Objective:To investigate the distribution change and drug resistance of common and special pathogens in low respiratory infection for providing evidence of clinical anti-infection therapy. Methods:The results of 13 463 sputum cultures tested in inpatients during the period 2005~2006 and the drug susceptibility of pathogens were analyzed by the software WHONET5.3. Results:Among all pathogens in low respiratory tract infection,gram-negative bacteria accounted for 51.1% while fungi accounted for 33.7%. Candida albicans stood the first, and Pseudomonas aeruginosa,Acinetobacter sp,Klebsiella pneumoniae were common pathogens. The rate of Acinetobacter sp,Escherichia coli in 2006 increased significantly compared with that in 2005. Among all gram-negative bacteria,ESBLs-producing strains accounted for 8.3% and had high resistance to the third and forth generation cephalosporins and fluoroquinolones. The differences of ESBLs-producing rates of Escherichia coli and Klebsiella pneumoniae between the two years were significant. MRS accounted for 59% of all staphylococci,resisting to macrolids,cephalosporins and fluoroquinolones. The rate of MRS was significantly higher in 2006 than in 2005. Conclusion:the percentage of multidrug resistant pathogens in low respiratory tract infection increased with time. Carbopenems were recommended for ESBLs-producing pathogens and Vancomycin for MRS.
王艳丽,黄〓茂,王文晶,梅亚宁.下呼吸道感染病原菌变迁及耐药状况分析[J].南京医科大学学报(自然科学版英文版),2008,28(3):321-326.