Evidence map›Paper›PMID 32691251›Full record

ArticleJournal of the Association for Research in Otolaryngology : JARO2020

Relationships between Intrascalar Tissue, Neuron Survival, and Cochlear Implant Function.

Donald L Swiderski, Deborah J Colesa, Aaron P Hughes, Yehoash Raphael, Bryan E Pfingst

Open access · greenAbstract read
In one paragraph

Article in Journal of the Association for Research in Otolaryngology : JARO, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

23 citing papers in PubMed, 29 citations in OpenAlex.

  1. Electrode impedance in cochlear implantation: determinants, dynamics, and clinical implications.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 · 2026
    Review
  2. Article
  3. Visualization of the Spiral Ganglion Neuron in Vivo Using a NovelAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  4. Article
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  12. Cochlear Health and Cochlear-implant Function.Journal of the Association for Research in Otolaryngology : JARO · 2023
    Review
  13. Article
  14. Article
  15. 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 1 institution in 1 country.

Donald L SwiderskiKresge Hearing Research Institute, Department of Otolaryngology-Head and Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA.
Deborah J ColesaKresge Hearing Research Institute, Department of Otolaryngology-Head and Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA.
Aaron P HughesKresge Hearing Research Institute, Department of Otolaryngology-Head and Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA.
Yehoash RaphaelKresge Hearing Research Institute, Department of Otolaryngology-Head and Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA.
Bryan E PfingstKresge Hearing Research Institute, Department of Otolaryngology-Head and Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA. bpfingst@umich.edu.ORCID 0000-0001-7967-7820
Michigan Medicine · US

Funding

Functionally Important Features of the Electrically Stimulated CochleaR01DC015809 · NIDCD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PFINGST, BRYAN E · 2017 to 2021
$3.2M
Across-Site Patterns of Perception with Cochlear ImplantsR01DC010786 · NIDCD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PFINGST, BRYAN E · 2010 to 2014
$1.6M
Across-Site Patterns of Cochlear Implant Function: Importance of Cochlear HealthR56DC010786 · NIDCD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PFINGST, BRYAN E · 2016 to 2016
$75k
NIDCD NIH HHS R01 DC010786NIDCD NIH HHS R01 DC015809NIDCD NIH HHS R56 DC010786
6 · The paper itself

Abstract

Fibrous tissue and/or new bone are often found surrounding a cochlear implant in the cochlear scalae. This new intrascalar tissue could potentially limit cochlear implant function by increasing impedance and altering signaling pathways between the implant and the auditory nerve. In this study, we investigated the relationship between intrascalar tissue and 5 measures of implant function in guinea pigs. Variation in both spiral ganglion neuron (SGN) survival and intrascalar tissue was produced by implanting hearing ears, ears deafened with neomycin, and neomycin-deafened ears treated with a neurotrophin. We found significant effects of SGN density on 4 functional measures but adding intrascalar tissue level to the analysis did not explain more variation in any measure than was explained by SGN density alone. These results suggest that effects of intrascalar tissue on electrical hearing are relatively unimportant in comparison to degeneration of the auditory nerve, although additional studies in human implant recipients are still needed to assess the effects of this tissue on complex hearing tasks like speech perception. The results also suggest that efforts to minimize the trauma that aggravates both tissue development and SGN loss could be beneficial.

Indexed as

AnimalsCochleaCochlear ImplantsFibrosisGuinea PigsMaleSpiral Ganglionauditory prosthesiselectrically evoked compound action potentialsfibrosispsychophysical thresholdsspiral ganglion neurons

Identifiers

PMID32691251
PMCPMC7445211
OpenAlexW3045442685

What OpenQuestion holds

Textmetadata
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.