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Higher Incidence of Hemorrhagic Cystitis Following Haploidentical Related Donor Transplantation Compared with Matched

Olivia R Copelan1, Srinivasa R Sanikommu2, Jigar S Trivedi2

  • 1Case Western Reserve School of Medicine, Cleveland, Ohio.

Biology of Blood and Marrow Transplantation : Journal of the American Society for Blood and Marrow Transplantation
|December 24, 2018
PubMed

Hemorrhagic cystitis (HC) is a common and important complication of allogeneic hematopoietic cell transplantation (HCT). Reactivation of BK virus is its most common cause. The more intense immunosuppressive regimens administered to recipients of grafts from alternative donors have been reported to account for the increased susceptibility to HC in this population. This study compares patients undergoing HCT with either a haploidentical donor or a matched related donor, all of whom received identical immunosuppression with a post-transplantation cyclophosphamide-based regimen. The incidence of HC was significantly higher in the patients receiving a haploidentical graft (P = .01). The higher incidence of HC in haploidentical graft recipients is therefore directly related to the inherent immune deficiency that follows HLA-mismatched transplantation, independent of the intensity of pharmacologic immunosuppression. This finding carries significant clinical impact for the prevention and treatment of HC in haploidentical graft recipients.

Keywords:
BK polyoma virusHematopoietic cell transplantationHemorrhagic cystitis

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