Back
Evaluation of the RAPIDEC® CARBA NP and β-CARBA® tests for rapid detection of Carbapenemase-producing Enterobacteriaceae.
Journal article

Evaluation of the RAPIDEC® CARBA NP and β-CARBA® tests for rapid detection of Carbapenemase-producing Enterobacteriaceae.

  • Mancini S Emerging Antibiotic Resistance Unit, Medical and Molecular Microbiology, Department of Medicine, Faculty of Science, University of Fribourg, Switzerland; INSERM European Unit (LEA/IAME Paris, France), University of Fribourg, Switzerland; National Reference Center for Emerging Antibiotic Resistance, Switzerland. Electronic address: stefano.mancini@unifr.ch.
  • Kieffer N Emerging Antibiotic Resistance Unit, Medical and Molecular Microbiology, Department of Medicine, Faculty of Science, University of Fribourg, Switzerland; INSERM European Unit (LEA/IAME Paris, France), University of Fribourg, Switzerland; National Reference Center for Emerging Antibiotic Resistance, Switzerland.
  • Poirel L Emerging Antibiotic Resistance Unit, Medical and Molecular Microbiology, Department of Medicine, Faculty of Science, University of Fribourg, Switzerland; INSERM European Unit (LEA/IAME Paris, France), University of Fribourg, Switzerland; National Reference Center for Emerging Antibiotic Resistance, Switzerland.
  • Nordmann P Emerging Antibiotic Resistance Unit, Medical and Molecular Microbiology, Department of Medicine, Faculty of Science, University of Fribourg, Switzerland; INSERM European Unit (LEA/IAME Paris, France), University of Fribourg, Switzerland; National Reference Center for Emerging Antibiotic Resistance, Switzerland; Institute of Microbiology, University of Lausanne and University Hospital Center, Lausanne, Switzerland.
  • 2017-05-24
Published in:
  • Diagnostic microbiology and infectious disease. - 2017
RAPIDEC CARBA NP® test
Rapid carbapenemase detection
β-CARBA® test
Bacteriological Techniques
Carbapenem-Resistant Enterobacteriaceae
Enterobacteriaceae
Microbial Sensitivity Tests
Sensitivity and Specificity
beta-Lactamases
English The analytical performances of the RAPIDEC CARBA NP® (bioMérieux) and the β-CARBA® (Bio-Rad) tests were evaluated for the rapid detection of any known type of carbapenemases in Enterobacteriaceae. An international collection of 149 enterobacterial isolates comprising 111 Carbapenemase-Producing Enterobacteriaceae (CPE) and 38 non-carbapenemase producers was used. CPE included 32 carbapenemase producers of class A (18 KPC-2, 1 FRI-1, 5 SME and 8 IMI), 33 of class B (13 NDM, 11 VIM and 9 IMP) and 46 of class D (15 OXA-48, 14 OXA-181, 10 OXA-204, 3 OXA-232 and 4 OXA-162). The RAPIDEC CARBA NP® and the β-CARBA® tests were performed in strict accordance to the manufacturer's instructions and results were read within 2 h and 30 min, respectively. RAPIDEC CARBA NP® detected 104/111 CPE isolates compared to 72/111 for the β-CARBA® test. The overall sensitivity and specificity were 93.7% and 100%, respectively, for the RAPIDEC CARBA NP® test, and 64.9% and 90%, respectively, for the β-CARBA® test. The β-CARBA® test failed to detect all the non-KPC class A carbapenemases (14/14) and most (24/31) of the OXA-48-like producers (OXA-162, OXA-181, OXA-204 and OXA-232), and detected 1/1 OXA-163 and 1/1 OXA-405 as carbapenemase producers whereas these enzymes are rather defined as non carbapenemases. RAPIDEC CARBA NP® test exhibited better performances than those of the β-CARBA® test and confirmed to be a reliable tool for the detection of CPE, especially for OXA-48-like producers.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://sonar.ch/global/documents/138954
Statistics
Document views: 35 File downloads: