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Methods: Patients with hematologic disorders who underwent HLA high-resolution genotyping and donor-specific HLA antibody or panel reactive antibody (PRA) testing between January 2019 and March 2023 were reviewed.

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Repeat HLA mismatches (RMM) have been historically associated with an increased risk of graft loss after repeat kidney transplantation, in particular HLA-DR RMM in sensitized recipients. As routine use of sensitive assays can at present prevent the transplantation of RMM in hosts with donor-specific antibodies, we hypothesized that RMM would no longer be associated with graft loss. We performed a registry analysis of the Collaborative Transplant Study database including 6711 patients who received a second kidney transplant (2 KT) between 2010 and 2021, with at least one HLA-A, -B or -DR mismatch.

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Aim: Detection of anti-HLA antibodies is crucial for pre-transplant histocompatibility testing, donor selection, and graft survival. The aim of this study was to evaluate the spectrum of anti-HLA antibodies among live related renal transplant recipients from one of the largest transplant centers in north India.

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HLA-compatibility remains an important triage test for deceased donor kidney allocation. Low-intermediate resolution donor HLA-typing is typically available at allocation, but its accuracy in assigning pre-transplant donor-specific anti-HLA antibody (DSA) and HLA mismatches compared to 2-field high-resolution typing is poorly characterised. Consecutive deceased donor/recipient pairs from a single centre between 2016 and 2020 were included.

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HLA class, calcineurin inhibitor levels, and the risk of graft failure in kidney recipients with donor-specific antibodies.

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Transplantation Unit, Renal Division, Department of Medicine, University Health Center (CHU) of Quebec, Faculty of Medicine, Laval University, Quebec, QC, Canada.

Introduction: De novo donor-specific HLA antibody (dnDSA) are associated with poor outcomes. Whether this observation applies to both HLA class I and II dnDSA remains unclear.

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