2006
DOI: 10.1093/jac/dkl035
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Risk factors for community-onset urinary tract infections due to Escherichia coli harbouring extended-spectrum β-lactamases

Abstract: We detected a marked increase in infections due to ESBL-producing E. coli, especially in the community, in the periods studied. Only previous exposure to the oxyimino cephalosporin cefuroxime, and not to ciprofloxacin, aminoglycosides or third-generation cephalosporins, was predictive of an ESBL-producing E. coli community-onset infection in our area. The emergence of the CTX-M type of beta-lactamase in E. coli follows closely the spread of ESBLs in community isolates.

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Cited by 287 publications
(230 citation statements)
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“…7 Use of beta-lactam antibiotics containing an oxyimino group (cefuroxime, ceftriaxone, cefotaxime, ceftazidime, or aztreonam) are risk factors for ESBL-KP. [8][9][10][11] Nevertheless, time to use this group of drugs should not be guided by hospitalization length, because we could not correlate increased resistance with duration of hospitalization. Our institution will change the carbapenem restriction and assess the long term benefits of this approach in the mortality of patients with ESBL infection as well as the effect on resistance profile.…”
Section: Resultsmentioning
confidence: 95%
“…7 Use of beta-lactam antibiotics containing an oxyimino group (cefuroxime, ceftriaxone, cefotaxime, ceftazidime, or aztreonam) are risk factors for ESBL-KP. [8][9][10][11] Nevertheless, time to use this group of drugs should not be guided by hospitalization length, because we could not correlate increased resistance with duration of hospitalization. Our institution will change the carbapenem restriction and assess the long term benefits of this approach in the mortality of patients with ESBL infection as well as the effect on resistance profile.…”
Section: Resultsmentioning
confidence: 95%
“…and cotrimoxazole is often associated with CTX-M production (16,17), thereby limiting the choice of effective antimicrobial drugs to carbapenems or colistin.…”
mentioning
confidence: 99%
“…Respecto a las condiciones previas de exposición, el 61,6% de los pacientes había sido hospitalizado en el último año por IVU, hecho que resalta la asociación entre las hospitalizaciones previas por IVU con la infección por cepas resistentes expuesta en estudios previos 7,8,13 . Llama la atención que en el presente estudio el 25% de los pacientes presentara uso previo de antibióticos, teniendo en cuenta la fuerte asociación existente entre el tratamiento previo con antibióticos y la infección por microorganismos BLEE, como cefuroxima (OR 21,42; IC 95%: 5,38-85,22) 14 y fluoroquinolonas (OR 12,8; IC 95%: 4,4-37,2) 15 . En lo referente al tratamiento que recibieron los pacientes, a pesar del desarrollo de guías locales, hay errores en la prescripción de antibióticos, ya que solo el 10,7% de los pacientes recibió nitrofurantoína, la cual es recomendada como la primera línea de tratamiento empírico para IVU en Colombia 11 , y el 29,6% recibió ciprofloxacino, el cual presenta alta resistencia en nuestro medio con cifras desde el 31,4% en Bogotá hasta el 57,9% en Cartagena 16,17 .…”
Section: Resultsunclassified