Evidence map›Paper›PMID 30523828›Full record

ArticleJournal of neural engineering2019

Chronic intracochlear electrical stimulation at high charge densities results in platinum dissolution but not neural loss or functional changes in vivo.

Robert K Shepherd, Paul M Carter, Ya Lang Enke, Andrew K Wise, James B Fallon

Open access · greenAbstract read
In one paragraph

Article in Journal of neural engineering, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

19 citing papers in PubMed, 39 citations in OpenAlex.

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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 2 institutions in 1 country.

Robert K ShepherdBionics Institute, St Vincent's Hospital, Melbourne, Australia.ORCID 0000-0002-4239-3362
Paul M CarterCochlear Ltd., Sydney, Australia.
Ya Lang EnkeCochlear Ltd., Sydney, Australia.
Andrew K WiseBionics Institute, St Vincent's Hospital, Melbourne, Australia.
James B FallonBionics Institute, St Vincent's Hospital, Melbourne, Australia.ORCID 0000-0003-2686-3886
Bionics Institute · AUCochlear (Australia) · AU

Funding

Establishing the maximum safe stimulation parameters for platinum cochlear implant electrode arrays.R01DC015031 · NIDCD · UNIVERSITY OF MELBOURNE · PI SHEPHERD, ROBERT K · 2016 to 2018
$1.3M
NIDCD NIH HHS R01 DC015031
6 · The paper itself

Abstract

objectiveAlthough there are useful guidelines defining the boundary between damaging and non-damaging electrical stimulation they were derived from acute studies using large surface area electrodes in direct contact with cortical neurons. These parameters are a small subset of the parameters used by neural stimulators. More recently, histological examination of cochleae from patients that were long-term cochlear implant users have shown evidence of particulate platinum (Pt). The pathophysiological effect of Pt within the cochlea is unknown. We examined the response of the cochlea to stimulus levels beyond those regarded as safe, and to evaluate the pathophysiological response of the cochlea following chronic stimulation at charge densities designed to induce Pt corrosion in vivo. APPROACH: 19 guinea pigs were systemically deafened and implanted with a cochlear electrode array containing eight Pt electrodes of 0.05, 0.075 or 0.2 mm MAIN

resultsCompared with unstimulated control electrodes and electrodes stimulated at 100 µC/cm SIGNIFICANCE: Chronic electrical stimulation of Pt electrodes at 267 or 400 µC/cm

Indexed as

Cochlear ImplantsElectric StimulationAnimalsCochleaDeafnessElectrodesEvoked Potentials, Auditory, Brain StemGuinea PigsMicroscopy, Electron, ScanningNeuronsPlatinumScala TympaniSolubilityPlatinum

Identifiers

PMID30523828
PMCPMC8687872
OpenAlexW2903812818

What OpenQuestion holds

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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.