Evidence map›Paper›PMID 27873091›Full record

ArticleDysphagia2017

Pre-pharyngeal Swallow Effects of Recurrent Laryngeal Nerve Lesion on Bolus Shape and Airway Protection in an Infant Pig Model.

Francois D H Gould, B Yglesias, J Ohlemacher, R Z German

Abstract read
In one paragraph

Article in Dysphagia, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
7.9field-weighted citation impact, top 3% 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

26 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Research advances in dysphagia animal models.Animal models and experimental medicine · 2025
    Review
  4. Article
  5. Eliciting and Characterizing Porcine Vocalizations: When Pigs Fly.Journal of voice : official journal of the Voice Foundation · 2024
    Article
  6. Article
  7. Impact of volume and rate of milk delivery on coordination of respiration and swallowing in infant pigs.Journal of experimental zoology. Part A, Ecological and integrative physiology · 2023
    Article
  8. The effect of stiffness and hole size on nipple compression in infant suckling.Journal of experimental zoology. Part A, Ecological and integrative physiology · 2023
    Article
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  11. Article
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  15. Article
  16. Review
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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

4 authors at 1 institution in 1 country.

Francois D H GouldDepartment of Anatomy and Neurobiology, Northeast Ohio Medical University, Post Box 95, Rootstown, OH, 44272, USA. fgould@neomed.edu.
B YglesiasDepartment of Anatomy and Neurobiology, Northeast Ohio Medical University, Post Box 95, Rootstown, OH, 44272, USA.
J OhlemacherDepartment of Anatomy and Neurobiology, Northeast Ohio Medical University, Post Box 95, Rootstown, OH, 44272, USA.
R Z GermanDepartment of Anatomy and Neurobiology, Northeast Ohio Medical University, Post Box 95, Rootstown, OH, 44272, USA.
Northeast Ohio Medical University · US

Funding

Dysphagia and Recovery After Vagal or Laryngeal Nerve InjuryR01DC009980 · NIDCD · NORTHEAST OHIO MEDICAL UNIVERSITY · PI GERMAN, REBECCA Z · 2010 to 2014
$2.0M
NIDCD NIH HHS R01 DC009980
6 · The paper itself

Abstract

Recurrent laryngeal nerve (RLN) damage in infants leads to increased dysphagia and aspiration pneumonia. Recent work has shown that intraoral transport and swallow kinematics change following RLN lesion, suggesting potential changes in bolus formation prior to the swallow. In this study, we used geometric morphometrics to understand the effect of bolus shape on penetration and aspiration in infants with and without RLN lesion. We hypothesized (1) that geometric bolus properties are related to airway protection outcomes and (2) that in infants with RLN lesion, the relationship between geometric bolus properties and dysphagia is changed. In five infant pigs, dysphagia in 188 swallows was assessed using the Infant Mammalian Penetration-Aspiration Scale (IMPAS). Using images from high-speed VFSS, bolus shape, bolus area, and tongue outline were quantified digitally. Bolus shape was analyzed using elliptical Fourier analysis, and tongue outline using polynomial curve fitting. Despite large inter-individual differences, significant within individual effects of bolus shape and bolus area on airway protection exist. The relationship between penetration-aspiration score and both bolus area and shape changed post lesion. Tongue shape differed between pre- and post-lesion swallows, and between swallows with different IMPAS scores. Bolus shape and area affect airway protection outcomes. RLN lesion changes that relationship, indicating that proper bolus formation and control by the tongue require intact laryngeal sensation. The impact of RLN lesion on dysphagia is pervasive.

Indexed as

AnimalsAnimals, NewbornDeglutitionDeglutition DisordersLaryngeal Nerve InjuriesPneumonia, AspirationSwineAspirationDeglutitionDeglutition disordersInfantOro-pharyngeal pathophysiologyRecurrent laryngeal nerve

Identifiers

PMID27873091
PMCPMC5420465
OpenAlexW2549467569

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.