[Prevalence of extended-spectrum beta-lactamase producing Escherichia coli in pediatric patients in China]. 2008

Li Wang, and Yong-hong Yang, and Quan Lu, and Yi Wang, and Yuan Chen, and Li Deng, and Qiu-lian Deng, and Hong Zhang, and Chuan-qing Wang, and Lan Liu, and Xi-wei Xu, and Xu-zhuang Shen
Microbiology and Immunology Department, Pediatric Research Institute, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China.

OBJECTIVE To study the drug resistance profiles of extended spectrum beta lactamase (ESBL) producing Escherichia coli (E. coli) and provide guidance for pediatric clinical prescription. METHODS 5127 strains of ESBL producing E. coli were isolated from 5 children's hospitals in Beijing, Shanghai, Chongqing, and Guangzhou. The minimum inhibitory concentration (MIC) values of 349 strains to 9 antibiotics most in use in pediatrics were measured with agar dilution method. RESULTS The prevalent rate of ESBL producing of E. coli was 46.7%. The resistant rates to ampicillin/clavulanic acid, cefotaxime, ceftazidime, and cefepime were 23.1%, 67.2%, 24.5%, and 48.4% respectively, and the intermediate rates were 38.5%, 26.4%, 5.7%, and 19.1% respectively. The resistant rate to amikacin was 5.4%. All the strains were susceptible to imipenem. The MIC90 values of ampicillin, cefotaxime, cefepime, ciprofloxacin, and gentamicin were 256 mg/L or higher. There were differences in the resistance profile to ampicillin/clavulanic acid, cefepime, ciprofloxacin, and gentamicin among different regions. CONCLUSIONS ESBL is extensively prevalent among the E. coli strains isolated from the pediatric clinic that are resistant to most antimicrobial agents except imipenem and amikacin. Regional difference exists in drug resistance to some agents exist.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008826 Microbial Sensitivity Tests Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses). Bacterial Sensitivity Tests,Drug Sensitivity Assay, Microbial,Minimum Inhibitory Concentration,Antibacterial Susceptibility Breakpoint Determination,Antibiogram,Antimicrobial Susceptibility Breakpoint Determination,Bacterial Sensitivity Test,Breakpoint Determination, Antibacterial Susceptibility,Breakpoint Determination, Antimicrobial Susceptibility,Fungal Drug Sensitivity Tests,Fungus Drug Sensitivity Tests,Sensitivity Test, Bacterial,Sensitivity Tests, Bacterial,Test, Bacterial Sensitivity,Tests, Bacterial Sensitivity,Viral Drug Sensitivity Tests,Virus Drug Sensitivity Tests,Antibiograms,Concentration, Minimum Inhibitory,Concentrations, Minimum Inhibitory,Inhibitory Concentration, Minimum,Inhibitory Concentrations, Minimum,Microbial Sensitivity Test,Minimum Inhibitory Concentrations,Sensitivity Test, Microbial,Sensitivity Tests, Microbial,Test, Microbial Sensitivity,Tests, Microbial Sensitivity
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D002681 China A country spanning from central Asia to the Pacific Ocean. Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D004927 Escherichia coli Infections Infections with bacteria of the species ESCHERICHIA COLI. E coli Infections,E. coli Infection,Infections, E coli,Infections, Escherichia coli,E coli Infection,E. coli Infections,Escherichia coli Infection,Infection, E coli,Infection, E. coli,Infection, Escherichia coli
D006776 Hospitals, Pediatric Special hospitals which provide care for ill children. Pediatric Hospitals,Hospital, Pediatric,Pediatric Hospital
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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