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Renal graft survival is not influenced by a positive flow B‐cell crossmatch
Author(s) -
Bryan Christopher F,
Wakefield Mark,
Reese Jeffrey C,
Shield Charles F,
Warady Bradley A,
Winklhofer Franz T,
Murillo Daniel
Publication year - 2007
Publication title -
clinical transplantation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.918
H-Index - 76
eISSN - 1399-0012
pISSN - 0902-0063
DOI - 10.1111/j.1399-0012.2006.00585.x
Subject(s) - medicine , creatinine , transplantation , gastroenterology , group b , urology , kidney transplantation , group a , surgery
Introduction: The influence of a positive B‐cell crossmatch on graft outcome in renal transplantation is controversial. Methods: We analyzed graft survival using Kaplan–Meier estimates for recipients of deceased donor kidneys who were either regraft transplant patients (n = 198) from 1990 to August 20, 2004, or primary transplant patients (n = 361) from December 15, 2000 to August 8, 2004, each of whom had a flow T‐ and B‐cell IgG crossmatch performed before transplantation. The flow B‐cell crossmatch (FBXM) was not used to decide whether or not to transplant. Graft survival was analyzed by whether the patient's FBXM was positive or negative. We also evaluated creatinine levels and graft survival of 131 transplant patients (June 1, 2004 to July 1, 2005) by their FBXM result and by their HLA class II flow‐defined IgG PRA. Results: One‐ and three‐yr graft survival for the primary transplant patient group with a positive FBXM (98% and 84%) was not significantly different from the group with a negative FBXM (96% and 93%) (log‐rank = 0.9). Similarly, graft survival at one, five, and 10 yr for the regraft transplant group whose FBXM was positive (91%, 76%, and 61%) was not significantly different from the group whose FBXM was negative (91%, 79%, and 77%) (log‐rank = 0.4). Creatinine levels in the group of patients whose FBXM was positive (1.4 ± 0.4 mg/dL; n = 76) were not significantly different from the group with a negative FBXM (1.4 ± 0.4 mg/dL; n = 42). Even in the presence of class II PRA, a positive FBXM did not impact a patient's creatinine levels or graft outcome. Conclusion: Neither short nor long‐term graft survival of deceased donor kidneys is influenced by a positive flow B‐cell IgG crossmatch, even when caused by HLA class II antibody.