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Rapidly Rising Prevalence of Nosocomial Multidrug-Resistant, Gram-Negative Bacilli: A 9-Year Surveillance Study

  • Erika M. C. D'Agata (a1)
Abstract
AbstractObjective:

To examine and quantify the temporal trends of nosocomial multidrug-resistant, gram-negative bacilli.

Design:

A 9-year surveillance study was conducted. Multidrug resistance was defined as resistance to 3 or more antimicrobial classes.

Setting:

Tertiary-care institution.

Results:

From 1994 to 2002, multidrug-resistant, gram-negative bacilli increased from 1% to 16% for multidrug-resistant Pseudomonas aeruginosa, 4% to 13% for multidrug-resistant Enterobacter species, 0.5% to 17% for multidrug-resistant Klebsiella species, 0% to 9% for multidrug-resistant Proteus species, and 0.2% to 4% for multidrug-resistant Escherichia coli (P ≤ .05). The most common pattern of multidrug resistance was co-resistance to quinolones, third-generation cephalosporins, and aminoglycosides.

Conclusion:

The rapid rise of multidrug-resistant, gram-negative bacilli may warrant infection control programs to include these pathogens in strategies aimed at limiting the emergence and spread of antimicrobial-resistant pathogens.

Copyright
Corresponding author
Beth Israel Deaconess Medical Center, Division of Infectious Diseases, 330 Brookline Ave., East Campus Mailstop SL-435G, Boston, MA 02215
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Infection Control & Hospital Epidemiology
  • ISSN: 0899-823X
  • EISSN: 1559-6834
  • URL: /core/journals/infection-control-and-hospital-epidemiology
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