Rapid susceptibility profiling of carbapenem-resistant Klebsiella pneumonia

© 2017 The Author(s). The expanding global distribution of multi-resistant Klebsiella pneumoniae demands faster antimicrobial susceptibility testing (AST) to guide antibiotic treatment. Current ASTs rely on time-consuming differentiation of resistance and susceptibility after initial isolation of b...

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Main Authors: Mulroney, K., Hall, J., Huang, X., Turnbull, E., Bzdyl, N., Chakera, Aron, Naseer, U., Corea, E., Ellington, M., Hopkins, K., Wester, A., Ekelund, O., Woodford, N., Inglis, T.
Format: Journal Article
Published: Nature Publishing Group 2017
Online Access:http://hdl.handle.net/20.500.11937/63339
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author Mulroney, K.
Hall, J.
Huang, X.
Turnbull, E.
Bzdyl, N.
Chakera, Aron
Naseer, U.
Corea, E.
Ellington, M.
Hopkins, K.
Wester, A.
Ekelund, O.
Woodford, N.
Inglis, T.
author_facet Mulroney, K.
Hall, J.
Huang, X.
Turnbull, E.
Bzdyl, N.
Chakera, Aron
Naseer, U.
Corea, E.
Ellington, M.
Hopkins, K.
Wester, A.
Ekelund, O.
Woodford, N.
Inglis, T.
author_sort Mulroney, K.
building Curtin Institutional Repository
collection Online Access
description © 2017 The Author(s). The expanding global distribution of multi-resistant Klebsiella pneumoniae demands faster antimicrobial susceptibility testing (AST) to guide antibiotic treatment. Current ASTs rely on time-consuming differentiation of resistance and susceptibility after initial isolation of bacteria from a clinical specimen. Here we describe a flow cytometry workflow to determine carbapenem susceptibility from bacterial cell characteristics in an international K. pneumoniae isolate collection (n = 48), with a range of carbapenemases. Our flow cytometry-assisted susceptibility test (FAST) method combines rapid qualitative susceptible/non-susceptible classification and quantitative MIC measurement in a single process completed shortly after receipt of a primary isolate (54 and 158 minutes respectively). The qualitative FAST results and FAST-derived MIC (MIC FAST ) correspond closely with broth microdilution MIC (MIC BMD , Matthew's correlation coefficient 0.887), align with the international AST standard (ISO 200776-1; 2006) and could be used for rapid determination of antimicrobial susceptibility in a wider range of Gram negative and Gram positive bacteria.
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spelling curtin-20.500.11937-633392018-02-06T06:23:29Z Rapid susceptibility profiling of carbapenem-resistant Klebsiella pneumonia Mulroney, K. Hall, J. Huang, X. Turnbull, E. Bzdyl, N. Chakera, Aron Naseer, U. Corea, E. Ellington, M. Hopkins, K. Wester, A. Ekelund, O. Woodford, N. Inglis, T. © 2017 The Author(s). The expanding global distribution of multi-resistant Klebsiella pneumoniae demands faster antimicrobial susceptibility testing (AST) to guide antibiotic treatment. Current ASTs rely on time-consuming differentiation of resistance and susceptibility after initial isolation of bacteria from a clinical specimen. Here we describe a flow cytometry workflow to determine carbapenem susceptibility from bacterial cell characteristics in an international K. pneumoniae isolate collection (n = 48), with a range of carbapenemases. Our flow cytometry-assisted susceptibility test (FAST) method combines rapid qualitative susceptible/non-susceptible classification and quantitative MIC measurement in a single process completed shortly after receipt of a primary isolate (54 and 158 minutes respectively). The qualitative FAST results and FAST-derived MIC (MIC FAST ) correspond closely with broth microdilution MIC (MIC BMD , Matthew's correlation coefficient 0.887), align with the international AST standard (ISO 200776-1; 2006) and could be used for rapid determination of antimicrobial susceptibility in a wider range of Gram negative and Gram positive bacteria. 2017 Journal Article http://hdl.handle.net/20.500.11937/63339 10.1038/s41598-017-02009-3 Nature Publishing Group unknown
spellingShingle Mulroney, K.
Hall, J.
Huang, X.
Turnbull, E.
Bzdyl, N.
Chakera, Aron
Naseer, U.
Corea, E.
Ellington, M.
Hopkins, K.
Wester, A.
Ekelund, O.
Woodford, N.
Inglis, T.
Rapid susceptibility profiling of carbapenem-resistant Klebsiella pneumonia
title Rapid susceptibility profiling of carbapenem-resistant Klebsiella pneumonia
title_full Rapid susceptibility profiling of carbapenem-resistant Klebsiella pneumonia
title_fullStr Rapid susceptibility profiling of carbapenem-resistant Klebsiella pneumonia
title_full_unstemmed Rapid susceptibility profiling of carbapenem-resistant Klebsiella pneumonia
title_short Rapid susceptibility profiling of carbapenem-resistant Klebsiella pneumonia
title_sort rapid susceptibility profiling of carbapenem-resistant klebsiella pneumonia
url http://hdl.handle.net/20.500.11937/63339