Bacteria distribution and drug resistance in intensive care unit

Objective To study the alteration of microbial population distribution in intensive care unit (ICU) and to provide reference for clinical drug administration. Methods Clinical specimens from Donghua Hospital during January 2006 to December 2011 were collected and cultured using conventional microbiological method. Then these bacteria were identified and the drug resistance tests were performed using automatic VITEK32 microbial analyzer and disc diffusion method (K-B method). Results A total of 1 531 strains of bacteria were separated, including Gram negative (G super(-)) bacillus 868 strains (56.7%), Gram positive bacteria (G super(+)) 381 strains (24.9%), and fungi 225 strains (14.7%). The most popular G super(-) bacillus were Klebsiella pneumoniae (13.3%, 204 strains), Acinetobacter baumannii (12.1%, 185 strains), Escherichia coli (9.7%, 148 strains), Pseudomonas aeruginosa strains (7.8%, 120 strains), and Stenotrophomonas maltophilia (3.0%, 46 strains), et al. The most popular G super(+) bacteria were Stap