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Revista argentina de microbiología

versión On-line ISSN 1851-7617


OCANA CARRIZO, A. V. et al. Bacteremia by enterobacteria in adults from a university hospital: a five year analysis. Rev. argent. microbiol. [online]. 2007, vol.39, n.1, pp. 38-43. ISSN 1851-7617.

Bacteremia continues to be one of the main causes of morbidity and mortality in adult patients despite the existence of numerous antimicrobial agents and an increase in support measures. The aim of this study was to analyze the cases of community and hospital-acquired bacteremia, by evaluating the prevalence of species, risk factors, source of infection and antimicrobial susceptibility of the microorganisms involved. From January 2000 to December 2004, 129 cases of bacteremia due to enterobacteria were detected in 45 outpatients (35%) and 84 inpatients (65%). The most common risk factors were neoplasia (33.3%) and diabetes (12.4%); being urinary (29.5%) and abdominal (13.9%) the most frequently found sources of infection. E. coli was the most common enterobacteria isolated in both populations, followed by Klebsiella spp. (21.7%), and Enterobacter spp. (12.4%). Klebsiella spp. bacteremia was most common in ICU patients and, together with Enterobacter spp., constituted the most antibiotic-resistant microorganisms.

Palabras clave : bacteremia; enterobacteria; adults.

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