临床感染中病原菌的分布及耐药性分析

    Pathogen distribution and drug resistance analysis in clinical infection

    • 摘要: 目的:了解临床感染中常见病原菌分布及耐药情况,为临床医生合理选用抗菌药物提供依据。方法:对2009年临床标本中分离的602株病原菌的分布情况进行统计,并分析常见感染菌的耐药率。结果:分离的602株细菌中,G+菌134株(22.26%),G-菌468株(77.74%)。G+菌中以表皮葡萄球菌感染为多见(71株),其次为其他链球菌(35株);而G-菌中大肠埃希菌(178株)居于首位,其次是肠杆菌属(80株)和克雷伯菌属(75株)。表皮葡萄球菌对新生霉素及氨苄西林100.00%敏感,对氨曲南、阿奇霉素、青霉素耐药率分别为96.00%、96.00%、92.42%。大肠埃希菌对呋喃妥因敏感,对青霉素、利福平、林可霉素均100.00%耐药。结论:林可霉素、青霉素、阿奇霉素的耐药率极高,G+菌对氨苄西林、万古霉素、新生霉素等耐药率较低;G-菌对头孢哌酮/舒巴坦、他唑巴坦、哌拉西林/他唑巴坦等最为敏感。

       

      Abstract: Objective:To comprehend the distribution of common pathogens and drug resistance in clinical infection,and provide the basis for rational use of antimicrobial drugs to clinicians. Methods:The statistical distribution of 602 strains of bacteria isolated from clinical samples in 2009 and the bacterial resistance rates of common infection were analyzed. Results:There were 134 strains of Gram-positive bacteria(22.26%),468 strains of Gram-negative bacteria(77.74%) in 602 strains of isolated bacteria.In Gram-positive bacteria infection,Staphylococcus epidermidis infection was more common(11.79%),followed by other streptococci(5.81%);while E.coli infection(29.57%) was at the top in Gram-negative bacteria infection,followed by Enterobacter(13.29%) and Klebsiella(12.46%).Drug susceptibility analysis revealed that Staphylococcus epidermidis was sensitive to novobiocin and ampicillin 100.00% and resistant to aztreonam,azithromycin and penicillin,the resistance rates were respectively 96.00%,96.00% and 92.42%.E.coli was sensitive to nitrofurantoin and 100.00% resistant to penicillin,rifampin and lincomycin. Conclusions:The drug resistant rates of penicillin,lincomycin and azithromycin were very high,the drug resistant rates of Gram-positive bacteria to ampicillin,vancomycin,novobiocin are low;the Gram-negative bacteria is the most sensitive to cefoperazone/sulbactam,tazobactam,piperacillin/tazobactam.

       

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