BACKGROUND: Membranoproliferative glomerulonephritis types I (MPGN-I) and II (MPGN-II) are rare diseases that in limited case series have been reported to recur frequently in kidney transplants and have a negative impact on allograft survival. STUDY DESIGN: Retrospective database review. SETTING & PARTICIPANTS: 189,211 primary kidney transplants in the United Network for Organ Sharing (UNOS) database from September 1987 to May 2007. PREDICTOR OR FACTOR: MPGN-I (811 patients; 0.4%), MPGN-II (179 patients; 0.1%), other GN (58,129 patients; 30.7%), and all other diagnoses (130,092 patients; 68.7%). OUTCOMES: Death-censored and non-death-censored allograft survival. RESULTS: Compared with controls, patients with MPGN-I and MPGN-II were significantly younger at the time of transplant, with a median age of 36 and 27 years compared with 44 years in the GN group and 46 years in all other disease groups, respectively (all P < 0.001). Mortality in patients with MPGN-I (8.8%) was significantly lower compared with the GN (11.3%; P = 0.02) and other disease (16.6%; P < 0.001) populations and lower in those with MPGN-II (9.5%) compared with the other disease (16.6%; P = 0.01) population. Graft failure rates were significantly higher in the MPGN-I (44.5%) cohort, but not in the MPGN-II (45.3%) cohort compared with the GN (38.0%) population (P < 0.001 and P = 0.05, respectively); neither MPGN cohort differed from the other disease (43.0%) population (P = 0.4 and P = 0.5). Overall, 10-year death-censored graft survival was similar for MPGN-I (56.2%) and MPGN-II (57.5%); both were significantly worse than for GN (65.2%; P < 0.001 and P = 0.003, respectively), and only MPGN-I was significantly worse than the other disease (60.0%) population (P = 0.004). Of allograft failures with a reported cause, disease recurrence was the primary cause in 36 (14.5%) MPGN-I and 18 (29.5%) MPGN-II transplant recipients and was significantly higher compared with 879 (6.6%) GN and 1,319 (4.4%) all-other-disease recurrence failures (P < 0.001). LIMITATIONS: Limited pretransplant clinical and biopsy data. CONCLUSIONS: A diagnosis of MPGN-I or MPGN-II has a significant negative impact on overall primary allograft survival compared with other forms of glomerulonephritis, whereas only MPGN-I has a significant, but modest, negative effect compared with other causes of end-stage renal disease. Copyright Â
BACKGROUND: Membranoproliferative glomerulonephritis types I (MPGN-I) and II (MPGN-II) are rare diseases that in limited case series have been reported to recur frequently in kidney transplants and have a negative impact on allograft survival. STUDY DESIGN: Retrospective database review. SETTING & PARTICIPANTS: 189,211 primary kidney transplants in the United Network for Organ Sharing (UNOS) database from September 1987 to May 2007. PREDICTOR OR FACTOR: MPGN-I (811 patients; 0.4%), MPGN-II (179 patients; 0.1%), other GN (58,129 patients; 30.7%), and all other diagnoses (130,092 patients; 68.7%). OUTCOMES: Death-censored and non-death-censored allograft survival. RESULTS: Compared with controls, patients with MPGN-I and MPGN-II were significantly younger at the time of transplant, with a median age of 36 and 27 years compared with 44 years in the GN group and 46 years in all other disease groups, respectively (all P < 0.001). Mortality in patients with MPGN-I (8.8%) was significantly lower compared with the GN (11.3%; P = 0.02) and other disease (16.6%; P < 0.001) populations and lower in those with MPGN-II (9.5%) compared with the other disease (16.6%; P = 0.01) population. Graft failure rates were significantly higher in the MPGN-I (44.5%) cohort, but not in the MPGN-II (45.3%) cohort compared with the GN (38.0%) population (P < 0.001 and P = 0.05, respectively); neither MPGN cohort differed from the other disease (43.0%) population (P = 0.4 and P = 0.5). Overall, 10-year death-censored graft survival was similar for MPGN-I (56.2%) and MPGN-II (57.5%); both were significantly worse than for GN (65.2%; P < 0.001 and P = 0.003, respectively), and only MPGN-I was significantly worse than the other disease (60.0%) population (P = 0.004). Of allograft failures with a reported cause, disease recurrence was the primary cause in 36 (14.5%) MPGN-I and 18 (29.5%) MPGN-II transplant recipients and was significantly higher compared with 879 (6.6%) GN and 1,319 (4.4%) all-other-disease recurrence failures (P < 0.001). LIMITATIONS: Limited pretransplant clinical and biopsy data. CONCLUSIONS: A diagnosis of MPGN-I or MPGN-II has a significant negative impact on overall primary allograft survival compared with other forms of glomerulonephritis, whereas only MPGN-I has a significant, but modest, negative effect compared with other causes of end-stage renal disease. Copyright Â
Authors: Michiel J S Oosterveld; Mark R Garrelfs; Bernd Hoppe; Sandrine Florquin; Joris J T H Roelofs; L P van den Heuvel; Kerstin Amann; Jean-Claude Davin; Antonia H M Bouts; Pietrik J Schriemer; Jaap W Groothoff Journal: Clin J Am Soc Nephrol Date: 2015-08-27 Impact factor: 8.237
Authors: Richard J H Smith; Gerald B Appel; Anna M Blom; H Terence Cook; Vivette D D'Agati; Fadi Fakhouri; Véronique Fremeaux-Bacchi; Mihály Józsi; David Kavanagh; John D Lambris; Marina Noris; Matthew C Pickering; Giuseppe Remuzzi; Santiago Rodriguez de Córdoba; Sanjeev Sethi; Johan Van der Vlag; Peter F Zipfel; Carla M Nester Journal: Nat Rev Nephrol Date: 2019-03 Impact factor: 28.314
Authors: Edwin K S Wong; Kevin J Marchbank; Hannah Lomax-Browne; Isabel Y Pappworth; Harriet Denton; Katie Cooke; Sophie Ward; Amy-Claire McLoughlin; Grant Richardson; Valerie Wilson; Claire L Harris; B Paul Morgan; Svetlana Hakobyan; Paul McAlinden; Daniel P Gale; Heather Maxwell; Martin Christian; Roger Malcomson; Timothy H J Goodship; Stephen D Marks; Matthew C Pickering; David Kavanagh; H Terence Cook; Sally A Johnson Journal: Clin J Am Soc Nephrol Date: 2021-09-22 Impact factor: 8.237