Trends in Antimicrobial Susceptibilities among <i>Enterobacteriaceae</i> Isolated from Hospitalized Patients in the United States from 1998 to 2001

• James A. Karlowsky

  Focus Technologies, Herndon, Virginia 20171

• Mark E. Jones

  Focus Technologies, 1217 KP Hilversum, The Netherlands

• Clyde Thornsberry

  Focus Technologies, Franklin, Tennessee 37064

• Ian R. Friedland

  Merck Research Laboratories, West Point, Pennsylvania 19486

• Daniel F. Sahm

  Focus Technologies, Herndon, Virginia 20171

抄録

Longitudinal surveillance of Enterobacteriaceae for antimicrobial susceptibility is important because species of this family are among the most significant and prevalent human pathogens. To estimate rates of in vitro antimicrobial susceptibility among hospitalized patients in the United States, data from The Surveillance Network were studied for 14 agents tested against 10 species of Enterobacteriaceae ( n = 384,279) isolated from intensive-care-unit (ICU) patients and non-ICU inpatients from 1998 to 2001. Cumulative susceptibility (percent) data for all species of Enterobacteriaceae isolated from ICU patients and non-ICU inpatients, respectively, were ranked as follows: ampicillin-sulbactam (45.5 and 57.2) ≪ ticarcillin-clavulanate (74.8 and 83.5) < trimethoprim-sulfamethoxazole (87.0 and 84.5) ≅ cefotaxime (82.9 and 92.6) = ceftazidime (82.3 and 91.0) = ceftriaxone (86.5 and 93.9) = piperacillin-tazobactam (83.5 and 90.5) < levofloxacin (89.3 and 90.6) = ciprofloxacin (91.0 and 91.7) < gentamicin (91.8 and 94.3) < cefepime (95.0 and 97.9) < amikacin (98.5 and 99.2) < imipenem (100 and 100) = meropenem (100 and 100). Of those agents studied only susceptibilities to ciprofloxacin (94 to 89%) and levofloxacin (93 to 89%) decreased in a stepwise manner from 1998 to 2001. Decreased fluoroquinolone susceptibility was most pronounced for Escherichia coli , Proteus mirabilis , and Enterobacter cloacae . For all species of Enterobacteriaceae , trimethoprim-sulfamethoxazole resistance was more commonly observed in isolates with a single-drug resistance phenotype while gentamicin and fluoroquinolone resistances were more common in isolates resistant to at least one additional class of antimicrobial agent. Ongoing surveillance of Enterobacteriaceae will be particularly important to monitor changes in fluoroquinolone susceptibility, as well as changes in the prevalence of isolates resistant to multiple classes of antimicrobial agents.

収録刊行物

• Antimicrobial Agents and Chemotherapy

  Antimicrobial Agents and Chemotherapy 47 (5), 1672-1680, 2003-05

  American Society for Microbiology

キーワード

• Infectious Diseases
• Pharmacology (medical)
• Pharmacology

詳細情報

• CRID: 1362262944547106688
• NII論文ID: 30020631349
• DOI: 10.1128/aac.47.5.1672-1680.2003
• ISSN: 10986596
• ISSN: 00664804
• Web Site: https://journals.asm.org/doi/pdf/10.1128/AAC.47.5.1672-1680.2003
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