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广州地区产金属β-内酰胺酶铜绿假单胞菌的流行病学研究 被引量:6

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摘要 目的调查广州地区耐亚胺培南铜绿假单胞菌产金属酶的流行情况,以及产酶菌的耐药谱,以期指导临床用药。方法用VITEK-32型全自动细菌分析系统筛选出来自广州4家三甲医院20052007年耐亚胺培南和(或)头孢他啶的铜绿假单胞菌,琼脂糖平皿二倍稀释法测定铜绿假单胞菌对常用抗生素的MIC值,PCR技术检测编码金属酶的IMP、VIM、GIM-1和SPM-1共4种基因型。结果 144株受试菌中PCR检测金属β-内酰胺酶阳性26株,其中扩增IMP型阳性25株,VIM型阳性1株。未检测出GIM-1和SPM-1型金属酶。产金属酶菌株对多种抗生素高度耐药且耐药率明显高于非产金属酶菌株(P〈0.001)。结论本地区中分离产金属酶的铜绿假单胞菌以IMP型为主,对临床常用的多种抗生素具有高度耐药性,且呈水平传播趋势,应加强对产酶株的临床检测和监控。
出处 《南方医科大学学报》 CAS CSCD 北大核心 2010年第8期1893-1895,共3页 Journal of Southern Medical University
基金 广东省医学科研基金(A2005260)
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参考文献10

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