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Autologous transplant : microbial contamination of hematopoietic stem cell products

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Autologous transplant : microbial contamination of hematopoietic stem cell products

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Título Autologous transplant : microbial contamination of hematopoietic stem cell products
Autor Almeida, Igor Dullius
Schmalfuss, Tissiana
Röhsig, Liane Marise
Goldani, Luciano Zubaran
Abstract Hematopoietic progenitor cells from peripheral blood (HPCPB) are commonly used for autologous and allogenic transplants in patients with most various onco-hematological diseases, and despite the utilization of sterile techniques during collection and processing of these products, bacterial contamination can occur. This study aimed to investigate the microbial contamination of HPCPB products. Microbial cultures of 837 HPCPB products between the year 2000 and 2009 were retrospectively analyzed to determine the incidence of culture positivity and identify the main organisms that cause contamination. The microbiological studies were performed with an automated system (BacT/Alert® bioMérieux Corporate). Thirty-six (4.3%) of 837 microbial cultures were contaminated. Coagulase-negative Staphylococcus was the most frequent bacteria isolated from HPCPB products (20 [56%] of the 36 positive microbial cultures). Considering the 36 contaminated samples, 22 HPCPB products were infused and 14 discarded. Pre- and post-infusion antibiotic therapy of the patients transfused with contaminated products was established based on the isolated microorganism and its antibiogram. Microbial contamination rate of HPCPB products was low. Clinically significant outcomes after infusion of contaminated HPCPB products were not observed.
Contido em Brazilian journal of infectious diseases. Salvador. Vol. 16, n. 4 (2012), p. 345-350
Assunto Células tronco hematopoéticas
Contaminação
Controle de qualidade
Transplante autólogo
[en] Autologous transplant
[en] Hematopoietic stem cell products
[en] Microbial contamination
[en] Quality control Bacterial contamination
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/87956
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