Susceptibility and prevalence of blaKPC gene in carbapenem-resistant Klebsiella pneumoniae
10.16718/j.1009-7708.2017.03.014
- VernacularTitle:碳青霉烯类耐药肺炎克雷伯菌药物敏感性及blaKPC基因检出率
- Author:
Yingmin BI
;
Zhen SHEN
;
Dong DONG
;
Shi WU
;
Fupin HU
;
Fan YANG
- Keywords:
carbapenem-resistant;
Klebsiella pneumoniae;
antimicrobial susceptibility;
blaKPC gene
- From:
Chinese Journal of Infection and Chemotherapy
2017;17(3):298-302
- CountryChina
- Language:Chinese
-
Abstract:
Objective To examine the antimicrobial susceptibility and prevalence of blaKPC gene in carbapenem-resistant Klebsiella pneumoniae (CRKP) strains isolated in Huashan Hospital,Fudan University.Methods The CRKP strains isolated in Huashan Hospital from January to December of 2014 were included in this study.The MICs of antibiotics were determined using CLSI broth dilution method.The blaKPC gene was amplified by polymerase chain reaction (PCR).Results A total of 205 CRKP strains were isolated,mainly from respiratory tract (76.1％,156/205) and urine specimens (18.5％,38/205).Antimicrobial susceptibility test indicated that CRKP isolates had higher resistance rates (85％-100％) to the antimicrobial agents except colistin (1.5％),tigecycline (0.5％),trimethoprim-sulfamethoxazole (51.0％) and amikacin (74.9％).Most (87.8％,180/205) of the CRKP strains were positive for blaKPC gene.Conclusions CRKP are mostly isolated from patients with lower respiratory tract infection and/or urinary tract infection in Huashan Hospital.The strains were highly resistant to the antibacterial agents tested except colistin and tigecycline.Production of KPC-type carbapenemase is the common mechanism of carbapenem resistance in these K.pneumoniae isolates.
