Document Detail


A simple test for the detection of KPC and metallo-β-lactamase carbapenemase-producing Pseudomonas aeruginosa isolates with the use of meropenem disks supplemented with aminophenylboronic acid, dipicolinic acid and cloxacillin.
MedLine Citation:
PMID:  21689207     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Clin Microbiol Infect ABSTRACT: We evaluated the ability of the combination disk test (CDT) and the Modified Hodge Test (MHT) to discriminate between various carbapenemase-producing Pseudomonas aeruginosa isolates (KPC, n = 36; metallo-β-lactamase (MBL), n = 38) and carbapenemase non-producers (n = 75). For the CDT, the optimal inhibitor concentrations and cut-off values were: 600 μg of 3-aminophenylboronic acid (APB) per disk (an increment of ≥4 mm), 1000 μg of dipicolinic acid (DPA) per disk (an increment of ≥5 mm) and 3000 μg of cloxacillin per disk (an increment of ≥3 mm). APB had excellent sensitivity (97%) and specificity (97%) for the detection of KPC enzymes. DPA detected MBL enzymes with a sensitivity and specificity of 97% and 81%, respectively. The MHT resulted in a low sensitivity (78%) and specificity (57%). The CDT could be very useful in daily practice to provide fast and reliable detection of KPC and MBL carbapenemases among P. aeruginosa isolates.
Authors:
F Pasteran; O Veliz; D Faccone; L Guerriero; M Rapoport; T Mendez; A Corso
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-24
Journal Detail:
Title:  Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases     Volume:  -     ISSN:  1469-0691     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-6-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9516420     Medline TA:  Clin Microbiol Infect     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 European Society of Clinical Microbiology and Infectious Diseases. No claim to original US government works.
Affiliation:
Servicio Antimicrobianos, Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas (INEI) - ANLIS 'Dr Carlos G. Malbrán', Ministerio de Salud y Ambiente, Ciudad Autónoma de Buenos Aires, Argentina.
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