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Recurrence of membranous nephropathy after renal transplantation: probability, outcome and risk factors
J P Cosyns1, C Couchoud, C Pouteil-Noble
1Department of Pathology, University of Louvain Medical School, Cliniques Universitaires St. Luc, Brussels, Belgium.
Abstract:
Recurrence of membranous nephropathy after renal transplantation has been reported either anecdotally or in a few series. In the present study, the potential risk factors as well as hitherto unreported actuarial risk for recurrence and graft loss due to recurrence were evaluated by combining data of a series of transplanted patients with MN at Louvain Medical School (n = 12) and at Lyon (n = 18; previously reported by Couchoud et al. 1995) giving a total of 30 patients. No risk factor for recurrence was identified as there was no statistical difference between the patients with and without recurrence for duration of MN in native kidneys or of pretransplant hemodialysis, presence of HLA-DR3, graft origin and use of cyclosporin. Actuarial risk for recurrence reached 29% at 3 years, plateauing up to 10 years. The outcome of recurrence was poor since the actual risk for graft loss among patients with recurrent MN was 38 and 52% at 5 and 10 years, respectively.
Insights
Membranous nephropathy recurrence after kidney transplant is common, with a 29% risk at 3 years. Recurrence leads to poor graft survival, with a 52% risk of graft loss by 10 years.
Area of Science:
- Nephrology
- Transplantation Immunology
Background:
- Membranous nephropathy (MN) recurrence post-renal transplantation is a recognized complication.
- Limited data exists on risk factors and long-term outcomes of MN recurrence.
Observation:
- A combined analysis of 30 kidney transplant recipients with MN was performed.
- Patients with and without recurrence showed no statistical differences in pre-transplant factors.
Findings:
- The actuarial risk of MN recurrence reached 29% at 3 years post-transplant.
- Graft loss due to recurrent MN was observed in 38% at 5 years and 52% at 10 years.
Implications:
- Recurrence of membranous nephropathy significantly impacts long-term kidney graft survival.
- Further research is needed to identify predictive markers and preventive strategies for MN recurrence.