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Ventilator-associated tracheitis in children: does antibiotic duration matter?

Pranita D Tamma1, Alison E Turnbull, Aaron M Milstone

  • 1Department of Pediatric Infectious Diseases, Johns Hopkins Medical Institutions, Baltimore, MD 21287, USA. ptamma1@jhmi.edu

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|May 5, 2011
PubMed

Insights

Prolonged antibiotic treatment for ventilator-associated tracheitis (VAT) does not prevent hospital-acquired pneumonia (HAP) or ventilator-associated pneumonia (VAP). Longer antibiotic courses increase the risk of multidrug-resistant organism (MDRO) acquisition.

Area of Science:

  • Critical Care Medicine
  • Infectious Diseases
  • Pediatric Pulmonology

Background:

  • The optimal duration of antibiotic therapy for ventilator-associated tracheitis (VAT) remains undefined.
  • Prolonged antibiotic courses may lead to unnecessary treatment durations.
  • Current guidelines lack clear recommendations on VAT antibiotic duration.

Purpose of the Study:

  • To compare the efficacy of prolonged-course (≥7 days) versus short-course (<7 days) antibiotic therapy for VAT in preventing progression to hospital-acquired pneumonia (HAP) or ventilator-associated pneumonia (VAP).
  • To assess the association between prolonged-course antibiotic therapy for VAT and the acquisition of multidrug-resistant organisms (MDROs).

Main Methods:

  • Retrospective cohort study involving pediatric patients (≤18 years) requiring mechanical ventilation for ≥48 hours.
  • Analysis of patients who received antibiotic therapy for clinician-suspected VAT between January 2007 and December 2009.
  • Comparison of outcomes, including HAP/VAP development and MDRO acquisition, between short-course and prolonged-course antibiotic groups.

Main Results:

  • Prolonged-course antibiotics for VAT did not demonstrate a protective effect against subsequent HAP or VAP (HR, 1.08; 95% CI, 0.40-2.91).
  • Factors associated with increased risk of MDRO colonization or infection included prolonged-course antibiotic therapy (HR, 5.15; 95% CI, 1.54-7.19), combination antibiotic therapy (HR, 3.24; 95% CI, 1.54-6.82), and longer hospital exposure.
  • Only 118 out of 150 patients initially treated for VAT met the study's criteria for VAT.

Conclusions:

  • Extended antibiotic therapy for VAT does not offer additional protection against HAP or VAP compared to shorter courses.
  • Prolonged antibiotic use for VAT is significantly associated with an increased risk of acquiring multidrug-resistant organisms.
  • Clinical practice should consider shorter antibiotic durations for VAT to mitigate MDRO risks.
Abstract

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