Evidence map›Paper›PMID 21632901›Full record

ArticleJournal of clinical microbiology2011

Comparative evaluation of combined-disk tests using different boronic acid compounds for detection of klebsiella pneumoniae carbapenemase-producing enterobacteriaceae clinical isolates.

Athanassios Tsakris, Katerina Themeli-Digalaki, Aggeliki Poulou, Georgia Vrioni, Evangelia Voulgari, Vasiliki Koumaki, Antonella Agodi, Spyros Pournaras, Danai Sofianou

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Rapid LC-MS/MS detection of different carbapenemase types in carbapenemase-producing Enterobacterales.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2022
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  4. Detection of IncN-pST15 one-health plasmid harbouring blaTransboundary and emerging diseases · 2021
    Article
  5. Article
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  7. Article
  8. Carbapenemase-producing Enterobacteriaceae.Seminars in respiratory and critical care medicine · 2015
    Review
  9. Article
  10. Article
  11. Article
  12. 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 5 institutions in 2 countries.

Athanassios TsakrisDepartment of Microbiology, Medical School, University of Athens, 11527 Athens, Greece. atsakris@med.uoa.gr
Katerina Themeli-Digalaki
Aggeliki Poulou
Georgia Vrioni
Evangelia Voulgari
Vasiliki Koumaki
Antonella Agodi
Spyros Pournaras
Danai Sofianou
National and Kapodistrian University of Athens · GRHippocration General Hospital · GRTzaneion General Hospital · GRUniversity of Catania · ITUniversity of Thessaly · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The accurate phenotypic detection of Klebsiella pneumoniae carbapenemase (KPC)-producing Enterobacteriaceae is an increasing necessity worldwide. We evaluated the performance of boronic acid combined-disk tests using as substrate imipenem or meropenem and as inhibitor of KPC production 300 μg aminophenylboronic acid (APBA), 600 μg APBA, or 400 μg phenylboronic acid (PBA). Tests were considered positive when an increase in the growth-inhibitory zone around a carbapenem disk with KPC inhibitor was 5 mm or greater of the growth-inhibitory zone diameter around the disk containing carbapenem alone. The comparison of the combined-disk tests was performed with 112 genotypically confirmed KPC-possessing Enterobacteriaceae isolates. To measure the specificity of the tests, 127 genotypically confirmed KPC-negative Enterobacteriaceae isolates that were nonsusceptible to at least one carbapenem were chosen for testing. Using disks containing imipenem without and with 300 μg APBA, 600 μg APBA, or 400 μg PBA, 72, 92, and 112 of the KPC producers, respectively, gave positive results (sensitivities, 64.3%, 82.1%, and 100%, respectively). Using disks containing meropenem without and with 300 μg APBA, 600 μg APBA, or 400 μg PBA, 87, 108, and 112 of the KPC producers, respectively, gave positive results (sensitivities, 77.7%, 96.4%, and 100%, respectively). Among KPC producers, the disk potentiation tests using meropenem and PBA demonstrated the largest differences in inhibition zones (P < 0.001). All combined-disk tests correctly identified 124 of the 127 non-KPC producers (specificity, 97.6%). This comparative study showed that PBA is the most effective inhibitor of KPC enzymes, and its use in combined-disk tests with meropenem may give the most easily interpreted results.

Indexed as

Anti-Bacterial AgentsBacterial Proteinsbeta-Lactamasesbeta-LactamsBoronic AcidsEnterobacteriaceaeEnterobacteriaceae InfectionsGenotypeHumansImipenemMeropenemMicrobial Sensitivity TestsPhenotypeSensitivity and SpecificityThienamycinsAnti-Bacterial AgentsBacterial Proteinsbeta-Lactamasesbeta-LactamsBoronic AcidscarbapenemaseImipenemMeropenemThienamycins

Identifiers

PMID21632901
PMCPMC3147720
OpenAlexW2100790584

What OpenQuestion holds

Textmetadata
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.