1
|
Bouslah Z. Carba NP test for the detection of carbapenemase-producing Pseudomonas aeruginosa. Med Mal Infect 2020; 50:466-479. [PMID: 31899068 DOI: 10.1016/j.medmal.2019.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/30/2019] [Accepted: 12/03/2019] [Indexed: 10/25/2022]
Abstract
INTRODUCTION The Carba NP test is a biochemical chromogenic assay developed to detect carbapenemase activity. Variable performance has been reported according to the type of carbapenemase and bacterial species involved. We aimed to describe the benefit of the Carba NP test and its commercial version, the RAPIDEC® CARBA NP, to detect carbapenemase-producing Pseudomonas aeruginosa. METHODS PubMed and ScienceDirect databases were searched. The following data was collected from each included study: research protocol, molecular profile of the tested strains, and sensitivity and specificity of the test used to detect carbapenemase-producing P. aeruginosa. RESULTS Thirty-four studies were included. The most frequently tested strains were metallo-beta-lactamase producers. The pooled sensitivity to detect carbapenemase-producing P. aeruginosa with the original Carba NP test, the Clinical and Laboratory Standards Institute (CLSI) Carba NP test, and the RAPIDEC® CARBA NP was 92%, 95%, and 96%, respectively. The pooled specificity was 99% with the original and the CLSI Carba NP tests, and 92% with the RAPIDEC® CARBA NP. Several studies evaluated modified versions of the Carba NP test to detect carbapenemase-producing P. aeruginosa, with reported sensitivity and specificity exceeding 90% in most cases. CONCLUSION The Carba NP test allows for fast screening and easy handling as well as optimal performance to detect carbapenemase-producing P. aeruginosa. These findings should be confirmed by further studies including a larger cohort of isolates and various types of carbapenemases, mainly non-metallo-beta-lactamases.
Collapse
Affiliation(s)
- Z Bouslah
- Faculté de médecine de Tunis, université de Tunis El Manar, 15, rue Djebel Lakhdhar, 1007 La Rabta, Tunis, Tunisie.
| |
Collapse
|
2
|
Gautier G, Guillard T, Podac B, Bercot B, Vernet-Garnier V, de Champs C. Detection of different classes of carbapenemases: Adaptation and assessment of a phenotypic method applied to Enterobacteriaceae, Pseudomonas aeruginosa and Acinetobacter baumannii, and proposal of a new algorithm. J Microbiol Methods 2018; 147:26-35. [PMID: 29486226 DOI: 10.1016/j.mimet.2018.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/22/2018] [Accepted: 02/22/2018] [Indexed: 10/18/2022]
Abstract
A new phenotypic method for detecting carbapenemases has been adapted (assembling of two MAST® kits, including one that contains faropenem to which a temocillin disk has been added) then assessed using 101 bacterial strains (Enterobacteriaceae with assays on Pseudomonas aeruginosa and Acinetobacter baumannii) including 62 which produce genetically identified carbapenemases. Concerning Carbapenemase-Producing Enterobacteriaceae (CPE), there is 100% sensitivity for Klebsiella pneumoniae carbapenemase (KPC, Ambler class A) and OXA-48 (Ambler class D), and 91% for metallo-beta-lactamase (MBL, Ambler class B), with a 97% sensitivity for all carbapenemases, with a specificity of 100%. The test is also efficient for detecting Pseudomonas aeruginosa carbapenemases (sensitivity between 82 and 100% and 100% specificity). The major innovation is the combined use of faropenem and temocillin for reliable detection (excellent performance with 100% sensitivity and specificity) of OXA-48. This study has led to the development of a new algorithm to detect the different classes of carbapenemases, for first-line diagnosis, by combining this modified MAST® test with immunochromatographic methods and molecular biology techniques.
Collapse
Affiliation(s)
- Guillaume Gautier
- Bacteriology-Virology-Hygiene Department, Bacteriology Unit, Robert Debré University Hospital, avenue du général Koenig, 51092 Reims Cedex, France; Medical Biology Laboratory, Microbiology Department, Bacteriology Unit, William Morey General Hospital, 4 rue capitaine Drillien, 71321 Chalon-sur-Saône Cedex, France.
| | - Thomas Guillard
- Bacteriology-Virology-Hygiene Department, Bacteriology Unit, Robert Debré University Hospital, avenue du général Koenig, 51092 Reims Cedex, France; Research Unit EA 4687 SFR Cap-Santé (FED 4231), Acquired Resistance in Enterobacteriaceae, Reims Champagne-Ardenne University, 51 rue Cognacq-Jay, 51095 Reims Cedex, France.
| | - Bianca Podac
- Medical Biology Laboratory, Microbiology Department, Bacteriology Unit, William Morey General Hospital, 4 rue capitaine Drillien, 71321 Chalon-sur-Saône Cedex, France.
| | - Béatrice Bercot
- AP-HP, Saint-Louis-Lariboisière-Fernand-Widal Hospital Group, Laboratory of Bacteriology, associated for the National Reference Center for gonococci, 1 avenue Claude Vellefaux, 75010 Paris, France; IAME, UMR 1137, INSERM, Paris Diderot University, 16 rue Henri Huchard, 75890 Paris Cedex 18, France.
| | - Véronique Vernet-Garnier
- Bacteriology-Virology-Hygiene Department, Bacteriology Unit, Robert Debré University Hospital, avenue du général Koenig, 51092 Reims Cedex, France; Research Unit EA 4687 SFR Cap-Santé (FED 4231), Acquired Resistance in Enterobacteriaceae, Reims Champagne-Ardenne University, 51 rue Cognacq-Jay, 51095 Reims Cedex, France.
| | - Christophe de Champs
- Bacteriology-Virology-Hygiene Department, Bacteriology Unit, Robert Debré University Hospital, avenue du général Koenig, 51092 Reims Cedex, France; Research Unit EA 4687 SFR Cap-Santé (FED 4231), Acquired Resistance in Enterobacteriaceae, Reims Champagne-Ardenne University, 51 rue Cognacq-Jay, 51095 Reims Cedex, France.
| |
Collapse
|
3
|
Akhi MT, Khalili Y, Ghotaslou R, Kafil HS, Yousefi S, Nagili B, Goli HR. Carbapenem inactivation: a very affordable and highly specific method for phenotypic detection of carbapenemase-producing Pseudomonas aeruginosa isolates compared with other methods. J Chemother 2016; 29:144-149. [PMID: 27443547 DOI: 10.1080/1120009x.2016.1199506] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This investigation was undertaken to compare phenotypic and molecular methods for detection of carbapenemase-producing Pseudomonas aeruginosa. A total of 245 non-duplicated isolates of P. aeruginosa were collected from hospitalized patients. Disc diffusion method was used to identify carbapenem-resistant bacteria. Three phenotypic methods, including Modified Hodge Test (MHT), Modified Carba NP (MCNP) test and Carbapenem Inactivation Method (CIM) were used for investigation of carbapenemase production. In addition, polymerase chain reaction (PCR) was used to detect carbapenemase encoding genes. Of 245 P. aeruginosa isolates investigated, 121 isolates were carbapenem-resistant. Among carbapenem-resistant isolates, 40, 39 and 35 isolates exhibited positive results using MHT, MCNP test and CIM, respectively. PCR indicated the presence of carbapenemase genes in 35 of carbapenem-resistant isolates. MHT showed low sensitivity and specificity for carbapenemase detection among P. aeruginosa isolates in comparison to PCR. CIM was most affordable and highly specific than MCNP test compared with the molecular method.
Collapse
Affiliation(s)
- Mohammad Taghi Akhi
- a Immunology Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,b Faculty of Medicine, Department of Microbiology , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Younes Khalili
- a Immunology Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,b Faculty of Medicine, Department of Microbiology , Tabriz University of Medical Sciences , Tabriz , Iran.,e Social Security Organization, Emam Reza Hospital , Urmia , Iran
| | - Reza Ghotaslou
- b Faculty of Medicine, Department of Microbiology , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Hossein Samadi Kafil
- b Faculty of Medicine, Department of Microbiology , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Saber Yousefi
- c Faulty of Medicine, Department of Microbiology and Virology , Urmia University of Medical Sciences , Urmia , Iran
| | - Behroz Nagili
- d Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Hamid Reza Goli
- b Faculty of Medicine, Department of Microbiology , Tabriz University of Medical Sciences , Tabriz , Iran
| |
Collapse
|
4
|
Rapidec Carba NP Test for Rapid Detection of Carbapenemase Producers. J Clin Microbiol 2015; 53:3003-8. [PMID: 26085619 DOI: 10.1128/jcm.00977-15] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 06/14/2015] [Indexed: 11/20/2022] Open
Abstract
Performances of the Rapidec Carba NP test (bioMérieux) were evaluated for detection of all types of carbapenemases in Enterobacteriaceae, Acinetobacter baumannii, and Pseudomonas aeruginosa. In less than 2 h after sample preparation, it showed a sensitivity and specificity of 96%. This ready-to-use test is well adapted to the daily need for detection of carbapenemase producers in any laboratory worldwide.
Collapse
|