Evidence map›Paper›PMID 20157063›Full record

ArticleArchives of otolaryngology--head & neck surgery2010

Subglottic stenosis examined as a fibrotic response to airway injury characterized by altered mucosal fibroblast activity.

Tripti Singh, Vlad C Sandulache, Todd D Otteson, Mark Barsic, Edwin C Klein, Joseph E Dohar, Patricia A Hebda

Open access · greenAbstract read
In one paragraph

Article in Archives of otolaryngology--head & neck surgery, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 12% 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

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

  1. Pooled it
  2. Preclinical Vocal Fold and Airway Injury Models: A Scoping Review.Laryngoscope investigative otolaryngology · 2025
    Review
  3. Revision tracheal resection anastomosis for recurrent stenosis after airway surgeries: functional outcomes.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
  4. Article
  5. Article
  6. Review
  7. Serum interleukin 1β in patients with acquired laryngotracheal stenosis.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2022
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Post-intubation subglottic stenosis: aetiology at the cellular and molecular level.European respiratory review : an official journal of the European Respiratory Society · 2021
    Review
  13. [Risk factors affecting the surgical outcome of severe tracheal stenosis].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2021
    Article
  14. Review
  15. Observational
  16. Serial In-Office Intralesional Steroid Injections in Airway Stenosis.JAMA otolaryngology-- head & neck surgery · 2018
    Article
  17. Article
  18. Article
  19. Article
  20. 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

7 authors at 1 institution in 1 country.

Tripti SinghDepartment of Pediatric Otolaryngology, Children's Hospital of Pittsburgh, PA 15224, USA.
Vlad C Sandulache
Todd D Otteson
Mark Barsic
Edwin C Klein
Joseph E Dohar
Patricia A Hebda
Children's Hospital of Pittsburgh · US

Funding

Subglottic Stenosis and Laryngotracheal Mucosal HealingR01DC007437 · NIDCD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HEBDA, PATRICIA A · 2006 to 2009
$961k
NIDCD NIH HHS R01 DC007437
6 · The paper itself

Abstract

objectiveTo investigate the association between mucosal fibroblast activity and subglottic stenosis (SGS) development.

designProspective study of an animal model of SGS.

settingAcademic research laboratory. SUBJECTS: New Zealand white rabbits were assigned to either the cricothyroidotomy and carbon dioxide laser injury group or the cricothyroidotomy and silver nitrate injury group. Airways were excised for histologic analysis and the establishment of primary fibroblast cultures. Lesions from surgical excision of established SGS and subglottic tissue were used to analyze SGS recurrence.

interventionsThe subglottis was approached via cricothyroidotomy and was subjected to either carbon dioxide laser or silver nitrate injury before closure. The SGS lesions were excised at 8 to 10 weeks and were used to establish explants for fibroblast culture. The animals underwent recovery for an additional 14 days to follow recurrence of SGS. After 14 days, all the animals were killed humanely, and subglottic tissue was harvested for histologic evaluation. Rates of migration and contraction of SGS and normal airway fibroblasts were assayed using established in vitro methods under basal conditions and with prostaglandin E(2) treatment.

main outcome measuresFor in vivo studies, injury, healing, and scarring of the mucosa and cartilage were the primary measures. For cultured fibroblast experiments, cellular responses of fibroblasts from normal and stenosed mucosa were compared and contrasted.

resultsMucosal injury resulted in acute fibroplasia and chronic SGS, surgical excision of mature SGS at 8 weeks resulted in rapid recurrence of stenosis, and SGS-derived fibroblasts were relatively refractory to the effects of prostaglandin E(2) on migration and contraction.

conclusionsSubglottic stenosis represents a fibrotic airway repair process that involves fibroblasts that produce recurrent, excessive scar formation. We suggest that SGS development and recurrence may be partially dictated by altered fibroblast responsiveness to antifibroplastic signals during mucosal repair.

Indexed as

AnimalsCells, CulturedCicatrixDisease Models, AnimalFibroblastsFibrosisGlottisLaryngostenosisRabbitsRespiratory MucosaWound Healing

Identifiers

PMID20157063
PMCPMC3000122
OpenAlexW2148867964

What OpenQuestion holds

Textmetadata
LicenceTDM
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.