Evidence map›Paper›PMID 41642302›Full record

ArticleHNO2026

[Electrocochleography with an extratympanic tympanic membrane electrode : Age-dependent reference values for vertigo diagnostics].

Tom Gawliczek, Miranda Claire Morrison, Katharine Keller, Athanasia Korda, Stefan Weder, Marco D Caversaccio, Georgios Mantokoudis

Abstract readEnglish Abstract
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In one paragraph

Article in HNO, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Tom GawliczekDepartment of Otorhinolaryngology, Head and Neck Surgery, lnselspital, Bern University Hospital, University of Bern, Bern, Schweiz. tom.gawliczek@sitem-insel.ch.ORCID http://orcid.org/0000-0002-9480-7133
Miranda Claire MorrisonDepartment of Otorhinolaryngology, Head and Neck Surgery, lnselspital, Bern University Hospital, University of Bern, Bern, Schweiz.
Katharine KellerDepartment of Otorhinolaryngology, Head and Neck Surgery, lnselspital, Bern University Hospital, University of Bern, Bern, Schweiz.
Athanasia KordaDepartment of Otorhinolaryngology, Head and Neck Surgery, lnselspital, Bern University Hospital, University of Bern, Bern, Schweiz.
Stefan WederDepartment of Otorhinolaryngology, Head and Neck Surgery, lnselspital, Bern University Hospital, University of Bern, Bern, Schweiz.
Marco D CaversaccioDepartment of Otorhinolaryngology, Head and Neck Surgery, lnselspital, Bern University Hospital, University of Bern, Bern, Schweiz.
Georgios MantokoudisDepartment of Otorhinolaryngology, Head and Neck Surgery, lnselspital, Bern University Hospital, University of Bern, Bern, Schweiz.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundElectrocochleography (ECochG) records electrical potentials of the inner ear and is used, among other applications, in the diagnostic work-up of Ménière's disease. For extratympanic recordings, age-dependent reference values are currently lacking, which limits clinical interpretation.

objectiveThis study aims to establish age-stratified reference ranges for the summating potential (SP)/action potential (AP) amplitude and area ratios for noninvasive diagnostics in patients with suspected endolymphatic hydrops. MATERIALS AND

methodsA total of 47 ears from 26 normal-hearing volunteers aged 20-70 years were examined using an extratympanic tympanic membrane electrode. The SP and AP potentials were recorded in a standardized manner. Amplitude and area ratios were calculated and analyzed with respect to age and laterality.

resultsThe reference ranges (P5-P95) were 0.13-0.46 for the SP/AP amplitude ratio and 0.72-1.72 for the SP/AP area ratio. No significant side differences were observed. A slight age-related increase in both parameters was detected, without a clinically relevant impact.

conclusionExtratympanic ECochG enables a minimally invasive and reliable diagnostic approach with age-stratified reference values. It represents a practical adjunct to imaging in Ménière's disease and allows a more differentiated assessment of pathological inner ear function.

Indexed as

Audiometry, Evoked ResponseTympanic MembraneVertigoAdultAgedAge FactorsElectrodesFemaleHumansMaleMeniere DiseaseMiddle AgedReference ValuesYoung AdultAge groupsElectrocochleographyMorbus MenièreReference values

Identifiers

PMID41642302

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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.