近年来随着激素及广谱抗生素的广泛应用,临床引起院内获得性中心静脉导管感染逐年增加。大肠埃希菌是人类肠道中的正常菌群,其多见于ICU内,已成为ICU中心静脉感染的主要致病菌之一。本文对我院2001年2月至2006年8月ICU患者并发大肠埃希菌性中心静脉感染做相关危险因素研究及耐 In recent years, with the extensive use of hormones and broad-spectrum antibiotics, clinically-induced central venous catheter infections have been increasing year by year. Escherichia coli is a normal flora in human intestinal tract, which is more common in the ICU and has become one of the major pathogenic bacteria in central venous infection of ICU. This article on our hospital from February 2001 to August 2006 ICU patients with Escherichia coli central venous infection risk factors related to research and resistance