Monitoring and drug-resistance analysis of Pseudomonas aeruginosa for in-hospital lower respiratory infections

Objective:To investigate the current Pseudomonas aeruginosa infection in the Baoji Municipal Central Hospital with lower respiratory infections,and analyze and evaluate the reason of drug-resistance.Methods:A total of 86 bacteria strains isolated in sputum samples from patients with lower respiratory infection in our hospital from July 2007 to December 2007 were collected and analyzed.Gram-positive bacteria,Gram-negative bacteria and fungi were contrasted.The drug-resistance of Pseudomonas aeruginosa was determined.Results:Amongst the 86 bacteria strains,Gram-positive bacteria accounted for 33.7%,Gram-negative bacteria for 45.3% and fungi for 20.9%.The percentage of Pseudomonas aeruginosa infection was 14.0% in all of them.The drug-resistance of Pseudomonas aeruginosa was found to the antibiotics,such as ampicillin,ampicillin/sulbactam and cefarozime etc.Conclusion:The percentage of Pseudomonas aeruginosa infection in hospital is rather high,and the drug-resistance is very serious,which should be paid more attention in this field,and find out the methods to solve the probloms.