Allograft nephrectomy: a systematic review of immunological consequences and management of immunosuppressants

Allograft nephrectomy (AN) is a serious complication of kidney transplantation. Beyond surgical morbidity, AN has important immunological implications. We performed a systematic review to synthesize current evidence on the immunological impact of AN and post-allograft failure immunosuppressive strategies. A systematic review was conducted according to PRISMA guidelines. PubMed/Medline® was searched for studies published from 01/2000 to 03/2026 on transplantectomy indications and surgical techniques. Eligible designs included meta-analyses, randomized trials, and prospective or retrospective studies evaluating the immunological impact of AN and/or immunosuppression management before, during, or after graft removal in adult or pediatric kidney transplant recipients returning to dialysis. Consistent evidence indicates that immunosuppression withdrawal is the principal driver of allosensitization after graft failure. Multiple studies demonstrated marked increases in anti-HLA antibodies following the cessation of immunosuppression, regardless of nephrectomy status. When AN was performed under maintained immunosuppression, its independent effect on sensitization and retransplant outcomes appeared limited. Meta-analyses showed comparable survival after retransplantation, although higher PRA levels, delayed graft function, and acute rejection were more frequent in patients with prior nephrectomy. Allosensitization after graft failure is primarily driven by immunosuppression withdrawal/reduction rather than AN itself. Individualized immunosuppressive management balancing immunological and infectious risks is essential.