Evidence map›Paper›PMID 25270532›Full record

ArticleDysphagia2015

The effect of bilateral superior laryngeal nerve lesion on swallowing: a novel method to quantitate aspirated volume and pharyngeal threshold in videofluoroscopy.

Peng Ding, George Shiu-Kai Fung, MingDe Lin, Shaina D Holman, Rebecca Z German

Abstract read
In one paragraph

Article in Dysphagia, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
0.7field-weighted citation impact, top 25% 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, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Research advances in dysphagia animal models.Animal models and experimental medicine · 2025
    Review
  4. Article
  5. The effects of simulated gastroesophageal reflux on infant pig oropharyngeal feeding physiology.American journal of physiology. Gastrointestinal and liver physiology · 2024
    Article
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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

5 authors at 4 institutions in 1 country.

Peng DingDepartment of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
George Shiu-Kai Fung
MingDe Lin
Shaina D Holman
Rebecca Z German
Johns Hopkins Medicine · USNortheast Ohio Medical University · USPhilips (United States) · USUniversity of Maryland, Baltimore · 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
Oral Sensation During Pharyngeal Swallowing in Infant MammalsF30DE021944 · NIDCR · UNIVERSITY OF MARYLAND BALTIMORE · PI HOLMAN, SHAINA DEVI · 2012 to 2015
$111k
NIDCD NIH HHS DC009980NIDCD NIH HHS R01 DC009980NIDCR NIH HHS F30 DE021944
6 · The paper itself

Abstract

The purpose was to determine the effect of bilateral superior laryngeal nerve (SLN) lesion on swallowing threshold volume and the occurrence of aspiration, using a novel measurement technique for videofluoroscopic swallowing studies (VFSS) in infant pigs. We used a novel radiographic phantom to assess volume of the milk containing barium from fluoroscopy. The custom made phantom was firstly calibrated by comparing image intensity of the phantom with known cylinder depths. Secondly, known volume pouches of milk in a pig cadaver were compared to volumes calculated with the phantom. Using these standards, we calculated the volume of milk in the valleculae, esophagus and larynx, for 205 feeding sequences from four infant pigs feeding before and after had bilateral SLN lesions. Swallow safety was assessed using the tested and validated IMPAS (Dysphagia 28(2):178-187, 2013). The log-linear correlation between image intensity values from the phantom filled with barium milk and the known phantom cylinder depths was strong (R (2) > 0.95), as was the calculated volumes of the barium milk pouches. The threshold volume of bolus in the valleculae during feeding was significantly larger after bilateral SLN lesion than in control swallows (p < 0.001). The IMPAS score increased in the lesioned swallows relative to the controls, indicating substantially impaired swallowing (p < 0.001). Bilateral SLN lesion dramatically increased the aspiration incidence and the threshold volume of bolus in valleculae. The use of this phantom permits quantification of the aspirated volume of fluid, allowing for more accurate 3D volume estimation from 2D X-ray in VFSS.

Indexed as

DeglutitionAnimalsCalibrationFemaleFluoroscopyLarynxSwineVideo Recording

Identifiers

PMID25270532
PMCPMC4351730
OpenAlexW2126034091

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.