title: [Prevalence and antimicrobial susceptibility patterns of microorganisms causing bacteremia and fungemia in pediatric oncology patients].
abstract: The purpose of our research was to know the frequency of microorganisms causing bacteremia and/or fungemia in oncology patients from Hospital de Niños de Córdoba, as well as to describe the antimicrobial susceptibility patterns of bacteria isolated from January 2006 to April 2007. A total of 59 bacteremia and fungemia cases in 44 patients were studied. From the total number of isolations, 45.8% were gram-negative bacilli, 35.6% were gram-positive cocci, and 18.6% were yeasts. The global distribution of the most prevalent microorganisms was the following: Klebsiella spp. 15.3%; Staphylococcus aureus and Candida parapsilosis 11.9%; coagulase-negative staphylococci 10.2%; Escherichia coli 8.5%, and Pseudomonas aeruginosa 6.8%. More than 40% (41.2%) of enterobacteria showed an extended-spectrum beta-lactamase phenotype, and 20.0% of non-fermenting gram-negative bacilli were multi-resistant to tested antibiotics, while 38.5% of Staphylococcus spp. were methicillin-resistant. In conclusion, the most prevalent microorganisms were gram-negative bacilli, and within this group, enterobacteria evidenced a higher percentage of resistance to tested antibiotics.
authors.affiliation: Servicio de Bacteriología, Hospital de Niños de la Santísima Trinidad de Córdoba, Córdoba, Argentina. lauracheguirian@hotmail.com
authors.forename: M L
authors.initials: ML
authors.lastname: Cheguirián
authors.forename: L R
authors.initials: LR
authors.lastname: Carvajal
authors.forename: E M
authors.initials: EM
authors.lastname: Ledesma
authors.forename: M C
authors.initials: MC
authors.lastname: Enrico
authors.forename: A L
authors.initials: AL
authors.lastname: Reale
authors.forename: C
authors.initials: C
authors.lastname: Culasso
authors.forename: L
authors.initials: L
authors.lastname: Bertoni
mesh_terms: D016470:Bacteremia / Q000150:complications* / Q000453:epidemiology / Q000382:microbiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D016469:Fungemia / Q000150:complications* / Q000453:epidemiology / Q000382:microbiology*; D006801:Humans; D008297:Male; D008826:Microbial Sensitivity Tests; D009369:Neoplasms / Q000150:complications*; D015995:Prevalence