Evidence map›Paper›PMID 36000036›Full record

ArticleLaryngoscope investigative otolaryngology2022

Augmentation and vocal fold biomechanics in a recurrent laryngeal nerve injury model.

Solaleh Miar, Benjamin Walters, Gabriela Gonzales, Ronit Malka, Amelia Baker, Teja Guda, Gregory R Dion

Open access · goldAbstract read
In one paragraph

Article in Laryngoscope investigative otolaryngology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

7 citing papers in PubMed, 9 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Solaleh MiarDepartment of Biomedical Engineering and Chemical Engineering The University of Texas San Antonio Texas USA.
Benjamin WaltersDepartment of Otolaryngology-Head and Neck Surgery Brooke Army Medical Center JBSA Fort Sam Houston Texas USA.
Gabriela GonzalesDepartment of Biomedical Engineering and Chemical Engineering The University of Texas San Antonio Texas USA.
Ronit MalkaDepartment of Otolaryngology-Head and Neck Surgery Brooke Army Medical Center JBSA Fort Sam Houston Texas USA.ORCID https://orcid.org/0000-0002-9864-2698
Amelia BakerDepartment of Anesthesiology Brooke Army Medical Center JBSA Fort Sam Houston Texas USA.
Teja GudaDepartment of Biomedical Engineering and Chemical Engineering The University of Texas San Antonio Texas USA.ORCID https://orcid.org/0000-0002-3218-2916
Gregory R DionDepartment of Biomedical Engineering and Chemical Engineering The University of Texas San Antonio Texas USA.ORCID https://orcid.org/0000-0003-4389-3104
Brooke Army Medical Center · USOak Ridge Associated Universities · USThe University of Texas at San Antonio · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives/hypothesis: Composite vocal fold (VF) biomechanical data are lacking for augmentation after recurrent laryngeal nerve (RLN) injury. We hypothesize resulting atrophy decreases VF stiffness and augmentation restores native VF biomechanics. Methods: Sixteen Yorkshire Crossbreed swine underwent left RLN transection and were observed or underwent carboxymethylcellulose (CMC) or calcium hydroxyapatite (CaHa) augmentation at 2 weeks. Biomechanical measurements (structural stiffness, displacement, and maximum load) were measured at 4 or 12 weeks. Thyroarytenoid (TA) muscle cross-sectional area was quantified and compared with two-way ANOVA with Tukey's post hoc test. Results: After 4 weeks, right greater than left structural stiffness (mean ± SE) was observed (49.6 ± 0.003 vs. 28.4 ± 0.002 mN/mm), left greater than right displacement at 6.3 mN (0.54 ± 0.01 vs. 0.46 ± 0.01 mm, Conclusions: VF biomechanical properties match TA muscle atrophy in this model, and both CMC and CaHa injection demonstrated improved biomechanical properties and slower TA atrophy compared to the uninjured side. Taken together, these data provide a quantifiable biomechanical basis for early injection laryngoplasty to improve dysphonia and potentially improve healing in reversible unilateral vocal fold atrophy. Level of evidence: N/A.

Indexed as

augmentationbiomechanicsmuscle atrophyrecurrent laryngeal nerve injuryswine

Identifiers

PMID36000036
PMCPMC9392410
OpenAlexW4284886766

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.