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Chinese Journal of Infection and Chemotherapy ; (6): 140-143, 2017.
Artigo em Chinês | WPRIM | ID: wpr-511188

RESUMO

Objective To analyze the antibiotic resistance of pathogenic bacteria recovered from bronchial secretions by bronchofiberscope in bronchiectasis patients complicated with infection for improving antibacterial therapy. Methods A total of 97 bronchiectasis patients complicated with infection treated in Liyuan Hospital during the period from June 2013 to December 2015 were included in this analysis. The pathogens were recovered from bronchial secretions by bronchofiberscope and subjected to antimicrobial susceptibility testing by Kirby-Bauer disc method. The data were analyzed with WHONET 5.5 software. Results Pathogenic organisms were isolated from 53 (54.6%) of the 97 patients, including 49 (92.4%) strains of gram negative bacilli, mainly Pseudomonas aeruginosa, followed by Acinetobacter baumannii, Klebsiella pneumoniae, 3 (5.7%) strains of?gram?positive?cocci,?specifically?2?strains?of?S. aureus and 1 strain of S. pneumoniae, and 1 (1.9%) strain of Candida albicans. Antimicrobial susceptibility testing showed that most P. aeruginosa isolates (>71.8%) were susceptible to tobramycin, amikacin,cefepime, and aztreonam, but 100% resistant to levofloxacin. More A. baumannii isolates were susceptible to tobramycin and amikacin (both 85.7%), followed by imipenem (>42.9%). More than half (>50%) of the K. pneumoniae isolates were resistant to cefotaxime, gentamycin, ciprofloxacin, and levofloxacin.Conclusions Gram negative bacilli are dominant in the pathogenic organisms recovered from bronchial secretions in bronchiectasis patients complicated with infection. Most of the pathogens are relatively susceptible to tobramycin and amikacin, but resistant to ciprofloxacin?and?levofloxacin.

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