Serum hepatitis B surface antigen titer and transient elastography in screening for insignificant fibrosis in HBeAg-positive chronic hepatitis B patients
Authors Liang L, zhu X, Yan L, Du L, Liu C, Chen L, Liao J, Tang H
Received 5 September 2014
Accepted for publication 5 November 2014
Published 13 February 2015 Volume 2015:11 Pages 229—235
Checked for plagiarism Yes
Review by Single-blind
Peer reviewer comments 2
Editor who approved publication: Professor Garry Walsh
Ling-Bo Liang, Xia Zhu, Li-Bo Yan, Ling-Yao Du, Cong Liu, Li-Yu Chen, Juan Liao, Hong Tang
Center of Infectious Disease, West China Hospital, West China School of Medicine, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, People’s Republic of China
Objective: To explore the predictive value of serum hepatitis B surface antigen (HBsAg) titer and transient elastography in screening for insignificant fibrosis in hepatitis B e antigen (HBeAg)-positive chronic hepatitis B patients.
Methods: We conducted a cross-sectional study of eligible patients treated from March 2012 to May 2013 at the West China Hospital of Sichuan University. Eligible patients underwent liver transient elastography and liver biopsy. We assessed the serum HBsAg level, serum hepatitis B virus (HBV) deoxyribonucleic acid (DNA) level, HBV genotypes, liver stiffness measurement (LSM) values by transient elastography, and histological fibrosis staging by METAVIR classification.
Results: A total of 129 consecutive patients were recruited. The LSM value (P<0.001, odds ratio 14.67, 95% CI 0.158–0.551) and log10HBsAg (P=0.045, odds ratio 4.03, 95% CI 0.136–0.976) correlated with a liver fibrosis score <F2, independently. Inverse correlations were found between log10HBsAg and the LSM value (r=-576, P<0.001) and fibrosis staging (r=-374, P<0.001). Patients with a fibrosis score <F2 had a significantly higher log10HBsAg than patients with a fibrosis score ≥F2 among those with an LSM value under 9.4 kPa (4.6±0.7 vs 4.3±0.5, P=0.006). The HBsAg titer achieved an area under the receiver operating characteristic curve of 0.758 (P<0.001, 95% CI 0.631–0.884) in predicting a fibrosis score <F2, with a cut-off value of 10,400 IU/mL, a positive predictive value of 73%, and a negative predictive value of 79%.
Conclusion: In HBeAg-positive patients with an alanine aminotransferase level <2× the upper limit of normal, high serum HBsAg levels can predict a fibrosis score <F2, and a lower HBsAg titer could be supportive of early fibrosis in patients with an LSM value under 9.4 kPa.
Keywords: hepatitis B e antigen, HBsAg, HBV
This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.Download Article [PDF] View Full Text [HTML][Machine readable]