Bacterial Distribution and Resistance of the Common Infectious Gram-negative Bacilli in ICU?押 An Analysis

Objective To investigate the outbreak and resistance of gram-negative bacilli in ICUs. Methods Bacterial isolated from patients in nanhua hospital- from Jan 2003 to Sep 2005. Were identified by scepter and API identified tests. Bacterial durg susceptibility test was performed on strains using standard Kirby-Bauer method in accordance with guidelines of NCCLS. Results 236 strains gram-negative bacilli and the most common pathogens of them were Pseudomonas aeruginosa(74 strains- 31.36%)- Klebsiella Pneumoniae(42 strains- 17.8%)-Escherichia(34 strains- 14.41%)- Acinetobacter(32 strains- 13.56%) and Enterobacter Cioacae(19 strains- 8.05%). in our analysis- the highest susceptible to gram-negative bacilli was imipenem- while the lowest was ampicllin. Most of gram-negative bacilli in ICUs were seriously resistant- Antibiotics should be used reasonably and all-round supervision of drug resistance should also be strengthened.