期刊
JOURNAL OF TRAUMA-INJURY INFECTION AND CRITICAL CARE
卷 49, 期 4, 页码 638-645出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00005373-200010000-00010
关键词
antibiotics; critical care; antibiotic resistance; surgery; trauma
Background: The purpose of this study was to determine whether the incidence of recovery and patterns of antibiotic susceptibility of pathogenic bacteria vary between intensive care units (ICUs) in a single teaching hospital. Methods: Culture and susceptibility results were collected prospectively for a 3-month period (April through June 1999) in each of the surgical, trauma, and medical ICUs, The number of unique isolates and susceptibility patterns were determined. Susceptibility of isolates among ICUs was compared with chi(2). Results: statistically significant differences between ICUs in susceptibility to various antibiotics were found for Staphylococcus aureus, Enterococcus sp, Acinetobacter sp, Enterobacter sp, Klebsiella sp, and Pseudomonas sp, Notably, vancomycin-resistant Enterococcus was not seen in the medical ICU, whereas it was seen in both the surgical and trauma ICUs, Klebsiella spp resistant to ceftazidime were seen only in the trauma ICU, The aminoglycosides and quinolones had attenuated activity against Pseudomonas sp in the surgical ICU, whereas they remained highly effective in the trauma ICU. Cefazolin had no activity against the Enterobacter sp in either of the surgical ICUs, but was highly effective in the medical ICU. Conclusion: Although the microbiologic results of this study should not be extrapolated to other institutions, the principle is of value. There is variability between ICUs in a single large teaching hospital in susceptibility of bacterial pathogens to various antibiotics. This may have implications in the design of empiric antibiotic strategies and the planning of the hospital formulary. Hospital wide or composite ICU antibiograms are inadequate for planning empiric therapy in the ICU.
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