Evidence map›Paper›PMID 22359616›Full record

ArticlePloS one2012

Rapid detection of carbapenem resistance in Acinetobacter baumannii using matrix-assisted laser desorption ionization-time of flight mass spectrometry.

Marie Kempf, Sofiane Bakour, Christophe Flaudrops, Meryem Berrazeg, Jean-Michel Brunel, Mourad Drissi, Esma Mesli, Abdelaziz Touati, Jean-Marc Rolain

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
8.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 154 citations in OpenAlex.

  1. Pooled it
  2. Colistin Resistance in Bacteria: Current Updates on Mechanism of Action and Combating Strategies.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2026
    Review
  3. Article
  4. Article
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  9. Article
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  11. Article
  12. Direct detection of intactClinical mass spectrometry (Del Mar, Calif.) · 2020
    Article
  13. Distribution of carbapenemase genes in clinical isolates ofThe Indian journal of medical research · 2020
    Article
  14. Article
  15. Article
  16. Detection of carbapenemase producers by matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF MS).European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2019
    Review
  17. Review
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  19. Review
  20. Performance Evaluation of the MBT STARFrontiers in microbiology · 2019
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 6 institutions in 2 countries.

Marie KempfAix-Marseille-Université, Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), CNRS-IRD-INSERM UMR 6236, Méditerranée Infection, Faculté de Médecine et de Pharmacie, Marseille, France.
Sofiane Bakour
Christophe Flaudrops
Meryem Berrazeg
Jean-Michel Brunel
Mourad Drissi
Esma Mesli
Abdelaziz Touati
Jean-Marc Rolain
Centre National de la Recherche Scientifique · FRUnité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes · FRUniversity of Abou Bekr Belkaïd · DZInserm · FRInstitut de Recherche pour le Développement · FRUniversity of Béjaïa · DZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rapid detection of carbapenem-resistant Acinetobacter baumannii strains is critical and will benefit patient care by optimizing antibiotic therapies and preventing outbreaks. Herein we describe the development and successful application of a mass spectrometry profile generated by matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) that utilized the imipenem antibiotic for the detection of carbapenem resistance in a large series of A. baumannii clinical isolates from France and Algeria. A total of 106 A. baumannii strains including 63 well-characterized carbapenemase-producing and 43 non-carbapenemase-producing strains, as well as 43 control strains (7 carbapenem-resistant and 36 carbapenem-sensitive strains) were studied. After an incubation of bacteria with imipenem for up to 4 h, the mixture was centrifuged and the supernatant analyzed by MALDI-TOF MS. The presence and absence of peaks representing imipenem and its natural metabolite was analyzed. The result was interpreted as positive for carbapenemase production if the specific peak for imipenem at 300.0 m/z disappeared during the incubation time and if the peak of the natural metabolite at 254.0 m/z increased as measured by the area under the curves leading to a ratio between the peak for imipenem and its metabolite being <0.5. This assay, which was applied to the large series of A. baumannii clinical isolates, showed a sensitivity of 100.0% and a specificity of 100.0%. Our study is the first to demonstrate that this quick and simple assay can be used as a routine tool as a point-of-care method for the identification of A. baumannii carbapenemase-producers in an effort to prevent outbreaks and the spread of uncontrollable superbugs.

Indexed as

Diagnostic Techniques and ProceduresDrug Resistance, BacterialSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationAcinetobacter baumanniiAcinetobacter InfectionsCarbapenemsHumansPoint-of-Care SystemsCarbapenems

Identifiers

PMID22359616
PMCPMC3280980
OpenAlexW2006973353

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.