Evidence map›Paper›PMID 41870920›Full record

ArticleIEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society2026

Pilot Chronic Evaluation of a Slanted Electrode Array as an Auditory Nerve Implant.

W Mitchel Thomas, Richard K Gurgel, Loren Rieth, Inderbir Sondh, Hubert H Lim, Meredith E Adams, Moritz Leber, Joseph D Crew, Florian Solzbacher, David J Warren

Abstract read
In one paragraph

Article in IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society, 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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0citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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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

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

10 authors.

W Mitchel Thomas
Richard K Gurgel
Loren Rieth
Inderbir Sondh
Hubert H Lim
Meredith E Adams
Moritz Leber
Joseph D Crew
Florian Solzbacher
David J Warren

Funding

Supplement to Assess the MRI Safety of an Intracranial Auditory Nerve ImplantUG3NS107688 · NINDS · UNIVERSITY OF MINNESOTA · PI ADAMS, MEREDITH EVELYN, FRANKLIN, ROBERT KYLE · 2018 to 2022
$7.0M
NINDS NIH HHS UG3 NS107688
6 · The paper itself

Abstract

objectiveThe purpose of this paper is to present a chronic, preclinical, pilot study of a multi-electrode auditory nerve implant. To date, the most successful auditory neuroprosthesis is the cochlear implant, but these devices have known limitations. Intraneural stimulation of the auditory nerve is a promising alternative, but preclinical investigations of multi-electrode devices have been limited to acute or semi-chronic studies.

methodsSix cats were chronically implanted in the right auditory nerve with a 15-channel Utah Slant ArrayTM. The array's position in the internal auditory canal was confirmed using computed tomography. Electrode impedance and evoked responses were recorded regularly during the indwelling period to evaluate performance.

resultsTwo of the six implants met endpoint criteria at 6 months, with stable electrode impedances and robust evoked responses on at least 50% of their channels. Another two implants exhibited stable electrode impedances, but activation thresholds increased over three months. Two implants failed within the first two weeks due to device migration caused by connector-related issues.

conclusionThis study reports the first successful chronic deployment of an multi-electrode auditory nerve implant in a preclinical model. Two implanted cats exhibited stable chronic performance, marked by a consistent set of electrodes capable of eliciting evoked responses. The failure modes of the remaining four cats are discussed and recommendations are made to stabilize implant placement. The study lays a solid foundation for future chronic safety and efficacy investigations as part of an effort to translate this new neuroprosthetic technology into the clinic.

Indexed as

Cochlear NerveElectrodes, ImplantedAnimalsCatsCochlear ImplantsElectric ImpedanceEquipment Failure AnalysisEvoked Potentials, AuditoryPilot ProjectsProsthesis Design

Identifiers

PMID41870920
PMCPMC13273710

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.