2005-2006年铜绿假单胞菌医院感染及耐药性分析

Nosocomial Infection Analysis and Resistance Induced by Pseudomonas aeruginosa During 2005-2006

目的了解2005年1月-2006年12月医院铜绿假单胞菌感染分布及其对不同类型抗菌药物的耐药情况,以指导临床合理用药。方法采用法国生物梅里埃公司的API系统及VITEK2系统进行细菌鉴定,用K-B法及VITEK2进行药敏试验,用WHONET5.4软件分析病原菌的耐药性。结果铜绿假单胞菌对氨苄西林/舒巴坦、头孢噻肟、头孢曲松的耐药率均>70%,对环丙沙星的耐药率最低,约30%。结论铜绿假单胞菌仍是医院病原菌感染的主要致病菌之一,加强耐药性监测,合理应用抗菌药物十分重要。

OBJECTIVE To investigate the change in antimicrobial resistance to Pseudomonas aeruginosa in our hospital from Jan 2005 to Dec 2006 and direct the using of drugs reasonably. METHODS P. aeruginosa was identified by API and VITEK2 system, and its antimicrobial resistance was determined by Kirby-Bauer method and VITEK2 system. The antimicrobial resistance rates were analyzed by WHONET5. 4 software. RESULTS The resistant rates of P. aeruginosa to SAM, CTX, and CRO were higher than 70%. The resistant rate to CIP was the lowest （about 30% or so）. CONCLUSIONS P. aeruginosa is still a major pathogenic bacterium in our hospital. It is very important to select antibiotics correctly according to the results of susceptibility tests.