Evidence map›Paper›PMID 31643091›Full record

ArticleThe Laryngoscope2020

Effect of Vocal Fold Implant Placement on Depth of Vibration and Vocal Output.

Simeon L Smith, Ingo R Titze, Claudio Storck, Ted Mau

Abstract read
In one paragraph

Article in The Laryngoscope, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
  2. Infraglottal Medialization: Increasing Vocal Fold Stiffness Gradient for Improved Vocal Efficiency.Journal of voice : official journal of the Voice Foundation · 2024
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Medialization Laryngoplasty: A Review for Speech-Language Pathologists.Journal of speech, language, and hearing research : JSLHR · 2021
    Review
  8. 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

4 authors.

Simeon L SmithNational Center for Voice and Speech, University of Utah, Salt Lake City, Utah, U.S.A.
Ingo R TitzeNational Center for Voice and Speech, University of Utah, Salt Lake City, Utah, U.S.A.
Claudio StorckDepartment of Otorhinolaryngology-Head and Neck Surgery, Division of Phoniatrics, University Hospital Basel, Basel, Switzerland.ORCID 0000-0003-2187-8181
Ted MauClinical Center for Voice Care, Department of Otolaryngology-Head and Neck Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, U.S.A.ORCID 0000-0002-1804-6707

Funding

An Optimizer-Simulator for PhonosurgeryR01DC014538 · NIDCD · UT SOUTHWESTERN MEDICAL CENTER · PI MAU, I-FAN THEODORE · 2016 to 2020
$2.0M
NIDCD NIH HHS R01 DC014538
6 · The paper itself

Abstract

objectiveMost type 1 thyroplasty implants and some common injectable materials are mechanically stiff. Placing them close to the supple vocal fold mucosa can potentially dampen vibration and adversely impact phonation, yet this effect has not been systematically investigated. This study aims to examine the effect of implant depth on vocal fold vibration and vocal output. STUDY

designComputational simulation.

methodsVoice production was simulated with a fiber-gel finite element computational model that incorporates a three-layer vocal fold composition (superficial lamina propria, vocal ligament, thyroarytenoid muscle). Implants of various depths were simulated, with a "deeper" or more medial implant positioned closer to the vocal fold mucosa and replacing more muscle elements. Trajectories of surface and within-tissue nodal points during vibration were produced. Outcome measures were the trajectory radii, fundamental frequency (F

resultsAmplitude of vibration at the vocal fold medial surface was reduced by an implant depth of as little as 14% of the total transverse vocal fold depth. Increase in F

conclusionsCommonly used implants can dampen vibration "from a distance," ie, even without being immediately adjacent to vocal fold mucosa. Since implants are typically placed at depths examined in this study, stiff implants likely have a negative vocal impact in a subset of patients. Softer materials may be preferable, especially in bilateral medialization procedures. LEVEL OF EVIDENCE: N/A Laryngoscope, 130:2192-2198, 2020.

Indexed as

PhonationProstheses and ImplantsVoice QualityComputational BiologyComputer SimulationHumansLaryngoplastyModels, AnatomicTreatment OutcomeVibrationVocal Cordsinjection laryngoplastysilastic implantThyroplastyvocal fold injectionvocal fold paralysis

Identifiers

PMID31643091
PMCPMC7382902

What OpenQuestion holds

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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.