Abstract
We analyzed data from 64,539 consecutive patients in the Japanese national transplant registry, including 40,195 after allogeneic hematopoietic stem cell transplantation (HSCT), 24,215 after autologous HSCT and 129 after syngeneic HSCT, of whom 299 developed Epstein-Barr virus-positive post-transplant lymphoproliferative disorder (PTLD). The probability of developing PTLD at 2 years post-HSCT was .79% after allogeneic transplantation, .78% after syngeneic transplantation, and .11% after autologous transplantation. The following variables were identified as risk factors after allogeneic HSCT in multivariate analysis: antithymocyte globulin (ATG) use in a conditioning regimen, ATG use for acute graft-versus-host disease (GVHD) treatment, donor other than an HLA-matched related donor, aplastic anemia, second or subsequent allogeneic HSCT, the most recent year of transplantation, and acute GVHD. The probability at 2 years increased particularly after 2009 (1.24%) than before 2009 (.45%). To stratify the risk of PTLD before allogeneic HSCT, we developed a novel 5-point scoring system based on 3 pretransplant risk factors: ATG use in a conditioning regimen (high dose, 2 points; low dose, 1 point), donor type (HLA-mismatched related d...Continue Reading
Citations
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