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替考拉宁与对照抗菌药物对欧洲住院患者分离的金黄色葡萄球菌的活性比较(2007-2008 年)。

Activity of telavancin and comparator antimicrobial agents tested against Staphylococcus spp. isolated from hospitalised patients in Europe (2007-2008).

机构信息

JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA 52317, USA.

出版信息

Int J Antimicrob Agents. 2010 Oct;36(4):374-9. doi: 10.1016/j.ijantimicag.2010.05.016. Epub 2010 Jul 3.

Abstract

The activity of telavancin was evaluated against Staphylococcus spp. collected from European hospitals as part of an international surveillance study (2007-2008). A total of 7534 staphylococcal clinical isolates [5726 Staphylococcus aureus and 1808 coagulase-negative staphylococci (CoNS)] were included. Isolates were tested for susceptibility according to reference methods and minimum inhibitory concentration (MIC) values were interpreted based on Clinical and Laboratory Standards Institute (CLSI) 2010 and European Committee on Antimicrobial Susceptibility Testing (EUCAST) 2009 criteria. Telavancin breakpoints approved by the US Food and Drug Administration (FDA) were applied. Telavancin activity was evaluated against meticillin-resistant S. aureus (MRSA) displaying several antibiogram resistance patterns, including multidrug-resistant isolates. Telavancin was active against S. aureus [MIC(50/90) values (MICs for 50% and 90% of the isolates, respectively)=0.12/0.25mg/L; 100.0% susceptible] and CoNS (MIC(50/90)=0.12/0.25mg/L), inhibiting all isolates at < or =0.5mg/L. Similar results were observed when S. aureus were stratified by year or country of origin (MIC(50/90)=0.12/0.25mg/L). When MRSA isolates were clustered according to 48 different resistance patterns, telavancin showed consistent MIC(90) values (0.25mg/L) regardless of multidrug resistance. Amongst CoNS, telavancin was slightly more active against Staphylococcus capitis, Staphylococcus epidermidis, Staphylococcus hominis, Staphylococcus lugdunensis and Staphylococcus xylosus (MIC(50)=0.12 mg/L) compared with Staphylococcus haemolyticus, Staphylococcus saprophyticus and Staphylococcus warneri (MIC(50)=0.25mg/L). Overall, telavancin exhibited MIC(90) results two- to eight-fold lower than comparators (daptomycin, quinupristin/dalfopristin, vancomycin and linezolid). Based upon MIC(90) values, telavancin demonstrated potent in vitro activity against a contemporary (2007-2008) collection of Staphylococcus spp. recovered from nearly 30 European medical centres.

摘要

替考拉宁的活性评估了从欧洲医院收集的金黄色葡萄球菌,作为一个国际监测研究的一部分(2007-2008)。共有 7534 株金黄色葡萄球菌临床分离株[5726 株金黄色葡萄球菌和 1808 株凝固酶阴性葡萄球菌(CoNS)]被纳入研究。根据参考方法对分离株进行了药敏试验,根据临床和实验室标准研究所(CLSI)2010 年和欧洲抗菌药物敏感性试验委员会(EUCAST)2009 年标准解释最小抑菌浓度(MIC)值。应用了美国食品和药物管理局(FDA)批准的替考拉宁折点。替考拉宁对具有多种抗生素耐药模式的耐甲氧西林金黄色葡萄球菌(MRSA)表现出活性,包括多药耐药株。替考拉宁对金黄色葡萄球菌[MIC(50/90)值(分别为 50%和 90%分离株的 MIC)=0.12/0.25mg/L;100.0%敏感]和凝固酶阴性葡萄球菌(MIC(50/90)=0.12/0.25mg/L)有活性,所有分离株在<或=0.5mg/L 时均被抑制。当按年份或分离株来源对金黄色葡萄球菌进行分层时,观察到类似的结果(MIC(50/90)=0.12/0.25mg/L)。当根据 48 种不同耐药模式对 MRSA 分离株进行聚类时,替考拉宁显示出一致的 MIC(90)值(0.25mg/L),无论多重耐药性如何。在凝固酶阴性葡萄球菌中,与溶血葡萄球菌、腐生葡萄球菌和沃氏葡萄球菌(MIC(50)=0.25mg/L)相比,替考拉宁对表皮葡萄球菌、人葡萄球菌、路邓葡萄球菌和木糖葡萄球菌的活性稍高(MIC(50)=0.12mg/L)。总的来说,替考拉宁的 MIC(90)结果比比较药物(达托霉素、奎奴普丁/达福普汀、万古霉素和利奈唑胺)低 2 至 8 倍。根据 MIC(90)值,替考拉宁对 2007-2008 年期间从近 30 个欧洲医疗中心采集的金黄色葡萄球菌属的当代(2007-2008)分离株表现出很强的体外活性。

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