Evidence map›Paper›PMID 33869761›Full record

ReviewLaryngoscope investigative otolaryngology2021

Duration of deafness impacts auditory performance after cochlear implantation: A meta-analysis.

Nikolai Bernhard, Ulrich Gauger, Eugenia Romo Ventura, Florian C Uecker, Heidi Olze, Steffen Knopke, Toni Hänsel, Annekatrin Coordes

Open access · goldAbstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in Laryngoscope investigative otolaryngology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 4% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 76 citations in OpenAlex.

  1. Implantable hearing devices in clinical practice. Systematic review and consensus statements.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2024
    Pooled it
  2. Determinants of auditory performance after cochlear implantation in post-lingual adults: beyond the duration of hearing loss.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
  3. Article
  4. Effects of Asymmetric Auditory Deprivation in Sequential Cochlear Implant.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2026
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. An Electrically Evoked Compound Action Potential Marker for Local Spiral Ganglion Neuron Degeneration: The Failure Index.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  17. Changes in participatory and societal outcomes during the waiting period for cochlear implantation - an observational 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 · 2025
    Observational
  18. Article
  19. Article
  20. 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 3 institutions in 1 country.

Nikolai BernhardDepartment of Otorhinolaryngology, Head and Neck Surgery Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health Berlin Germany.
Ulrich GaugerPrivate Statistical Office Berlin Germany.
Eugenia Romo VenturaRobert Koch Institute Berlin Germany.
Florian C UeckerDepartment of Otorhinolaryngology, Head and Neck Surgery Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health Berlin Germany.
Heidi OlzeDepartment of Otorhinolaryngology, Head and Neck Surgery Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health Berlin Germany.
Steffen KnopkeDepartment of Otorhinolaryngology, Head and Neck Surgery Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health Berlin Germany.
Toni HänselDepartment of Otorhinolaryngology, Head and Neck Surgery Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health Berlin Germany.ORCID https://orcid.org/0000-0002-0032-1061
Annekatrin CoordesDepartment of Otorhinolaryngology, Head and Neck Surgery Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health Berlin Germany.ORCID https://orcid.org/0000-0003-3520-0638
Humboldt-Universität zu Berlin · DERobert Koch Institute · DEStatistisches Bundesamt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveHearing loss is a highly disabling condition. Cochlear implantation is an established remedy if conventional hearing aids have failed to alleviate the level of disability. Unfortunately, cochlear implant (CI) performance varies dramatically. This study aims to examine the effects of duration of deafness (DoD) prior to cochlear implantation and the postoperative duration of implant experience with resulting hearing performance in postlingually deaf patients.

methodsA systematic literature review and two meta-analyses were conducted using the search terms

resultsA total of 36 studies were identified and included data on cochlear implantations following postlingual deafness and postoperative speech testing of hearing outcomes for 1802 patients. The mean age ranged from 44 to 68 years with a DoD of 0.1 to 77 years. Cochlear implant use varied from 3 months to 14 years of age. Speech perception, which was assessed by sentence and monosyllabic word perception, was negatively correlated with DoD. Subgroup analyses revealed worse outcomes for longer DoD and shorter postoperative follow-up.

conclusionDoD is one of the most important factors to predict speech perception after cochlear implantation in postlingually deaf patients. The meta-analyses revealed a negative correlation between length of auditory deprivation and postoperative sentence and monosyllabic speech perception. Longer DoD seems to lead to worse CI performance, whereas more experience with CI mitigates the effect.

Indexed as

Cochlear implantationduration of deafnesshearing lossspeech perception

Identifiers

PMID33869761
PMCPMC8035957
OpenAlexW3127599490

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.