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Rev. Soc. Bras. Med. Trop ; 45(4): 444-447, July-Aug. 2012. graf, tab
Article in English | LILACS | ID: lil-646899

ABSTRACT

INTRODUCTION: Approximately 30% of hepatitis C virus (HCV) monoinfected patients present persistently normal alanine aminotransferase (ALT) levels. Most of these patients have a slow progression of liver fibrosis. Studies have demonstrated the rate of liver fibrosis progression in hepatitis C virus-human immunodeficiency virus (HCV-HIV) coinfected patients is faster than in patients infected only by HCV. Few studies have evaluated the histological features of chronic hepatitis C in HIV-infected patients with normal ALT levels. METHODS: HCV-HIV coinfected patients (HCV-RNA and anti-HIV positive) with known time of HCV infection (intravenous drugs users) were selected. Patients with hepatitis B surface antigen (HBsAg) positive or hepatitis C treatment before liver biopsy were excluded. Patients were considered to have a normal ALT levels if they had at least 3 normal determinations in the previous 6 months prior to liver biopsy. All patients were submitted to liver biopsy and METAVIR scale was used. RESULTS: Of 50 studied patients 40 (80%) were males. All patients were treated with antiretroviral therapy. The ALT levels were normal in 13 (26%) patients. HCV-HIV co-infected patients with normal ALT levels had presented means of the liver fibrosis stages (0.77±0.44 versus 1.86±1.38; p<0.001) periportal inflammatory activity (0.62±0.77 versus 2.24±1.35; p<0.001) and liver fibrosis progression rate (0.058±0.043 fibrosis unit/year versus 0.118±0.102 fibrosis unit/year) significantly lower as compared to those with elevated ALT. CONCLUSIONS: HCV-HIV coinfected patients with persistently normal ALTs showed slower progression of liver fibrosis. In these patients the development of liver cirrhosis is improbable.


INTRODUÇÃO: Aproximadamente, 30% dos portadores de hepatite crônica C apresentam níveis de aminotransferases persistentemente normais (APNL). A maioria destes pacientes tem lenta progressão da fibrose hepática. Em portadores de coinfecção VHC-HIV, estudos têm demonstrado que a progressão da fibrose hepática é mais rápida que a observada em indivíduos infectados somente pelo VHC. Há poucos estudos que verificaram as características histológicas da hepatite crônica C em pacientes coinfectados pelo HIV APNL. MÉTODOS: Portadores de coinfecção VHC-HIV (HCV-RNA e anti-HIV positivos) com tempo de infecção pelo VHC conhecido (uso de drogas intravenosas) foram selecionados. Aqueles com hepatitis B surface antigen (HbsAg) positivo ou que tenham sido submetidos à terapia antiviral para hepatite C antes da biópsia hepática foram excluídos. Pacientes com pelo menos 3 determinações normais da ALT nos últimos 6 meses antes da biópsia hepática foram considerados como tendo APNL. Todos foram submetidos a biópsia hepática que foi classificada de acordo com a escala METAVIR. RESULTADOS: Foram incluídos 50 pacientes, 40 (80%) homens. Todos receberam terapia antirretroviral. Os níveis de ALT foram persistentemente normais em 13 (26%) pacientes. Pacientes coinfectados com APNL apresentaram menor média dos estágiosde fibrose hepática (0,77±0,44 versus 1,86±1,38; p<0,001), dos índices de atividade inflamatória periportal (0,62±0,77 versus 2,24±1,35; p<0,001) e progressão mais lenta da fibrose hepática (0,058±0,043 unidades de fibrose /ano versus 0,118±0,102 unidades de fibrose/ano) quando comparados àqueles com aminotransferases elevadas. CONCLUSÕES: Portadores de coinfecção VHC-HIV com APNL apresentam progressão mais lenta da fibrose hepática. Nesses pacientes o desenvolvimento de cirrose hepática é improvável.


Subject(s)
Adult , Female , Humans , Male , Alanine Transaminase/blood , Coinfection/pathology , Disease Progression , HIV Infections/pathology , Hepatitis C, Chronic/pathology , Liver Cirrhosis/virology , Biopsy , Coinfection/enzymology , Genotype , HIV Infections/complications , HIV Infections/enzymology , Hepatitis C, Chronic/complications , Hepatitis C, Chronic/enzymology , Liver Cirrhosis/enzymology , Liver Cirrhosis/pathology , Reference Values , Viral Load
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