Risk factors for bloodstream infections caused by extended-spectrum ß-lactamase-producing Escherichia coli and Klebsiella pneumoniae.
Braz J Infect Dis
; 15(4): 370-6, 2011.
Article
em En
| MEDLINE
| ID: mdl-21861009
ABSTRACT
UNLABELLED The objective of this study was to identify risk factors for bacteremia by extended-spectrum ß-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae. Retrospective case-control study performed in a 450-bed acute care academic tertiary hospital in Barcelona, Spain. Cases included 53 patients with ESBL-producing E. coli or K. pneumoniae bacteremia, and 159 controls with non-ESBL-producing E. coli or K. pneumoniae bacteremia. Controls were matched in a 31 ratio to case patients according to species of infecting organism, age, and severity of illness in the 24-48 h before blood sample collection for culture calculated by the Simplified Acute Physiology Score (SAPS II) system. Previous antimicrobials were more frequently administered to cases than to controls (56.5% vs 17%, p < 0.001). Binary logistic regression showed that the number (> 2) of different families of antimicrobials received within 90 days before bloodstream infection was the only predictor of ESBL-producing E. coli or K. pneumoniae in blood culture (OR = 2.29, 95% CI 1.35-3.88, p = 0.002). CONCLUSION:
Previous use of different families of antimicrobials (more than two) in patients with bloodstream infection caused by E. coli or K. pneumoniae increased the risk for ESBL-producing strains.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Beta-Lactamases
/
Infecções por Klebsiella
/
Bacteriemia
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Escherichia coli
/
Infecções por Escherichia coli
/
Klebsiella pneumoniae
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Humans
/
Male
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article