Impact of flow cytometry crossmatch b-cell positivity on living renal transplantation

K. Kurihara, H. Kitada, Y. Miura, S. Terasaka, K. Kaku, K. Miyamoto, A. Tsuchimoto, K. Masutani, M. Tanaka

Research output: Contribution to journalArticlepeer-review


Background Various studies have reported poorer graft survival among individuals displaying T-cell-positive flow cytometry crossmatches (FCXM). Good outcomes have been observed in immunologically high-risk patients with the use of rituximab, plasmapheresis, and γ-globulin. Because the relevance of FCXM B-cell-positivity (BCXM (+)) alone remains controversial, we examined its impact on living donor renal transplantations. Patients and Methods We retrospectively studied 146 adult renal transplantation recipients from April 2007 to June 2012, dividing the patients into BCXM (+) (n = 31) versus BCXM (-) recipients (n = 115). We examined patient and graft survivals as well as rejection rates at 0 to 3, 3 to 12, and 12 to 24 months. We also determined the incidence of infectious diseases. We performed stepwise multivariate regression to identify risk factors contributing rejection episodes. Results One-year patient and graft survivals were 100% in both groups. The BCXM (-) group have a 16.8% rejection probability whereas the BCXM (+) group, 33.2% (P =.201). There were no significantly differences in the incidence of infectious diseases. Only the rate of a sensitizing history was an independent risk factor for a rejection episode. Conclusion BCXM (+) showed only a tendency but not a significant impact on rejection episodes compared with BCXM (-); short-term graft survivals were similar.

Original languageEnglish
Pages (from-to)2903-2906
Number of pages4
JournalTransplantation Proceedings
Issue number8
Publication statusPublished - Oct 2013

All Science Journal Classification (ASJC) codes

  • Surgery
  • Transplantation


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