The Open Microbiology Journal




ISSN: 1874-2858 ― Volume 13, 2019
RESEARCH ARTICLE

Genetic Study of Extended Spectrum Beta-Lactamase and Carbapenemase Producing Escherichia Coli Causing Sepsis among Egyptian Children



Maysaa Zaki1, Hanan El-Halaby2, *, Eman Elmansoury3, Mayada Zeid2, Khaled Khaled3, Manal Nomir4
1 Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
2 Pediatric Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
3 Microbiology and Immunology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
4 Clinical pathology Department, Students’ Hospital, Mansoura University, Mansoura, Egypt

Abstract

Background:

Treatment failure of sepsis caused by Escherichia coli (E. Coli) is a leading cause of death of infants and children in intensive care units.

Objective:

To detect the prevalence of Extended-Spectrum Beta-Lactamase (ESBL) and carbapenemase-genes between E. coli isolates from infants and children with septicemia and to identify their antibiotic sensitivity pattern.

Methods:

This is a cross-sectional study performed on 88 patients with sepsis. The isolated E. coli were identified by Gram stain and biochemically by the Microscan automated system. ESBL and carbapenemase producing E. coli were isolated on double disk diffusion and EDTA double disk, respectively. Polymerase chain reaction for ESBL and carbapenemase producing E. coli genes were performed. Bacterial susceptibility to antibiotics was tested. The initial results were measured through the 30-days of hospital admission. IRB approved the study.

Results:

Of 88 patients with sepsis, 49 and 30 strains were ESBL producing and carbapenemase producing E. coli; respectively. Neither risk factors for infection nor clinical picture can differentiate between ESBL and carbapenemase producing E. coli. The most frequently detected gene of ESBL producing E. coli was SHV, it was more sensitive to Piperacillin/Tazobactam (90%) and cefepime (86.7%) while for carbapenemase-producing E. coli; IMP was the most frequent, its sensitivity was high to Piperacillin/Tazobactam and Ciprofloxacin (52.6% each).

Conclusion:

The commonest gene of ESBL producing E. coli is SHV whereas for carbapenemase-producing E. coli is IMP. Piperacillin/Tazobactam is the candidate drug to start in children with septicemia and suspected ESBL or carbapenemase-producing E. coli infection.

Keywords: Beta-lactamase, Carbapenemase, E. coli, Children, Sepsis, Egypt.


Article Information


Identifiers and Pagination:

Year: 2019
Volume: 13
First Page: 128
Last Page: 137
Publisher Id: TOMICROJ-13-128
DOI: 10.2174/1874285801913010128

Article History:

Received Date: 14/02/2019
Revision Received Date: 05/05/2019
Acceptance Date: 07/05/2019
Electronic publication date: 31/05/2019
Collection year: 2019

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© 2019 Zaki et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


* Address correspondence to this author at the Pediatric Department, Faculty of Medicine, Mansoura University, Mansoura Gomheria street 35516, Egypt;
Tel: 00201006465350; Emails: Hanan_elhalaby@yahoo.com
and Hanan_elhalaby@mans.edu.eg



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