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Comparison of ceftazidime-avibactam susceptibility testing methods against OXA-48-like carrying Klebsiella blood stream isolates

  • Burcu Isler
  • , Cansel Vatansever
  • , Berna Özer
  • , Güle Çınar
  • , Abdullah Tarık Aslan
  • , Adam Stewart
  • , Peter Simos
  • , Caitlin Falconer
  • , Michelle J. Bauer
  • , Brian Forde
  • , Patrick Harris
  • , Funda Şimşek
  • , Necla Tülek
  • , Hamiyet Demirkaya
  • , Şirin Menekşe
  • , Halis Akalin
  • , İlker İnanç Balkan
  • , Mehtap Aydın
  • , Elif Tükenmez Tigen
  • , Safiye Koçulu Demir
  • Mahir Kapmaz, Şiran Keske, Özlem Doğan, Çiğdem Arabacı, Serap Yağcı, Gülşen Hazırolan, Veli Oğuzalp Bakır, Mehmet Gönen, Neşe Saltoğlu, Alpay Azap, Özlem Azap, Murat Akova, Önder Ergönül, David L. Paterson, Füsun Can
  • University of Queensland
  • Princess Alexandra Hospital
  • Koc University
  • Ankara University
  • Hacettepe University
  • University of Health Sciences
  • Atilim University
  • Baskent University
  • Koşuyolu Kartal Heart Training and Research Hospital
  • Uludag University
  • Istanbul University - Cerrahpaşa
  • Marmara University
  • Istanbul Bilim University
  • American Hospital
  • Ankara Numune Education and Research Hospital

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Ceftazidime-avibactam exhibits good in vitro activity against carbapenem resistant Klebsiella carrying OXA-48-like enzymes. We tested two hundred unique carbapenem resistant Klebsiella blood stream isolates (71% with single OXA-48-like carbapenemases, including OXA-48, n = 62; OXA-232, n = 57; OXA-244, n = 17; OXA-181, n = 5) that were collected as part of a multicentre study against ceftazidime-avibactam using Etest (bioMérieux, Marcyl’Étoile, France), 10/4 μg disc (Thermo Fisher) and Sensititre Gram Negative EURGNCOL Plates (Lyophilized panels, Sensititre, Thermo Fisher) with the aim of comparing the performances of the Etest and disc to that of Sensititre. Ceftazidime-avibactam MIC50/90 was 2/>16 mg/L for the entire collection and was 2/4 mg/L for single OXA-48-like producers. Categorical and essential agreements between the Etest and Sensititre were 100% and 97%, respectively. Categorical agreement between the disc and Sensititre was 100%. Etest and 10/4 μg discs are suitable alternatives to Sensititre for ceftazidime-avibactam sensitivity testing for OXA-48-like producers.

Original languageEnglish
Article number115745
JournalDiagnostic Microbiology and Infectious Disease
Volume104
Issue number1
DOIs
Publication statusPublished - Sept 2022

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • Carbapenem resistant Klebsiella
  • Ceftazidime-avibactam
  • Etest
  • OXA-232
  • OXA-48-like
  • Sensititre plate

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