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产超广谱β-内酰胺酶大肠埃希菌及肺炎克雷伯菌对九种抗菌药物的耐药性分析

Journal of Clinical Internal Medicine(2003)

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Abstract
目的了解肺炎克雷伯菌和大肠埃希菌产超广谱β-内酰胺酶(ESBLs)菌株的检出率及耐药性.方法采用琼脂稀释法对2001年4月~2002年2月四川大学华西医院从临床标本中分离的非重复大肠埃希菌和肺炎克雷伯菌进行产ESBLs株的初筛,用NCCLS推荐的纸片扩散法作确证试验,并测定产ESBLs株对9种抗菌药物的MIC值.结果大肠埃希菌及肺炎克雷伯菌产ESBLs株的检出率分别为26.4%和18.2%.产ESBLs菌株多呈多重耐药,耐药性由高至低依次为环丙沙星(93.3%)、头孢噻肟(70%)、头孢哌酮/舒巴坦(66.7%)、氨曲南(63.3%)、阿米卡星(36.7%)、头孢西丁(20%)、头孢他定(16.7%)、头孢吡肟(10%),亚胺培南100%敏感.结论产ESBLs细菌多呈多重耐药.亚胺培南是治疗产ESBLs细菌感染的最可靠药物.
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Key words
echerichia coli,klebsiella pneumoniae,resistance,esbls-producing
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