Different antibiotic resistance profile of clinical gram negative isolates from blood culture between adults and pediatric patients in Chongqing, 2015-2017
10.16718/j.1009-7708.2019.01.012
- VernacularTitle:2015-2017年重庆地区儿童和成人血培养分离革兰阴性菌分布及耐药性分析
- Author:
Haofeng XU
1
;
Tian TIAN
;
Shuangshuang YANG
;
Shan SUN
;
Jide SUN
Author Information
1. 重庆医科大学附属第一医院检验科
- Keywords:
blood culture;
gram negative bacilli;
antibiotic resistance;
adult;
pediatrics
- From:
Chinese Journal of Infection and Chemotherapy
2019;19(1):64-70
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the age difference of gram negative isolates(GNB)from blood culture and antibiotic resistance profile between children and adults. Methods Age difference of pathogen distribution of GNB isolated from blood culture during 2015-2017 were retrospectively analyzed. WHONET 5.6 and Graphpad Prism 6 were used to perform Chi-square test on the pathogen proportion and antibiotic resistance rate. Results A total of 20 145 bacterial strains were isolated in Chongqing from 2015 to 2017. The top three strains of GNB were E. coli(56.7％, 6 688/11 799), K. pneumoniae(19.6％, 2 308/11 799), and P. aeruginosa(4.4％, 522/11 799). The resistant rate of E. coli to carbapenems was less than 1％. The resistant rate of K. pneumoniae to carbapenems was about 5％, while the resistant rate of S. marcescens was approximately 9％, similar to E. cloacae. The overall resistance rates of E. coli from adult patients to most antiobiotic agents were significantly higher than those of children, but the overall resistance rate of K. pneumoniae from children was higher than those of adults. The drug resistance rate of A. baumannii was higher than P. aeruginosa. A. baumannii isolates from adult patients were highly resistant to all drugs tested and more resistant than those from pediatric patients. Conclusions Majority of GNB strains isolated from blood culture were E. coli and K. pneumoniae, for which carbapenems are still active. More attention should be paid to carbapenem-resistant K. pneumoniae from children and A. baumannii from adults. National surveillance of nosocomial bloodstream infection should be highly evaluated.
