摘要
目的对该医院2005年1月至2012年12月血培养阳性标本的病原菌检出构成及耐药分析,为菌血症病原菌分布及耐药状况积累数据资料。方法回顾经BD 9240和BacT/Alert3D240血培养系统进行培养,使用Microscan walkaway 40及Vitec2compact对分离菌株鉴定及药敏试验。数据分析采用WHONET5.6软件。结果 1 829血培养阳性菌株中革兰阴性杆菌986株,占53.9%;革兰阳性球菌721株,占39.4%;真菌104株,占5.68%。葡萄球菌属对万古霉素、利奈唑胺、替考拉宁耐药率为0%,对阿莫西林/棒酸、利福平、阿米卡星、复方磺胺甲噁唑、氯霉素耐药率低于40%。肠球菌对利奈唑胺、替考拉宁表现为100%敏感,但屎肠球菌对万古霉素有耐药(2.6%)。链球菌青霉素耐药率为21.7%。大肠埃希菌和肺炎克雷伯菌对亚胺培南、美罗培南耐药率为0%,对阿米卡星、哌拉西林/他唑巴坦、头孢西丁耐药率低于22%。沙门菌对CLSI推荐的5种检测药物耐药率均低于6.5%。铜绿假单胞菌对亚胺培南、美罗培南耐药率大于25%。结论血培养检出病原菌菌谱广泛,不同细菌耐药率差别较大。
Objective To analyze the detected pathogens composition in positive blood culture samples and drug resistance in our hospital from January 2005 to December 2012 in order to accumulate the data information of pathogenic bacteria distribution and drug resistance in bacteremia .Methods The BD9240 and BacT /Alert3D 240 blood culture systems were used to perform the blood culture .The identification of isolated bacteria and the drug susceptibility test were conducted by using Microscan walkaway 40 sys‐tem and the Vitec2 compact system .The Data were analyzed by adopting the Whonet5 .6 software .Results In 1 829 positive bacte‐rial strains by blood culture ,986 strains were Gram negative bacilli ,accounting for 53 .9% ;721 strains were Gram positive coccus , accounting for 39 .4% ;104 strains were fungi ,accounting for 5 .68% .The resistant rate of staphylococcus to vancomycin ,linezolid and teicoplanin was 0% ,which to amoxycillin/clavulanic acid ,rifampicin ,amikacin ,sulfamethoxazole compound and chloramphenicol was lower than 40% .The sensitive of enterococcus to linezolid and teicoplanin was 100% ,but enterococcus faecium was resistant to vancomycin（2 .6% ） .The penicillin resistant rate of Streptococcus was 21 .7% .The resistant rates of E .coli and K lebsiella pneumo‐nia were 0% to imipenem and meropenem ,and less than 22% to amikacin ,piperacillin/tazobactam and cefoxitin .The resistant rates of salmonella to CLSI recommended five kinds of detection drug were less than 6 .5% .The resistant rates of pseudomonas aerugino‐sa were more than 25% to imipenem and more than 25% to meropenem .Conclusion The pathogens spectrum detected by blood culture is widespread .The resistance rates of different bacteria vary widely .
出处
《国际检验医学杂志》
CAS
2015年第6期740-742,共3页
International Journal of Laboratory Medicine
基金
卫生部公益性行业科研基金(201002021)
云南省教育厅科学研究基金项目(2010C097)
关键词
血培养阳性
病原菌构成
耐药分析
positive blood culture
pathogen composition
analysis of drug resistance
