Treatment of Antibody-Mediated Rejection After Kidney Transplantation – 10 Years’ Experience With Apheresis at a Single Center

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Abstract

Antibody-mediated rejection (AMR) is a major cause of kidney graft failure. We aimed to analyze treatment and outcome of AMR in a national cohort of 75 biopsy-proven acute (43 patients, 57%) or chronic active (32 patients, 43%) AMR episodes between 2000 and 2015. The mean patients' age was 46 ± 16 years, the majority was treated with plasma exchange, 4% received immunoadsorption and 7% received both. The majority received pulse methylprednisolone and low-dose CMV hyperimmune globulin, 20% received bortezomib and 13% rituximab. Concomitant infection was treated in 40% of patients. The immediate treatment outcome was successful in 91%, the 1- and 3-year graft survival rates were 71% and 57%, while 3-year patient survival was 97%. Chronic active AMR was associated with worse graft survival than acute AMR (log rank P = 0.06). To conclude, intensive treatment with apheresis and additional immunosuppression was effective in reversing AMR, but long-term graft survival remains markedly decreased, especially in chronic active AMR.

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