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Minerva Gastroenterologica e Dietologica 2016 Giugno;62(2):138-47

lingua: Inglese

Liver dysfunction and fibrosis as predictors of biochemical response to autoimmune hepatitis treatment

Júlia C. SOARES 1, Ariane BORGONOVO 1, Dariana C. MAGGI 1, Ana P. PASINATO 2, Fernanda G. RAMOS 1, Esther B. DANTAS-CORRÊA 1, Leonardo L. SCHIAVON 1, Janaína L. NARCISO-SCHIAVON 1

1 Division of Gastroenterology, Internal Medicine, Federal University of Santa Catarina, Florianópolis, Brazil; 2 Pathology Service (SAP), Federal University of Santa Catarina, University Hospital Polydoro Ernani de São Thiago, Florianópolis, Brazil


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BACKGROUND: Autoimmune hepatitis (AIH) is a disease that presents itself in various forms, ranging from aminotransferase asymptomatic alteration, acute hepatitis to decompensated cirrhosis. Few studies have evaluated the predictive criteria as a response to treatment.
METHODS: A cross-sectional analytical study examined patients with AIH who were visited in the hepatology clinic of a university hospital between January 2013 and July 2015.
RESULTS: A total of 36 patients were included (44.7±14.3 years, 22.2% male, and 19.2% of patients presented with liver failure). Patients with significant fibrosis had lower mean aminotransferases and bilirubins and higher mean prothrombin activity (PA) than those with insignificant fibrosis. Most patients (94.5%) underwent treatment with azathioprine and prednisone. In a comparison between individuals who exhibited biochemical response (ALT and AST <55 U/L in the sixth month of treatment) and those without biochemical response, it was observed that those with biochemical response presented minor proportion of patients with significant fibrosis, and these patients had a higher proportion of liver failure in initial presentation and lower mean PA. Furthermore, it was observed that the lower the PT on admission was, the lower ALT levels (r=0.682, P=0.020) and AST (r=0.431, P=0.040) in the sixth month of treatment were.
CONCLUSIONS: Individuals with liver dysfunction and elevated aminotransferases show insignificant fibrosis histologically. AIH patients who initially present liver failure and insignificant fibrosis are more likely to develop biochemical response to treatment.

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janaina.narciso@uol.com.br