贵阳某院2011～2013年铜绿假单胞菌感染的流行分布及耐药性监测

Analysis popular characteristic and drug resistance of Pseudomonas aeruginosa in a hospital of Guiyang from 2011 to 2013

目的对中国人民解放军第44医院2011年1月至2013年12月住院患者感染铜绿假单胞菌的分布情况及耐药性进行调查。方法对2011年1月至2013年12月住院患者送检临床标本中分离铜绿假单胞菌的分布情况及耐药性进行回顾性分析。结果 3年时间共分离出铜绿假单胞菌642株,其中57.0%来源于痰液标本,27.9%来源于伤口分泌物。感染病区以骨外科、ICU、老年病科及呼吸内科最为常见,分别占22.9%、20.1%、18.8%和15.9%。药敏结果显示铜绿假单胞菌对多黏菌素最为敏感,对复方磺胺甲噁唑、氨苄西林、头孢唑林100.0%耐药,对氨苄西林/舒巴坦、头孢曲松的耐药率高于90.0%。结论铜绿假单胞菌主要引起住院患者下呼吸道及术后伤口感染,其对常用抗菌药物耐药严重,临床应根据药敏结果合理应用抗菌药物。

Objective To analyze the popular characteristic and drug resistance of Pseudomonas aeruginosa in a hospital of Guiy- ang from January 2011 to December 2013. Methods The distribution characteristic and drug resistance of Pseudomonas aeruginosa isolated from clinical samples from January 2011 to December 2013 were analyzed retrospectively. Results A total of 642 strains of Pseudomonas aeruginosa were isolated for three years in our hospital from January 2011 to December 2013 ,there was 57.0% isola- ted from sputum specimens,and 27.9% isolated from excreta of wound. The infected endemic area distribution was made up of Or- thopedic Surgery, ICU, Geriatrics Department and Respiratory Department accounting for 22.9 %, 20. 10%, 18.8%~ and 15.9 % re spectively. Pseudomonas aeruginosa was most sensitive to polymyxin bacillosporin. The drug resistance rates to Trimethoprim,Am- picillin and Cefazolin were all 100. 0%. The drug resistance rates to Ampicillin/sulbactam and Ceftriaxone were 90. 0%. Conclusion Pseudomonas aeruginosa is the main cause of lower respiratory tract infections in patients and wound infection and show serious multi-drug resistant,so it is necessary to use drugs reasonably according to the drug susceptibility results.