医院感染病原体分布及耐药性分析

目的探讨2007-2009年医院感染病原体的分布及其耐药性,为临床合理应用抗菌药物提供依据。方法对临床分离的2741株病原体构成及其耐药情况进行分析。结果共检出2741株病原体,革兰阴性菌占45.57%,革兰阳性菌占36.08%,但革兰阳性菌引起医院感染的比例逐年升高;感染部位以呼吸道、泌尿道为主;易感因素以抗菌药物使用、侵入性操作常见;革兰阳性菌对常用抗菌药耐药率高,但对万古霉素敏感;常见革兰阴性菌对一、二、三代头孢菌素耐药率较高,对氨基糖苷类、碳青霉烯类、β-内酰胺酶抑制剂耐药率较低。结论医院感染监控应从感染科室、感染部位、易感因素等多方面进行,减少侵入性操作,合理使用抗菌药物。

Distribution of pathogenic bacteria causing nosocomial infections and drug resistance

OBJECTIVE To investigate the distribution of hospital pathogens and associated drug resistance in recent 3 years,thereby providing rational basis for the clinical options of antibiotics.METHODS Data of 2741 strains of bacteria separated from 2007 to 2009 in our hospital were retrospectively reviewed.RESULTS A total of 2741 strains of microorganisms were detected.The results suggested that the G-bacteria remained to be the major pathogen in our hospital.However,the hospital infection by G+ bacteria showed an...