ATC Abstracts

American Transplant Congress abstracts

  • Home
  • Meetings Archive
    • 2022 American Transplant Congress
    • 2021 American Transplant Congress
    • 2020 American Transplant Congress
    • 2019 American Transplant Congress
    • 2018 American Transplant Congress
    • 2017 American Transplant Congress
    • 2016 American Transplant Congress
    • 2015 American Transplant Congress
    • 2013 American Transplant Congress
  • Keyword Index
  • Resources
    • 2021 Resources
    • 2016 Resources
      • 2016 Welcome Letter
      • ATC 2016 Program Planning Committees
      • ASTS Council 2015-2016
      • AST Board of Directors 2015-2016
    • 2015 Resources
      • 2015 Welcome Letter
      • ATC 2015 Program Planning Committees
      • ASTS Council 2014-2015
      • AST Board of Directors 2014-2015
      • 2015 Conference Schedule
  • Search

Impact of the Baseline Anti-A/B IgG Titer on the Clinical Outcome in ABO-Incompatible Liver Transplantation

J. Lee1, E. Kim1, S. Yang1, D. Kim2, M. Ju3, J. Lee1, M. Kim1, S. Kim1, D. Joo1

1Department of Transplantation Surgery, Severance Hospital, Seoul, Korea, Republic of, 2Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Korea, Republic of, 3Department of Surgery, Gangam Severance Hospital, Seoul, Korea, Republic of

Meeting: 2020 American Transplant Congress

Abstract number: B-133

Keywords: Alloantibodies, High-risk, Liver grafts, Risk factors

Session Information

Session Name: Poster Session B: Liver: Immunosuppression and Rejection

Session Type: Poster Session

Date: Saturday, May 30, 2020

Session Time: 3:15pm-4:00pm

 Presentation Time: 3:30pm-4:00pm

Location: Virtual

*Purpose: The use of ABO incompatible (ABOi) living donors is an attractive solution for expanding the liver donor pool. We investigated the impact of the baseline anti-A/B IgG titer on the transplant outcomes in ABOi liver transplantation (LT).

*Methods: We analyzed 394 adult patients who underwent living donor LT (303 ABO compatible LT and 91 ABOi LT) between 2012 and 2018. ABOi LT patients were categorized by baseline IgG titer: low IgG titer (≤ 1:64, n=51) versus high IgG titer (≥ 1:128, n=40). All ABOi LT patients received desensitization therapy including rituximab and plasmapheresis.

*Results: Patients with high IgG titer experienced antibody rebound (≥ 1:64) more frequently than those with low IgG titer during the first month after LT (35.0% vs. 15.7%, P=0.033). Patient survival rates for ABO compatible, low IgG titer, and high IgG titer were 85.0%, 91.5%, and 74.4%, respectively, at 3 years post-transplantation (P=0.006). High IgG titer (HR, 2.76; 95% CI, 1.39-5.48; P=0.004) and MELD score of >20 (HR, 2.32; 95% CI, 1.22-4.41; P=0.010) were independent risk factors for mortality. Infection was the leading causes of death in all groups, but the proportion was significantly higher in high IgG titer group than in other groups (81.8% vs. 30.8% vs. 33.3%).

*Conclusions: Patients with high IgG titer (≥ 1:128) are associated with a higher risk of death after ABOi LT than those with low IgG titer (≤ 1:64). Thus, ABOi LT patients with high IgG titer should be managed with great care.

  • Tweet
  • Email
  • Print

To cite this abstract in AMA style:

Lee J, Kim E, Yang S, Kim D, Ju M, Lee J, Kim M, Kim S, Joo D. Impact of the Baseline Anti-A/B IgG Titer on the Clinical Outcome in ABO-Incompatible Liver Transplantation [abstract]. Am J Transplant. 2020; 20 (suppl 3). https://atcmeetingabstracts.com/abstract/impact-of-the-baseline-anti-a-b-igg-titer-on-the-clinical-outcome-in-abo-incompatible-liver-transplantation/. Accessed May 11, 2025.

« Back to 2020 American Transplant Congress

Visit Our Partner Sites

American Transplant Congress (ATC)

Visit the official site for the American Transplant Congress »

American Journal of Transplantation

The official publication for the American Society of Transplantation (AST) and the American Society of Transplant Surgeons (ASTS) »

American Society of Transplantation (AST)

An organization of more than 3000 professionals dedicated to advancing the field of transplantation. »

American Society of Transplant Surgeons (ASTS)

The society represents approximately 1,800 professionals dedicated to excellence in transplantation surgery. »

Copyright © 2013-2025 by American Society of Transplantation and the American Society of Transplant Surgeons. All rights reserved.

Privacy Policy | Terms of Use | Cookie Preferences