Pathogens from 1 151 cases of urine culture and their antibiotic resistance profile
- VernacularTitle:1151例中段尿培养病原菌构成与耐药性分析
- Author:
Hui CAI
- Publication Type:Journal Article
- Keywords:
urine culture;
pathogen;
antimicrobial agent;
resistance
- From:
Chinese Journal of Infection and Chemotherapy
2015;(1):38-42
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the pathogens and antibiotic resistance profile in patients with urinary tract infections who were treated from 2011 to 2013 to provide evidence for rational use of antimicrobial agents.Methods SIEMENS MicroScan WalkAway 96 Plus system or API system was used for identification of bacteria and fungi.Antimicrobial susceptibility testing was conducted by disk diffusion method.WHONET 5.6 software was used for data analysis.Results A total of 344 (29.9%) strains of pathogens were detected from 1 151 midstream urine culture specimens,of which 76.5% (263/344)were gram negative bacteria,including E.coli (53.2%,183/344),K.pneumoniae (9.6%,33/344),Proteus (6.1%,21/344),and P . aeruginosa (3.5%,12/344).About 23.5% (81/344)of the isolates were gram-positive bacteria,including Enterococcus faecalis (4.9%,17/344)and coagulase-negative Staphylococcus (4.4%,15/344).ESBLs were produced in 51.9% of the E. coli isolates and 63.6% of the K.pneumoniae isolates.ESBLs-producing strains showed significantly higher resistance rates to cephalosporins,quinolones,tetracyclines,sulfonamides and other antimicrobial agents than non-ESBLs-producing strains (P <0.05).Enterobacteriaceae isolates were highly sensitive to carbapenems (90.5%-100% sensitive).P .aeruginosa strains were relatively sensitive to ciprofloxacin,amikacin and meropenem (83.3%).Gram-positive cocci remained highly sensitive to antimicrobial agents.Regular monitoring and timely analysis of the pathogens of urinary tract infections and their resistance profile are of great importance to rational use of antimicrobial agents.
