Nguyen Thi Cam Huong , Pham Thi Hai Men , Brian Thanh Do , Hoa Pham Thi Le
{"title":"Characteristics and outcomes of HBV-infected patients with HBsAg and anti- HBs coexistence","authors":"Nguyen Thi Cam Huong , Pham Thi Hai Men , Brian Thanh Do , Hoa Pham Thi Le","doi":"10.1016/j.jcvp.2025.100220","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>The coexistence of HBsAg and anti-HBs is a unique detection in chronic HBV-infected patients. This serological status has not been reported in Vietnamese cases.</div></div><div><h3>Objectives</h3><div>description of HBV viral markers, activity of hepatitis, and progression of HBV-infected patients with HBsAg and anti-HBs coexistence over a six-month follow-up period and define related factors to HBsAg seroclearance.</div></div><div><h3>Method</h3><div>cross-sectional descriptive study with a six-month follow-up on patients who tested positive for HBsAg and anti-HBs simultaneously at the Liver Clinic nit, Hospital for Tropical Diseases, Vietnam, from 12/2018 to 12/2019.</div></div><div><h3>Result</h3><div>122 patients with coexistence of HBsAg and anti-HBs were included. 50.8 % were male, with median age of 42 (30-53). The median of ALT was 34 (24-66) U/L, 24.6 % had chronic hepatitis, 32 % had positive HBeAg, median of HBsAg was 1.76 ((-0.25) – (2.87)) log IU/mL, median of anti-HBs was 50 (24-99) mIU/mL, median of HBVDNA was 3.45 (1.46-6.55) log copies/mL. Eighty-four patients were confirmed chronic HBV infection with anti-HBs coexistence (68.9 %), 26.2 % loss HBsAg, and 6 cases (4.9 %) loss anti-HBs, as chronic HBV infection. Without chronic hepatitis, HBsAg <100 S/CO, high anti-HBs, low HBsAg quantification lower 3 log IU/mL, HBeAg negative, HBV DNA lower 1.7 log copies/mL related to HBsAg seroclearance.</div></div><div><h3>Conclusion</h3><div>The coexistence of HBsAg and anti-HBs occurs in both HBeAg-negative and HBeAg-positive patients. Most cases had high viral load, and one-fourth of cases had chronic liver diseases. HBsAg loss occurred in 26.2 % of cases and related to chronic liver disease, low HBsAg, high anti-HBs, and low HBV DNA.</div></div>","PeriodicalId":73673,"journal":{"name":"Journal of clinical virology plus","volume":"5 3","pages":"Article 100220"},"PeriodicalIF":1.6000,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of clinical virology plus","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667038025000195","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"INFECTIOUS DISEASES","Score":null,"Total":0}
引用次数: 0
Abstract
Background
The coexistence of HBsAg and anti-HBs is a unique detection in chronic HBV-infected patients. This serological status has not been reported in Vietnamese cases.
Objectives
description of HBV viral markers, activity of hepatitis, and progression of HBV-infected patients with HBsAg and anti-HBs coexistence over a six-month follow-up period and define related factors to HBsAg seroclearance.
Method
cross-sectional descriptive study with a six-month follow-up on patients who tested positive for HBsAg and anti-HBs simultaneously at the Liver Clinic nit, Hospital for Tropical Diseases, Vietnam, from 12/2018 to 12/2019.
Result
122 patients with coexistence of HBsAg and anti-HBs were included. 50.8 % were male, with median age of 42 (30-53). The median of ALT was 34 (24-66) U/L, 24.6 % had chronic hepatitis, 32 % had positive HBeAg, median of HBsAg was 1.76 ((-0.25) – (2.87)) log IU/mL, median of anti-HBs was 50 (24-99) mIU/mL, median of HBVDNA was 3.45 (1.46-6.55) log copies/mL. Eighty-four patients were confirmed chronic HBV infection with anti-HBs coexistence (68.9 %), 26.2 % loss HBsAg, and 6 cases (4.9 %) loss anti-HBs, as chronic HBV infection. Without chronic hepatitis, HBsAg <100 S/CO, high anti-HBs, low HBsAg quantification lower 3 log IU/mL, HBeAg negative, HBV DNA lower 1.7 log copies/mL related to HBsAg seroclearance.
Conclusion
The coexistence of HBsAg and anti-HBs occurs in both HBeAg-negative and HBeAg-positive patients. Most cases had high viral load, and one-fourth of cases had chronic liver diseases. HBsAg loss occurred in 26.2 % of cases and related to chronic liver disease, low HBsAg, high anti-HBs, and low HBV DNA.