运用Cox-Staurt趋势检验分析医院感染铜绿假单胞菌耐药趋势

目的研究医院感染铜绿假单胞菌流行病学特征和耐药趋势。方法采用VITEK-2Compact自动化微生物分析系统对2008-2010年医院感染患者送检标本进行细菌鉴定和耐药性检测,并用Cox-Staurt趋势检验分析耐药趋势。结果 2008-2010年医院感染铜绿假单胞菌分离率为18.78%,为检出细菌首位,且呈上升趋势,其主要分布在干部保健特诊科、重症医学科、血液科;铜绿假单胞菌对头孢曲松、磺胺甲噁唑/甲氧苄啶、头孢唑林、头孢替坦、氨苄西林的总耐药率>70.0%,对妥布霉素、庆大霉素、哌拉西林、哌拉西林/他唑巴坦、左氧氟沙星、环丙沙星、头孢他啶、头孢吡肟、亚胺培南、氨曲南的总耐药率<30.0%;Cox-Staurt趋势检验分析,铜绿假单胞菌对氨苄西林、头孢曲松、头孢唑林、头孢替坦、亚胺培南的耐药率呈上升趋势,而对哌拉西林、哌拉西林/他唑巴坦、头孢吡肟、头孢他啶、氨曲南、庆大霉素、妥布霉素、环丙沙星、左氧氟沙星和磺胺甲噁唑/甲氧苄啶的耐药率无上升趋势。结论铜绿假单胞菌引起的医院感染越来越严重,应定期进行细菌耐药性监测,以指导临床合理使用抗菌药物,预防控制耐药菌株的产生和流行。

Cox-Staurt trend test applied for drug resistance tendency of Pseudomonas aeruginosa causing nosocomial infection

OBJECTIVE To study epidemiologic feature and drug resistance tendency of Pseudomonas aeruginosa isolated from nosocomial infection patients.METHODS The specimens of nosocomial infection patients from 2008 to 2010 were applied with VITEK-2 COMPACT system for bacteria identification and antimicrobial resistance test,then analyzed by Cox-Staurt trend test.RESULTS The isolating rate of P.aeruginosa isolated from nosocomial infection patients was 18.78%,which was at the first place of detection bacteria and in t...