New Orleans, Louisiana BK virus (BKV) is a human polyomavirus that has been implicated as a common cause of late-onset hemorrhagic cystitis in patients who have undergone bone marrow transplantation [1, 2].BKV has also been shown to be a significant cause of tubulointerstitial nephritis, vasculopathy, and allograft dysfunction in kidney transplant recipients [].In contrast, reports of BKV … of BKV-infected transitional cells/no. This frequency was markedly higher than the rare infected cells previously reported among HIV-infected patients with asymptomatic BKV urinary shedding [Longitudinal analysis of BK virus (BKV)—infected transitional cells from a patient with prolonged and refractory hemorrhagic cystitis after 2 infusions of cidofovir. Hemorrhagic cystitis (HC) occurring after engraftment in recipients of allogeneic hematopoietic stem cell transplants (HSCT) has been associated with latent BK-virus (BKV) reactivation. To our knowledge this is the first systematic review for the management of BKV … Search for other works by this author on: Several smaller normal transitional cells are also seen. Relationship of BK Polyoma Virus (BKV) in the Urine with Hemorrhagic Cystitis and Renal Function in Recipients of T CelleDepleted Peripheral Blood and Cord Blood Stem Cell Transplantations Yeon Joo Lee1, Junting Zheng2, Yovanna Kolitsopoulos1, Dick Chung1, Isabelle Amigues1, Tammy Son3, Kathleen Choo3, Jeff Hester4, Sergio A. Giralt3,5, Ilya G. … Major clinical manifestations of BKV infection include hemorrhagic cystitis, which is inflammation of the urinary bladder associated with bloody urine, in bone marrow transplant recipients; ureteral stenosis, or narrowing, and nephropathy in kidney transplant recipients. Several uninfected cells with pale nuclei are also seen. The administration of cyclophosphamide also likely contributed to the severity of his hemorrhagic cystitis, although cyclophosphamide-induced hemorrhagic cystitis is typically characterized by rapid onset and short duration of symptoms.Previous case reports have suggested a role for cidofovir in the treatment of BKV-associated hemorrhagic cystitis [The potential utility of cidofovir for the treatment of progressive multifocal leukoencephalopathy due to JC virus, a related human polyomavirus, has also been an area of active investigation. Multidose Priming and Delayed Boosting Improve PfSPZ Vaccine Efficacy against Heterologous There are no high-quality comparative studies. An effective multi-disciplinary approach leading to early recognition and initiation of treatment is encouraged. Department of Pathology, Massachusetts General Hospital There is insufficient evidence to recommend prophylactic quinolones. 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