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阑尾腔内感染产超广谱β-内酰胺酶大肠埃希菌的耐药性分析 被引量:1

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摘要 目的探讨阑尾腔内感染大肠埃希菌的耐药性及产超广谱β-内酰胺酶(ESBLs)检测。方法选择急性阑尾炎患者阑尾残腔脓液中分离出的大肠埃希菌210株,采用法国梅里埃ATB-Expression分析仪及配套ID32E鉴定卡进行菌株鉴定。药敏试验按NCCLS 2004年推荐的K-B琼脂扩散法操作并判断结果。采用改良的酶提取物三维试验法测定ESBLs。结果从210株大肠埃希菌中检出产ESBLs菌株69株,检出率高达32.9%。大肠埃希菌对头孢西丁、亚胺培南、哌拉西林/他唑巴坦和头孢哌酮/舒巴坦的耐药率均低于20%;对氨苄西林、哌拉西林、头孢唑啉和环丙沙星的耐药率均高于60%。产ESBLs菌株对14种抗生素的耐药性大部分高于非产ESBLs菌株。结论急性阑尾炎患者阑尾残腔内的大肠埃希菌产生耐药的主要原因是产生ESBLs。对于产ESBLs大肠埃希菌的感染,经验用药可选择β-内酰胺类/β-内酰胺酶抑制剂、头霉类抗生素,对重症感染可首选碳青霉烯类抗生素。
作者 徐文震
出处 《海峡药学》 2011年第2期156-157,共2页 Strait Pharmaceutical Journal
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