Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.
Antimicrob Agents Chemother. 2012 Jul;56(7):3977-80. doi: 10.1128/AAC.00260-12. Epub 2012 Apr 16.
Retrospective review from 11 Canadian hospitals showed increasing incidence of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae from 0.12 per 1,000 inpatient days during 2005 to 0.47 per 1,000 inpatient days during 2009. By 2009, susceptibility rates of ESBL-positive E. coli/K. pneumoniae were as follows: ciprofloxacin, 12.8%/9.0%; TMP/SMX, 32.9%/12.2%; and nitrofurantoin, 83.8%/10.3%. Nosocomial and nonnosocomial ESBL-producing E. coli isolates had similar susceptibility profiles, while nonnosocomial ESBL-producing K. pneumoniae was associated with decreased ciprofloxacin (P = 0.03) and nitrofurantoin (P < 0.001) susceptibilities.
11 家加拿大医院的回顾性研究显示,产超广谱β-内酰胺酶(ESBL)的大肠埃希菌和肺炎克雷伯菌的发病率从 2005 年的每 1000 个住院日 0.12 例上升到 2009 年的每 1000 个住院日 0.47 例。到 2009 年,产 ESBL 阳性大肠埃希菌/肺炎克雷伯菌的药敏率如下:环丙沙星,12.8%/9.0%;复方磺胺甲噁唑,32.9%/12.2%;呋喃妥因,83.8%/10.3%。医院内和非医院内产 ESBL 的大肠埃希菌分离株具有相似的药敏谱,而非医院内产 ESBL 的肺炎克雷伯菌与环丙沙星(P = 0.03)和呋喃妥因(P < 0.001)的敏感性降低有关。