BK polyomavirus-associated hemorrhagic cystitis among pediatric allogeneic bone marrow transplant recipients

Koskenvuo, M. and Dumoulin, A. and Lautenschlager, I. and Auvinen, E. and Mannonen, L. and Anttila, V. J. and Jahnukainen, K. and Saarinen-Pihkala, U. M. and Hirsch, H. H.. (2013) BK polyomavirus-associated hemorrhagic cystitis among pediatric allogeneic bone marrow transplant recipients. Journal of clinical virology, Vol. 56, H. 1. pp. 77-81.

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Official URL: http://edoc.unibas.ch/dok/A6338465

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BACKGROUND: BK polyomavirus-associated hemorrhagic cystitis (BK-PyVHC) is a significant complication of allogenic hematopoietic stem cell transplantation (HSCT), but risk factors and treatment are currently unresolved. BK-PyVHC typically presents with clinical cystitis, macrohematuria, and increasing urine and blood BKV loads. OBJECTIVES: Characterization of children undergoing allogeneic HSCT with BK-PyVHC and their clinical and antibody response to cidofovir treatment. STUDY DESIGN: By prospective screening of urine and plasma in 50 pediatric allogenic HSCT performed between 2008 and 2010, we identified 6 (12%) children with BK-PyVHC. Cidofovir was administered intravenously to 5 patients and intravesically to 4 patients (3 double treatments). RESULTS: Decreasing BKV viremia of<2log(10)copies/mL and clinical resolution was seen in 4 patients over 5-12 weeks. Responses occurred only in patients mounting BKV-specific IgM and IgG responses. Epidemic curve plots, BKV genotyping and contact tracing provided evidence of transmission between 2 BKV-seronegative patients, but ruled out transmission among the remaining four patients CONCLUSIONS: The data suggest that BK-PyVHC may be the result of nosocomial transmission in children with low/undetectable BKV antibodies and raises urgent questions about appropriate infection control measures and the role of cidofovir.
Faculties and Departments:03 Faculty of Medicine > Departement Biomedizin > Division of Medical Microbiology > Transplantation Virology (Hirsch)
UniBasel Contributors:Hirsch, Hans H.
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:10 Apr 2015 09:12
Deposited On:10 Apr 2015 09:12

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