Abstract
We assessed the ability of three commercial systems to infer carbapenem resistance mechanisms in 39 carbapenemase-producing and 16 other carbapenem-resistant Enterobacteriaceae. The sensitivity/specificity values for "flagging" a likely carbapenemase were 100%/0% (BD Phoenix), 82 to 85%/6 to 19% (MicroScan), and 74%/38% (Vitek 2), respectively. OXA-48 producers were poorly detected, but all systems reliably detected isolates with KPC and most with metallo-carbapenemases.
Publication types
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Comparative Study
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Evaluation Study
MeSH terms
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Anti-Bacterial Agents / pharmacology*
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Automation / methods*
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Bacterial Proteins / metabolism*
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Carbapenems / pharmacology*
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Enterobacteriaceae / drug effects*
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Enterobacteriaceae / enzymology
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Humans
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Microbial Sensitivity Tests / methods
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Sensitivity and Specificity
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beta-Lactam Resistance*
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beta-Lactamases / metabolism*
Substances
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Anti-Bacterial Agents
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Bacterial Proteins
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Carbapenems
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beta-Lactamases
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carbapenemase