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Turk J Med Sci. 2016 Jan 5;46(1):48-52. doi: 10.3906/sag-1411-156.
A persistently low HBV DNA level is a predictor of spontaneous HBsAg clearance in patients with chronic hepatitis B.Ari A1, Çalik Ş1, Tosun S1, Özsu Yilmaz S2.
Author information
- 1Department of Infectious Disease and Clinical Microbiology, İzmir Bozyaka Training and Research Hospital, İzmir, Turkey.
- 2Department of Microbiology and Clinical Microbiology, İzmir Bozyaka Training and Research Hospital, İzmir, Turkey.
AbstractBACKGROUND/AIM: The incidence and predictors of spontaneous hepatitis B surface-antigen (HBsAg) seroclearance in patients with chronic hepatitis B virus (HBV) were evaluated.
MATERIALS AND METHODS: A total of 1427 patients with chronic HBV infection, who were followed between 1994 and 2013, were investigated in this retrospective study. All data were extracted from patient files.
RESULTS: Spontaneous HBsAg seroclearance occurred in 84 patients during 8798 person-years of follow-up. The patients were categorized into 3 groups at follow-up based on HBV DNA features as continuously <100 copies/mL (Group A), 0-10,000 copies/mL (Group B), and 0 to >10,000 copies/mL (Group C). Alanine aminotransferase features in the 2 groups were categorized as continuously normal (<40 U/L) and 0 to >40 U/L. Spontaneous HBsAg seroclearance was seen primarily in patients with Group A HBV DNA features, and continuously low HBV DNA values were the main predictor of HBsAg seroclearance (P < 0.001).
CONCLUSION: These results suggest that a continuously low viral load is the most important factor affecting spontaneous HBsAg seroclearance.
KEYWORDS: HBV DNA; Spontaneous HBsAg seroclearance; incidence; predictor
PMID:27511332DOI:10.3906/sag-1411-156
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