Abstract
BackgroundThe shortage of donor liver restricts liver transplantation (LT). Nowadays, donor liver with ABO blood group incompatibility between donor and recipient has become an option to expand the source of donor liver. Although it is now possible to perform ABO-incompatible (ABO-I) LT, antibody-mediated rejection (AMR) has been recognized as the primary cause of desperate outcomes after ABO-I LT. Anti-A/B antibody is the trigger of immune response to ABO-I LT graft injury. Therapeutic plasma exchange (TPE) can quickly reduce the titer of plasma antibodies and effectively inhibit humoral immunity. Data sourcesWe searched PubMed and CNKI databases using search terms “therapeutic plasma exchange”, “ABO-incompatible liver transplantation”, “ABO-I LT”, “liver transplantation”, “LT”, “antibody-mediated rejection”, and “AMR”. Additional publications were identified by a manual search of references from key articles. The relevant publications published before September 30, 2020 were included in this review. ResultsDifferent centers have made different attempts on whether to use TPE, when to use TPE and how often to use TPE. However, the control standard of lectin revision level is always controversial, the target titer varies significantly from center to center, and the standard target titer has not yet been established. TPE has several schemes to reduce antibody titers, but there is a lack of clinical trials that provide standardized procedures. ConclusionsTPE is essential for ABO-I LT. Hence, further research and clinical trials should be conducted to determine the best regimen for TPE to remove ABO antibodies and prevent AMR.
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