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[Risk factors for amoxicillin-clavulanate-resistant Escherichia coli in ICU patients]

I Mohammedi1, A Denis, S Duperret

  • 1Service de réanimation chirurgicale, hôpital Edouard-Herriot, université Claude-Bernard, Lyon, France. ismael.mohammedi@chu-lyon.fr

Annales Francaises D'Anesthesie Et De Reanimation
|October 3, 2003
PubMed
Abstract

Insights

Prior amoxicillin use significantly increases the risk of amoxicillin-clavulanate-resistant Escherichia coli infections in ICU patients. Clinicians should reconsider empiric amoxicillin-clavulanate therapy in these patients.

Area of Science:

  • Infectious Diseases
  • Clinical Microbiology
  • Intensive Care Medicine

Context:

  • Intensive care units (ICUs) face challenges with multidrug-resistant bacteria.
  • Escherichia coli is a common cause of ICU infections.
  • Antibiotic resistance, particularly to amoxicillin-clavulanate, complicates treatment.

Purpose:

  • To identify risk factors for amoxicillin-clavulanate-resistant E. coli infections in ICU patients.
  • To analyze demographic, comorbidity, and antimicrobial exposure data.
  • To determine independent predictors of resistance.

Summary:

  • A prospective study analyzed 133 ICU patients with E. coli-positive cultures.
  • Multivariate analysis revealed prior amoxicillin use as the sole significant independent risk factor (OR: 5.45).
  • This highlights the impact of recent antibiotic exposure on resistance patterns.

Impact:

  • Informs clinical practice regarding empiric antibiotic selection in ICUs.
  • Suggests avoiding amoxicillin-clavulanate for suspected E. coli infections in patients with recent amoxicillin exposure.
  • Contributes to antimicrobial stewardship efforts to combat resistance.

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