liver biopsies were performed in 59 patients. Fifty-two patients were treated for HCV infection with interferon alone (n=4) or combined with ribavirin (n=48) during one year. At the end and 24 weeks after stopping therapy, they were tested for HCV-RNA to evaluate the sustained virological response (SVR). Among the 106 HCV-positive patients, 15 (14%) were HBV-DNA positive and among the 150 HCV-negative blood donors, 6 (4%) were HBV-DNA positive. Liver biopsy gave a diagnosis of liver cirrhosis in 2/10 (20%) of the HBV-DNA positive patients and in 6/49 (12%) of the HBV-DNA negative patients. The degree of liver fibrosis and portal inflammation was similar in HCV-infected patients HBV-DNA, irrespective of HBV-DNA status. SVR was obtained in 37.5% of the HBV-DNA positive patients and in 20.5% of the HBV-DNA negative patients; this difference was not significant. In conclusion, these data suggested that occult HBV infection, which occurs at a relatively high frequency among Brazilian HCV-infected patients, was not associated with more severe grades of inflammation, ..
Disciplinas: Medicina
Palabras clave: Gastroenterología,
Hepatitis C,
Terapéutica y rehabilitación,
Infecciones crónicas,
Interferón
Keyword: Medicine,
Gastroenterology,
Hepatitis C,
Therapeutics and rehabilitation,
Chronic infections,
Interferon
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