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http://dx.doi.org/10.14776/piv.2017.24.2.71

Etiology of Bacteremia in Children with Hemato-oncologic Diseases from a Single Center from 2011 to 2015  

Park, Ji Young (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine)
Yun, Ki Wook (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine)
Kang, Hyoung Jin (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine)
Park, Kyung Duk (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine)
Shin, Hee Young (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine)
Lee, Hoan Jong (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine)
Choi, Eun Hwa (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine)
Publication Information
Pediatric Infection and Vaccine / v.24, no.2, 2017 , pp. 71-78 More about this Journal
Abstract
Purpose: The aim of this study was to identify the pathogens of blood stream infection (BSI) in children with hemato-oncologic disorders, to analyze susceptibility patterns of microorganisms to guide empirical antimicrobial therapy, and to compare temporal trends of the pathogen and antimicrobial susceptibility with those of previous studies. Methods: We retrospectively analyzed the medical records of children with hemato-oncologic disorders whose blood culture grew pathogens at the Seoul National University Children's Hospital between 2011 and 2015. Results: A total of 167 patients developed 221 episodes of bacteremia. Among 229 pathogens, gram-negative bacteria (GNB) accounted for 69.0% (64.0% in 2002 to 2005, 63.4% in 2006 to 2010); gram-positive bacteria (GPB) accounted for 28.8% (31.3% in 2002 to 2005, 34.6% in 2006 to 2010); and fungus accounted for 2.2%. Among GNB, Klebsiella species (53.2%, 84/158) and Escherichia coli (19.6%, 31/158) were common. Staphylococcus aureus (48.5%, 32/66) and viridans streptococci (21.2%, 14/66) were frequently isolated among GPB. The susceptibilities of oxacillin and vancomycin in GPB were 54.8% and 96.9% (51.5% and 95.5% in 2002 to 2005; 34.1% and 90.5% in 2006 to 2010), respectively, whereas in GNB, the susceptibilities of cefotaxime, piperacillin/tazobactam, and imipenem were 73.2%, 77.2%, and 92.6% (75.9%, 82.8%, and 93.4% in 2002 to 2005; 62.8%, 82.9%, 93.8% and in 2006 to 2010), respectively. There were no significant differences in the proportion of etiologic agents or the antimicrobial susceptibilities between the current study and that of the previous two studies from 2002 to 2010. Overall fatality rate was 13.1%. Conclusions: GNB predominated in BSI among children with hemato-oncologic disorders. The etiology of bacteremia and antimicrobial susceptibility were comparable to those of the previous studies. Thus, piperacillin/tazobactam can be used as the initial empirical antimicrobial agent in febrile neutropenia.
Keywords
Bacteremia; Child; Neoplasms; Korea;
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