Abstract
The utility of hepatitis B immunoglobulin (HBIg) in hepatitis D virus (HDV)-reactivation prophylaxis remains contentious. This study compared liver transplant (LT) patients based on whether they received perioperative HBIg to assess its protective effect against HDV reactivation. Fifty-seven recipients with hepatitis B virus (HBV) and HBV/HDV, who were at least 1 year posttransplantation as of January 1, 2021, were enrolled in this single-center study. Tests for hepatitis B surface antigen (HBsAg), anti-HDV antibody, and quantitative reverse transcription polymerase chain reaction for HBV DNA and HDV RNA were performed. Interviews were conducted to assess compliance with the nucleos(t) ide analogue (NA) regimen and to document preoperative HBV/HDV status. Liver function tests were also carried out. The nonparametric Mann-Whitney U-test was utilized to determine statistical significance, with P<0.05 considered significant. Data analysis was conducted using GraphPad Prism software. The prevalence of HDV RNA, HBV DNA, HBsAg, and anti-HDV positivity in the HBIg group (n=23) was 4.3% (n=1), 17.4% (n=4), 8.7% (n=2), and 95.7% (n=22), respectively. In the non-HBIg group (n=34), these rates were 5.9% (n=2), 8.8% (n=3), 11.8% (n=4), and 97.1% (n=33), respectively. Interviews revealed that all reactivations occurred in patients who were noncompliant with their NA regimen. Eleven of the 13 patients initially reported to be monoinfected with HBV pretransplantation were anti-HDV-positive. No HDV replication occurred in either group due to spontaneous reactivation. High-efficacy NAs appear to be effective in sustaining HDV suppression post-LT. Most recrudescent cases of chronic hepatitis D are mild and self-limiting, typically resolving after 1-2 years of replication, as evidenced by liver function tests.
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