Laboratory Medicine ›› 2018, Vol. 33 ›› Issue (8): 716-721.DOI: 10.3969/j.issn.1673-8640.2018.08.011

• Orginal Article • Previous Articles     Next Articles

Infection status analysis of multi-drug resistant bacteria in Renmin Hospital of Wuhan University

GUO Jing, LI Congrong()   

  1. Department of Clinical Laboratory,Renmin Hospital of Wuhan University,Wuhan 430060,Hubei,China
  • Received:2017-06-16 Online:2018-08-10 Published:2018-09-07

Abstract:

Objective To study the distribution and drug resistance of multi-drug resistant(MDR) bacteria in Renmin Hospital of Wuhan University,and to provide a reference for using antibiotics rationally and controlling nosocomial infection.Methods The MDR bacteria isolated from Renmin Hospital of Wuhan University were analyzed retrospectively from March 2016 to March 2017.Results A total of 7 402 clinical isolates were collected. There were 1 701 isolates of MDR bacteria,and the determination rate was 22.99%. The top 7 MDR bacteria were extended-spectrum beta-lactamase-Escherichia coli(ESBL-Eco) accounting for 39.15%(666/1 701),carbapenem-resistant Acinetobacter baumannii(CRAB) accounting for 22.52%(382/1 701),methicillin-resistant Staphylococcus aureus(MRSA) accounting for 14.87%(253/1 701),extended-Spectrum beta-lactamase-Klebsiella pneumoniae(ESBL-Kpn)accounting for 7.34%(125/1 701),carbapenem-resistant Enterobacteriaceae(CRE) accounting for 7.35%(125/1 701),carbapenem-resistant Pseudomonas aeruginosa(CRPA) accounting for 6.46%(110/1 701) and vancomycin-resistant Enterococcus(VRE) accounting for 0.76%(13/1 701). The MDR bacteria were mainly distributed in general surgery,intensive medical department,neurology and respiratory medicine departments. Among 41.45% of sputum samples and 34.83% of midstream urine samples,MDR bacteria were found. The drug resistance rates of Escherichia coli to imipenem and meropenem were 1.43% and 1.31%,respectively. The drug resistance rates of Klebsiella pneumoniae to imipenem,meropenem and amikacin were 11.82%,11.82% and 10.52%,respectively. Except colistin,tigecycline and minocycline,the drug resistance rates of Acinetobacter baumannii to the other antibiotics were higher than 70%. The drug resistance rates of Pseudomonas aeruginosa to various antibiotics were lower than 23%. There were 8 isolates and 4 isolates of vancomycin- and teicoplanin-resistant Staphylococcus aureus and Enterococcus faecium,respectively. There was no vancomycin- and teicoplanin-resistant Enterococcus faecalis.Conclusions The status of MDR bacterium infection is grim,and it has become the main pathogen of nosocomial infection,so the drug resistance monitoring of MDR bacteria for the rational use of antibiotics and nosocomial infection control is of great significance.

Key words: Nosocomial infection, Multi-drug resistant bacterium, Drug resistance

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