Evidence map›Paper›PMID 26946303›Full record

ArticleEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2016

Haemophilus influenzae biofilm formation in chronic otitis media with effusion.

Helen Van Hoecke, Ann-Sophie De Paepe, Edward Lambert, Jonas D Van Belleghem, Piet Cools, Leen Van Simaey, Pieter Deschaght, Mario Vaneechoutte, Ingeborg Dhooge

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 43 citations in OpenAlex.

  1. Incidence and risk factors correlated with otitis media with effusion in pediatric patients with obstructive sleep apnea: a retrospective nationwide inpatient sample database study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Article
  2. Does Helicobacter pylori have a role in the pathogenesis of otitis media with effusion, or is it a fallacy??European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Article
  3. Article
  4. Article
  5. Fluoroquinolones and Biofilm: A Narrative Review.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  6. Review
  7. Gene Expression Regulation in Airway Pathogens: Importance for Otitis Media.Frontiers in cellular and infection microbiology · 2022
    Review
  8. Otitis media with effusion is not a sterile inflammatory process: scanning electron microscope evidence.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2021
    Article
  9. Chronic adenoiditis.The Journal of international medical research · 2020
    Article
  10. Bacterial aetiology of chronic otitis media with effusion in children - risk factors.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale · 2020
    Article
  11. Panel 8: Vaccines and immunology.International journal of pediatric otorhinolaryngology · 2020
    Review
  12. Article
  13. Review
  14. Review
  15. Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Direct Analysis of Pathogenic Structures Affixed to the Tympanic Membrane during Chronic Otitis Media.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2018
    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 2 institutions in 1 country.

Helen Van HoeckeDepartment of Otorhinolaryngology, Ghent University Hospital, De Pintelaan 185, 9000, Ghent, Belgium. helen.vanhoecke@ugent.be.
Ann-Sophie De PaepeFaculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
Edward LambertFaculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
Jonas D Van BelleghemLaboratory Bacteriology Research, Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
Piet CoolsLaboratory Bacteriology Research, Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
Leen Van SimaeyLaboratory Bacteriology Research, Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
Pieter DeschaghtLaboratory Bacteriology Research, Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
Mario VaneechoutteLaboratory Bacteriology Research, Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
Ingeborg DhoogeDepartment of Otorhinolaryngology, Ghent University Hospital, De Pintelaan 185, 9000, Ghent, Belgium.
Ghent University · BEGhent University Hospital · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Otitis media with effusion (OME) is a highly prevalent disease in children, but the exact pathogenesis and role of bacteria are still not well understood. This study aimed to investigate the presence of otopathogenic bacteria in the middle ear effusion (MEE) and adenoid of children with chronic OME (COME), and to investigate in vivo whether these bacteria, especially Haemophilus influenzae, are organized as a biofilm in the middle ear fluid. MEE and adenoid samples were collected from 21 patients with COME. Extensive bacterial culturing and genotyping was performed on all middle ear and adenoid samples. Fluorescence in situ hybridization (FISH) and confocal laser scanning microscopy (CLSM) was used to visualize possible biofilm structures for a selection of middle ear effusion samples. 34 MEE samples were collected from 21 patients of which 64.7 % were culture positive for bacteria and 47.0 % were culture positive for Haemophilus influenzae, Moraxella catarrhalis, Staphylococcus aureus and/or Streptococcus pneumoniae. All 21 adenoid samples were culture positive for one or more of these four otopathogens. H. influenzae (35.3 %) and S. pneumoniae (76.2 %) were the most frequently cultured bacteria in the MEE and adenoid samples, respectively. The same bacterial species was found in MEE and adenoid for 84.6 % of the patients and in 81.2 % of the cases where the same species was found in more than one site it involved the same bacterial genotype. FISH and CLSM demonstrated the presence of H. influenzae specific biofilm structures in five of the eight culture positive MEEs that were tested, but in none of the two culture negative MEEs. The findings in this study indicate that the adenoid acts as a reservoir for bacteria in MEE and confirms that biofilms, in at least half of the cases consisting of H. influenzae, are indeed present in the MEE of children with COME. Biofilms may thus play a crucial role in the pathogenesis of COME, which is important in the understanding of this disease and the development of potential future treatment options.

Indexed as

AdenoidsBiofilmsChildChild, PreschoolChronic DiseaseEar, MiddleFemaleGenotypeHaemophilus influenzaeHumansInfantIn Situ Hybridization, FluorescenceMaleMicroscopy, ConfocalMoraxella catarrhalisOtitis Media with EffusionBiofilmChronic otitis media with effusion (COME)Confocal scanning laser microscopy (CLSM)Fluorescent in situ hybridization (FISH)Haemophilus influenzae

Identifiers

PMID26946303
OpenAlexW2289416321

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.