Multidrug-resistant Acinetobacter baumannii in ventilator-associated pneumonia at a medical center in southern Taiwan

J Microbiol Immunol Infect. 2007 Oct;40(5):401-5.

Abstract

Background and purpose: To evaluate the significance of multidrug-resistant Acinetobacter baumannii (MDRAB)-related ventilator-associated pneumonia at a medical center in southern Taiwan.

Methods: We retrospectively reviewed the medical records of patients with MDRAB isolated from sputum and described the characteristics of these patients. Patients were divided into 2 groups according to their clinical pulmonary infection scores (CPIS), and their host factors and outcomes compared.

Results: In the patient group with significant MDRAB-related lung infection, Acute Physiology and Chronic Health Evaluation II scores were significantly higher than in those patients with lower CPIS scores (<6). However, the clinical outcomes, including the duration of hospitalization after isolation of MDRAB and mortality rate, were not different.

Conclusion: Our investigation showed that significant lung infections with MDRAB isolation did not result in prolonged hospitalization or increased mortality. The initial clinical severity of the group with significant MDRAB-related lung infection was significantly greater than in the other. We propose that MDRAB-related pneumonia should be regarded as a signal of the clinical severity of the patient rather than as a prognostic factor.

MeSH terms

  • APACHE
  • Acinetobacter Infections / mortality
  • Acinetobacter Infections / physiopathology
  • Acinetobacter baumannii / drug effects*
  • Acinetobacter baumannii / isolation & purification
  • Aged
  • Aged, 80 and over
  • Cross Infection / microbiology*
  • Cross Infection / mortality
  • Cross Infection / physiopathology
  • Drug Resistance, Multiple, Bacterial*
  • Female
  • Humans
  • Length of Stay
  • Male
  • Middle Aged
  • Pneumonia, Ventilator-Associated / microbiology*
  • Pneumonia, Ventilator-Associated / mortality
  • Pneumonia, Ventilator-Associated / physiopathology
  • Prognosis
  • Retrospective Studies
  • Sputum / microbiology
  • Taiwan