Abstract:

Objective: To evaluate the detection rate and antimicrobial resistance of non-fermenters in ICU. Methods: The bacteria were identified by VITEK-32, and the antimicrobial susceptibility tests were done according to disc agar diffusion methods. Results: In 560 ICU specimens, there were 335 strains of hospital infection separated strains. Among them, 181 strains of non-fermentative bacteria were detected. The non-zymophyte's positive detection rate was 32.32%, pseudomonas aeruginosa was the most common bacterium (65 strains, 19.40%), the next was acinetobacter baumannii (53 strains,15.82%), pseudomonas cepacia (31 strains, 9.25%) and stenotrophomonas maltophilia (28 strains, 8.36%). The most common specimen source was sputum, venous duct, venous blood,
hydrothorax and ascites. P. aeruginosa, A. baumannii, P. cepacia and S. maltophilia showed high antimicrobial resistance. Conclusion: The detection rate of non-fermenters was high in the nosocomial infection of ICU patients with high antimicrobial resistance, the drugs should be chosen according to the results of the antimicrobial susceptibility test.

Key words: ICU, bacterial infection, non-fermentative bacteria, drug resistance, microorganism