Evidence map›Paper›PMID 25568431›Full record

ArticleJournal of clinical microbiology2015

Validation of a new Aspergillus real-time PCR assay for direct detection of Aspergillus and azole resistance of Aspergillus fumigatus on bronchoalveolar lavage fluid.

Ga-Lai M Chong, Wendy W J van de Sande, Gijs J H Dingemans, Giel R Gaajetaan, Alieke G Vonk, Marie-Pierre Hayette, Dennis W E van Tegelen, Guus F M Simons, Bart J A Rijnders

Registry-linked trialOpen access · bronzeAbstract readValidation Study
In one paragraph

Article in Journal of clinical microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03121235 (PCR Based Detection of Azole Resistance in A. Fumigatus to Improve Patient Outcome. A Prospective Multicenter Observational Study.), which is not on this map. Cited by 77 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 4 pooled it
14.0field-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.

NCT03121235 completednot on this mapstarted 2017, after this paper: background citation

PCR Based Detection of Azole Resistance in A. Fumigatus to Improve Patient Outcome. A Prospective Multicenter Observational Study.

TypeobservationalSponsorErasmus Medical CenterRan2017 to 2022Enrolled320ConditionsAspergillosis, Invasive PulmonaryArmsPCR based detection of azole resistance in A. fumigatus
3 · Its place in the literature

Who cites it

77 citing papers in PubMed, 4 syntheses or guidelines pooled it, 146 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Aspergillus Polymerase Chain Reaction: Systematic Review of Evidence for Clinical Use in Comparison With Antigen Testing.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2015
    Pooled it
  5. Review
  6. Review
  7. Molecular mechanisms drivingFrontiers in molecular biosciences · 2026
    Review
  8. Article
  9. Review
  10. Insights intoJournal of fungi (Basel, Switzerland) · 2024
    Article
  11. Low specificity ofPractical laboratory medicine · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. Clinical Impact of Polymerase Chain Reaction-Based Aspergillus and Azole Resistance Detection in Invasive Aspergillosis: A Prospective Multicenter Study.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
    Article
  16. Review
  17. COVID-19 associated mold infections: Review of COVID-19 associated pulmonary aspergillosis and mucormycosis.Journal of microbiology, immunology, and infection = Wei mian yu gan ran za zhi · 2023
    Review
  18. Invasive Pulmonary Aspergillosis.Journal of fungi (Basel, Switzerland) · 2023
    Review
  19. Article
  20. Article

17 more citing papers are in PubMed but not listed here.

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 2 institutions in 2 countries.

Ga-Lai M ChongDepartment of Internal Medicine, Infectious Diseases, Erasmus Medical Center, Rotterdam, the Netherlands g.chong@erasmusmc.nl.
Wendy W J van de SandeMedical Microbiology and Infectious Diseases, Erasmus Medical Center, Rotterdam, the Netherlands.
Gijs J H DingemansPathoNostics B.V., Maastricht, the Netherlands.
Giel R GaajetaanPathoNostics B.V., Maastricht, the Netherlands.
Alieke G VonkMedical Microbiology and Infectious Diseases, Erasmus Medical Center, Rotterdam, the Netherlands.
Marie-Pierre HayetteDepartment of Clinical Microbiology, University Hospital of Liège (CHU), Liège, Belgium.
Dennis W E van TegelenPathoNostics B.V., Maastricht, the Netherlands.
Guus F M SimonsPathoNostics B.V., Maastricht, the Netherlands.
Bart J A RijndersDepartment of Internal Medicine, Infectious Diseases, Erasmus Medical Center, Rotterdam, the Netherlands.
Erasmus MC · NLUniversity of Liège · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Azole resistance in Aspergillus fumigatus is increasingly reported. Here, we describe the validation of the AsperGenius, a new multiplex real-time PCR assay consisting of two multiplex real-time PCRs, one that identifies the clinically relevant Aspergillus species, and one that detects the TR34, L98H, T289A, and Y121F mutations in CYP51A and differentiates susceptible from resistant A. fumigatus strains. The diagnostic performance of the AsperGenius assay was tested on 37 bronchoalveolar lavage (BAL) fluid samples from hematology patients and 40 BAL fluid samples from intensive care unit (ICU) patients using a BAL fluid galactomannan level of ≥1.0 or positive culture as the gold standard for detecting the presence of Aspergillus. In the hematology and ICU groups combined, there were 22 BAL fluid samples from patients with invasive aspergillosis (IA) (2 proven, 9 probable, and 11 nonclassifiable). Nineteen of the 22 BAL fluid samples were positive, according to the gold standard. The optimal cycle threshold value for the presence of Aspergillus was <36. Sixteen of the 19 BAL fluid samples had a positive PCR (2 Aspergillus species and 14 A. fumigatus samples). This resulted in a sensitivity, specificity, and positive and negative predictive values of 88.9%, 89.3%, 72.7%, and 96.2%, respectively, for the hematology group and 80.0%, 93.3%, 80.0%, and 93.3%, respectively, in the ICU group. The CYP51A real-time PCR confirmed 12 wild-type and 2 resistant strains (1 TR34-L98H and 1 TR46-Y121F-T289A mutant). Voriconazole therapy failed for both patients. The AsperGenius multiplex real-time PCR assay allows for sensitive and fast detection of Aspergillus species directly from BAL fluid samples. More importantly, this assay detects and differentiates wild-type from resistant strains, even if BAL fluid cultures remain negative.

Indexed as

Antifungal AgentsAspergillusAzolesBronchoalveolar Lavage FluidCytochrome P-450 Enzyme SystemFemaleFungal ProteinsHumansInvasive Pulmonary AspergillosisMaleMicrobiological TechniquesMolecular Diagnostic TechniquesMultiplex Polymerase Chain ReactionMutant ProteinsMutation, MissensePredictive Value of TestsAntifungal AgentsAzolescytochrome P-450 CYP51A, AspergillusCytochrome P-450 Enzyme SystemFungal ProteinsMutant Proteins

Identifiers

PMID25568431
PMCPMC4390672
OpenAlexW2039167468

What OpenQuestion holds

Textmetadata
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Registered trials

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.