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242380

Verification of direct methods for detection of carbapenemase producing <i>Enterobacteriaceae</i> from blood cultures

Article

Last updated: 25 Dec 2024

Subjects

-

Tags

Antimicrobial resistance

Abstract

Background: The aim of the study was to evaluate blood modified carbapenem inactivation method (mCIM) and automated susceptibility via VITEK2 compact system directly from positive blood culture bottles. Methods: The study was carried out using 54 strains positive for carbapenemase genes (OXA-48 type, KPC-type, NDM-type, and VIM-type) by multiplex PCR and 30 strains negative for these genes as controls, these strains were inoculated into blood culture bottles and then tested phenotypically for carbapenem resistance by mCIM and Vitek2 AST directly from the blood culture bottle. Results: MCIM was positive for all tested CPE strains and negative for the control strains with a 100% sensitivity, specificity and agreement with the PCR results. While vitek2 system had a sensitivity of 96%. Conclusion: Both methods save time when performed directly from the blood culture bottle that should guide appropriate administration of antimicrobials targeting bloodstream infections caused by carbapenemase producing Enterobacteriaceae. The mCIM is superior in being inexpensive requires basic reagents available in all microbiology laboratories with minimal processing compared to other tests and gives positive results with different  carbapenemase classes.

DOI

10.21608/mid.2022.136762.1310

Keywords

mCIM, Multiplex PCR, Carbapenemase, resistance, Blood cuture

Authors

First Name

marwa

Last Name

meheissen

MiddleName

-

Affiliation

Department of Medical Microbiology and Immunology, Faculty of Medicine, Alexandria University, Alexandria

Email

marwa.meheissen@alexmed.edu.eg

City

-

Orcid

0000-0002-7122-4760

First Name

Hadir

Last Name

Okasha

MiddleName

Ahmed Said

Affiliation

Department of Medical Microbiology and Immunology, Faculty of Medicine, Alexandria University, Alexandria, Egypt

Email

hadir.okasha@alexmed.edu.eg

City

-

Orcid

-

Volume

3

Article Issue

3

Related Issue

35766

Issue Date

2022-08-01

Receive Date

2022-05-02

Publish Date

2022-08-01

Page Start

687

Page End

692

Print ISSN

2682-4132

Online ISSN

2682-4140

Link

https://mid.journals.ekb.eg/article_242380.html

Detail API

https://mid.journals.ekb.eg/service?article_code=242380

Order

20

Type

Original Article

Type Code

1,157

Publication Type

Journal

Publication Title

Microbes and Infectious Diseases

Publication Link

https://mid.journals.ekb.eg/

MainTitle

Verification of direct methods for detection of carbapenemase producing <i>Enterobacteriaceae</i> from blood cultures

Details

Type

Article

Created At

22 Jan 2023