Evidence map›Paper›PMID 31746820›Full record

ArticleOtology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology2020

Hearing Preservation Outcomes Using a Precurved Electrode Array Inserted With an External Sheath.

Ashley M Nassiri, Robert J Yawn, Jourdan T Holder, Robert T Dwyer, Matthew R O'Malley, Marc L Bennett, Robert F Labadie, Alejandro Rivas

Open access · greenAbstract read
In one paragraph

Article in Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
2.1field-weighted citation impact, top 13% 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

13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. A systematic review of electrode array scalar dislocation after cochlear implant surgery.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
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Cochlear integrity and scalar translocation assessment after cochlear implantation based on three-dimensional anatomical reconstructions.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
    Article
  6. The effect of surgical complexity on hearing preservation during cochlear implantation with sheathed perimodiolar electrodes.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
  7. Identifying Slim Modiolar Electrode Tip Fold-Over With Intracochlear Electrocochleography.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2024
    Article
  8. Comparing linear and non-linear models to estimate the appropriate cochlear implant electrode array length-are current methods precise enough?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 · 2024
    Article
  9. Article
  10. Intracochlear electrode array position and cochlear implant outcomes using the nucleus slim modiolar electrode and the extended round window approach: a follow-up study.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 · 2022
    Observational
  11. Article
  12. Article
  13. 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

8 authors at 2 institutions in 1 country.

Ashley M NassiriDepartment of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center.
Robert J YawnDepartment of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center.
Jourdan T HolderDepartment of Audiology, Vanderbilt University Medical Center.
Robert T DwyerDepartment of Audiology, Vanderbilt University Medical Center.
Matthew R O'MalleyDepartment of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center.
Marc L BennettDepartment of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center.
Robert F LabadieDepartment of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center.
Alejandro RivasDepartment of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center.
Vanderbilt University Medical Center · USVanderbilt University · US

Funding

The Vanderbilt Institute for Clinical and Translational Research (VICTR)UL1TR000445 · NCATS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BERNARD, GORDON RAPHAEL · 2012 to 2016
$41.4M
Research Supplements to Promote Diversity in Health-Related ResearchR01DC008408 · NIDCD · VANDERBILT UNIVERSITY MEDICAL CENTER · PI LABADIE, ROBERT F · 2007 to 2022
$7.6M
NCATS NIH HHS UL1 TR000445NIDCD NIH HHS R01 DC008408
6 · The paper itself

Abstract

objectivesDescribe audiologic outcomes in hearing preservation cochlear implantation (CI) using a precurved electrode array inserted using an external sheath and evaluate association of electrode positioning and preservation of residual hearing. STUDY

designRetrospective review.

settingTertiary otologic center. PATIENTS: Twenty-four adult patients who underwent hearing preservation CI with precurved electrode array.

interventionsCI, intraoperative computed tomography (CT) OUTCOME MEASURES:: Audiologic measures (consonant-nucleus-consonant [CNC] words, AzBio sentences, low-frequency pure tone averages [LFPTA]) and electrode location (scalar location, electrode-to-modiolus distance ((Equation is included in full-text article.)), angular insertion depth).

resultsTwenty-four adults with less than 80 dB LFPTA with a precurved electrode array inserted using an external sheath; 16 underwent intraoperative CT. LFPTA was 58.5 dB HL preoperatively, with a 17.3 dB threshold shift at CI activation (p = 0.005). CNC word scores improved from 6% preoperatively to 64% at 6 months postoperatively (p < 0.0001). There was one scalar translocation and no tip fold-overs. The average angular insertion depth was 388.2 degrees, and the average (Equation is included in full-text article.)across all electrodes was 0.36 mm. Multivariate regression revealed a significant correlation between CNC scores at 6 months and angular insertion depth (p = 0.0122; r = 0.45, adjusted r = 0.35). Change in LFPTA was not significantly associated with angular insertion depth or (Equation is included in full-text article.).

conclusionsA low rate of translocation allows a precurved electrode array inserted using an external sheath to maintain hearing preservation rates comparable to straight electrode arrays. With scala tympani insertion, angular insertion depth is a positive marker of improved speech performance postoperatively but may be a confounder variable based on individual cochlear size.

Indexed as

Cochlear ImplantsHearingTreatment OutcomeAdultCochlear ImplantationFemaleHumansMaleMiddle AgedRetrospective Studies

Identifiers

PMID31746820
PMCPMC6910978
OpenAlexW2986366151

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.