Publications (4)17.05 Total impact
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Article: Significance of liver histology in HBsAg-positive, IgM anti-HBc-negative acute hepatitis B virus-related hepatitis.
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ABSTRACT: Delladetsima I, Papatheodoridis G V, Tiniakos D G, Hatzakis A & Tassopoulos N C (2012) Histopathology Significance of liver histology in HBsAg-positive, IgM anti-HBc-negative acute hepatitis B virus-related hepatitis Aims: The natural course of HBsAg-positive, IgM anti-HBc-negative acute hepatitis B virus (HBV)-related hepatitis is unclear. The aim of this study was to evaluate the prognostic significance of histological features and hepatic expression of HBV antigens in such patients. Methods and results: Fifty patients with HBsAg-positive, IgM anti-HBc-negative acute hepatitis B who underwent liver biopsy during the acute hepatitis episode were studied [HBeAg seroconversion (n = 16), persistently positive for HBeAg (n = 9), and persistently negative for HBeAg (n = 25)]. Twenty-six cases had features of typical acute hepatitis only (group A), and 24 cases had changes suggesting pre-existing chronic hepatitis (group B). HBcAg and/or HBsAg immunoreactivity was detected less frequently in group A than in group B (31% versus 79%, P = 0.01). HBsAg clearance was observed in 24% of patients, almost exclusively in cases with HBeAg seroconversion. HBsAg loss was significantly more frequent in group A than in group B (52% versus 0%, P < 0.001), and in cases without rather than with immunohistochemical expression of HBV antigens (55% versus 0%, P < 0.001). In group A, HBsAg clearance was observed in 80%, 54% and 0% of patients with mild, moderate or severe acute hepatitis, respectively (P = 0.034). Conclusions: Histological information is very important for the prognosis of HBsAg-positive, IgM anti-HBc-negative acute hepatitis B. HBeAg seroconversion with underlying typical acute hepatitis changes of mild to moderate severity without hepatic expression of HBV antigens strongly predicts subsequent HBsAg loss.Histopathology 04/2012; · 3.08 Impact Factor -
Article: Clinicopathological features and natural history of acute sporadic non-(A-E) hepatitis.
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ABSTRACT: The aim of the present study was to describe the clinicopathological characteristics and the natural history of acute non-(A-E) hepatitis and to assess the possible role of hepatitis G virus (HGV), TT virus (TTV) and mainly SEN virus (SENV). A cohort of 55 patients with sporadic acute non-(A-E) hepatitis with a mean follow up of 31 (6-55) months was studied. The clinical presentation was fulminant in one (1.8%), protracted with impaired regeneration in seven (12.7%) and benign in the remaining 47 (85.5%) cases. Progression to chronic hepatitis was observed in 15 (27.3%) patients; it was more frequent in clinically severe than in non-severe cases (five of eight patients or 62.5% vs 10 of 47 patients or 21.3%, P = 0.028). Six of 10 biopsied chronic non-(A-E) cases developed cirrhosis within 10-33 months. Serum HGV-RNA was detected in 16 of 55 (29.1%) patients, TTV in 20 of 38 (52.6%) patients and SENV-D/H DNA in 20 of 55 (36.4%) cases. HGV-RNA was detected more frequently in clinically severe than in non-severe cases (five of eight or 62.5% vs 11 of 47 or 23.4%, P = 0.038). There was no other association between the presence of HGV, TTV, or SENV infection and patient characteristics or severity and outcome of disease. HGV, TTV, and SENV do not seem to be responsible for the majority of sporadic acute non-(A-E) hepatitis cases. Our cohort further supports the existence of new, unknown hepatitis agent(s) with uncertain mode of transmission. The non-(A-E) agent(s) can also cause chronic hepatitis, which often has an aggressive course with rapid development of cirrhosis.Journal of Gastroenterology and Hepatology 07/2008; 23(8 Pt 1):1208-15. · 2.87 Impact Factor -
Article: Role of genetic polymorphisms in the progression of liver fibrosis in chronic hepatitis C virus infection.
Liver international: official journal of the International Association for the Study of the Liver 07/2008; 28(6):764-6. · 3.82 Impact Factor -
Article: HBsAg-negative HBV mutant transfusion-related acute hepatitis B.
The American Journal of Gastroenterology 02/2007; 102(1):216-7. · 7.28 Impact Factor
