Post-transplant glomerulopathy impact in renal graft survival

Introduction: Primary glomerulopathy is cause of renal chronic disease in renal transplant recipients (30%-50%), being an important determinant in graft survival. Recent studies reveal that recurrence was the third most frequent cause of graft lost after 10 years post-transplant monitoring process. Objective: To analyze posttransplant glomerulopathy impact as a graft lost predictor. Methods: Between January 1990 and April 2013, 849 renal biopsies were carried out on 375 transplanted patients, 50 glomerulopathy cases were diagnosed. This population was compared with an historical renal transplant recipients group between 2000 to 2011, without glomerulopathy. Renal graft survival was analyzed in both populations. Results: 50 post-transplant glomerulopathies were diagnosed in 47 patients. We did not find statistically significant differences between this group and the historical one concerning recipient age, donor sex, donor type, miss match number, organ ischaemia time, acute rejection rate, delayed graft function, and neither in the recipient mortality. We did find significant differences in male sex, 88% vs 55% (p≤ 0.05). Renal graft lost rate was significantly more frequent among patients presenting glomerular disease 38 vs 8 % (p ≤ 0.01). Conclusion: In our population, post transplant glomerulopathy was associated to graft survival reduction and a higher membranoproliferative glomerulopathy lost rate was observed.