Prvi opis karbapenemaze u osječko-baranjskoj županiji u unesenom izolatu enterobactera cloacae in vitro osjetljivom na karbapeneme [First report of carbapenemases in Osijek-Baranja County in imported Enterobacter cloacae isolate in vitro susceptible to carbapenems]

Bedenić, Branka and Zujić Atalić, Vlasta and Bogdan, Maja and Beader, Nataša and Godič Torkar, Karmen and Ižaković, Senka (2015) Prvi opis karbapenemaze u osječko-baranjskoj županiji u unesenom izolatu enterobactera cloacae in vitro osjetljivom na karbapeneme [First report of carbapenemases in Osijek-Baranja County in imported Enterobacter cloacae isolate in vitro susceptible to carbapenems]. Liječnički vjesnik, 137 (1-2). pp. 17-21. ISSN 0024-3477

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Abstract

Carbapenems are often the only therapeutic option to treat infections caused by multidrug-resistant Gram-negative bacteria. Emergence of carbapenemases in the isolates of Enterobacteriaceae limits therapeutic options. Carbapenem-resistant Enterobacteriaceae have emerged since 2008 throughout Croatia. In Osijek-Baranja County carbapenem-resistant strains of Enterobacteriaceae were not reported until 2013. The first carbapenem-resistant strain (Enterobacter cloacae) was identified in August 2013 in a patient previously hospitalized at University Hospital Center Zagreb for the treatment of acute lymphoblastic leukemia. Molecular analysis revealed the production of VIM-1 metallo-beta-lactamase (MBL). In spite of the metallo-beta-lactamase production the strain was not resistant to imipenem and meropenem in disk-diffusion and microdilution test. This report shows that routine susceptibility testing carried out in most laboratories does not necessarily detect carbapenemase production in Enterobacteriaceae. Since these enzymes are encoded on mobile genetic elements there is a risk of horizontal spread to other enterobacterial isolates and the development of hospital outbreaks.

Abstract in Croatian

Karbapenemi su često posljednja terapijska opcija za liječenje infekcija uzrokovanih multirezistentnim gram-negativnim bakterijama. Pojava karbapenemaza u izolatima enterobakterija ograničava terapijske mogućnosti. Izolati enterobakterija rezistentni na karbapenem pojavili su se od 2008. diljem Hrvatske. U Osječko-baranjskoj županiji do 2013. godine nije zapažena pojava izolata rezistentnih na karbapenem iz porodice Enterobacteriaceae. Prvi takav izolat (Enterobacter cloacae) identificiran je u kolovozu 2013. godine u bolesnice koja je prethodno boravila u KBC-u Zagreb radi liječenja akutne limfocitne leukemije. Molekularnim metodama dokazana je produkcija VIM-1 metalo-b-laktamaze (MBL). Unatoč produkciji metalo-b-laktamaze izolat nije pokazivao rezistenciju na imipenem i meropenem u disk-difuzijskom i dilucijskom testu. Iz ovog prikaza proizlazi da rutinsko testiranje osjetljivosti koje se provodi u većini mikrobioloških laboratorija ne mora uvijek detektirati karbapenemazu u enterobakterija. Budući da su metalo-b-laktamaze kodirane prenosivim genskim elementima, postoji opasnost od horizontalnog širenja na druge bakterijske izolate enterobakterija i mogućnost pojave bolničkih epidemija.

Item Type: Article
MeSH: Bacterial Proteins/metabolism ; Carbapenems/pharmacology ; Croatia ; Cross Infection/microbiology ; Drug Resistance, Microbial ; Enterobacter cloacae/drug effects ; Enterobacter cloacae/enzymology ; Enterobacteriaceae Infections/microbiology ; Hospitals, University ; Humans ; Microbial Sensitivity Tests ; beta-Lactamases/biosynthesis ; beta-Lactamases/metabolism ; Substances
Departments: Katedra za medicinsku mikrobiologiju i parazitologiju
Depositing User: Anja Majstorović
Status: Published
Creators:
CreatorsEmail
Bedenić, BrankaUNSPECIFIED
Zujić Atalić, VlastaUNSPECIFIED
Bogdan, MajaUNSPECIFIED
Beader, NatašaUNSPECIFIED
Godič Torkar, KarmenUNSPECIFIED
Ižaković, SenkaUNSPECIFIED
Date: January 2015
Date Deposited: 13 Mar 2019 09:39
Last Modified: 21 Jul 2020 07:29
Subjects: /
Related URLs:
URI: http://medlib.mef.hr/id/eprint/3100

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