Objective To investigate the change in antimicrobial susceptibility of Enterococcus faecalis (E.faecalis) and Enterococcus faecium (E.faecium) isolated from clinical urine specimens, so as to provide laboratory evidence for clinical anti-infective treatment.Methods Antimicrobial susceptibility of E.faecalis and E.faecium isolated from urine specimens from 20 tertiary hosptials in China between 2004 and 2014 were analyzed, drug-resistant genes of vancomycin-resistant Enterococcus(VRE)were detected with polymerase chain reaction (PCR).Results A total of 788 Enterococcus strains were isolated in 2004-2014, 371 strains were E.faecalis strains, 417 were E.faecium strains.Susceptibility rates of E.faecalis to ampicillin, nitrofurantoin, fosfomycin, vancomycin, and teicoplanin were all>90%, susceptibility rates to rifampin, minocycline, and erythromycin were all<20%, there was significant difference in the susceptibility rate of E.faecalis to fosfomycin betwen July 2011-June 2012 and July 2009-June 2010(P<0.0167).Susceptibility rates of E.faecium to vancomycin and teicoplanin were 96.9% and 97.4% respectively, susceptibility rates to nitrofurantoin, minocycline, and fosfomycin were 41.7%, 51.8%, and 78.2% respectively, susceptibility rates to ampicillin, levofloxacin, rifampicin, and erythromycin were all<10%;susceptibility rates of E.faecium to nitrofurantoin had decreased tendency in different years (any two group comparison, all P<0.0167), susceptibility rates to fosfomycin in July 2011-June 2012 and July 2013-June 2014 both decreased compared with July 2009-June 2010(both P<0.0167),there were no significant changes in antimicrobial usceptibility rates in different years.14 strains of VRE all carried vanA resistance gene.Conclusion E.faecalis strains isolated from urine are susceptible to ampicillin, nitrofurantoin, and fosfomycin, E.faecium are not susceptible to most antimicrobial agents;E.faecalis and E.faecium are both susceptible to vancomycin and teicoplanin, only a few strains are resistant to antimicrobial agents.%目的 了解临床尿标本分离粪肠球菌和屎肠球菌药物敏感性状况及变迁,为临床抗感染治疗提供实验室依据.方法 分析2004-2014年全国20所三级医院患者尿标本分离的粪肠球菌和屎肠球菌的药物敏感性,采用聚合酶链反应(PCR)检测万古霉素耐药肠球菌(VRE)的耐药基因.结果 2004-2014年共分离菌株788株,其中粪肠球菌371株,屎肠球菌417株.粪肠球菌对氨苄西林、呋喃妥因、磷霉素、万古霉素和替考拉宁的敏感率均>90%,对利福平、米诺环素和红霉素的敏感率均<20%,2011年7月-2012年6月与2009年7月-2010年6月粪肠球菌对磷霉素敏感率比较,差异有统计学意义(P<0.0167).屎肠球菌对万古霉素和替考拉宁的敏感率分别为96.9%和97.4%,对呋喃妥因、米诺环素和磷霉素的敏感率分别为41.7%、51.8%和78.2%,对氨苄西林、左氧氟沙星、利福平和红霉素的敏感率均<10%;屎肠球菌对呋喃妥因敏感率不同年份有降低趋势(任两组比较均P<0.0167),2011年7月-2012年6月、2013年7月-2014年6月磷霉素敏感率较2009年7月-2010年6月有所降低(均P<0.0167),其他药物不同年份药敏情况无显著变化.14株VRE均携带vanA耐药基因.结论 尿标本分离的粪肠球菌对氨苄西林、呋喃妥因和磷霉素均较敏感,屎肠球菌对大部分抗菌药物敏感性相对较差;粪肠球菌和屎肠球菌对万古霉素和替考拉宁相对敏感,仅少数菌株耐药.
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