Evidence map›Paper›PMID 31552525›Full record

ArticleEuropean 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 Surgery2020

Electrophysiological detection of electrode fold-over in perimodiolar cochlear implant electrode arrays: a multi-center study case series.

P Mittmann, G Lauer, A Ernst, S Mutze, F Hassepass, S Arndt, D Arweiler-Harbeck, F Christov

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in 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, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Changes in Revision Cochlear Implantation and Device Failure Profiles.Clinical and experimental otorhinolaryngology · 2024
    Article
  5. Article
  6. Review
  7. Article
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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

8 authors.

P MittmannDepartment of Otolaryngology At Ukb, Unfallkrankenhaus Berlin, Warener Str.7, 12683, Berlin, Germany. philipp.mittmann@googlemail.com.ORCID http://orcid.org/0000-0001-9693-9319
G LauerDepartment of Otolaryngology At Ukb, Unfallkrankenhaus Berlin, Warener Str.7, 12683, Berlin, Germany.
A ErnstDepartment of Otolaryngology At Ukb, Unfallkrankenhaus Berlin, Warener Str.7, 12683, Berlin, Germany.
S MutzeDepartment of Radiology, Ukb Berlin, Berlin, Germany.
F HassepassDepartment of Otolaryngology, Head and Neck Surgery, University of Freiburg, Freiburg, Germany.
S ArndtDepartment of Otolaryngology, Head and Neck Surgery, University of Freiburg, Freiburg, Germany.
D Arweiler-HarbeckDepartment of Otolaryngology, Head and Neck Surgery, University Hospital of Essen, University Duisburg-Essen, Essen, Germany.
F ChristovDepartment of Otolaryngology, Head and Neck Surgery, University Hospital of Essen, University Duisburg-Essen, Essen, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIt is important for the surgeon to determine the position of the CI electrode array during and after its placement within the cochlea. Most preferably, this should be within the scala tympani to obtain the best audiological outcome. Thus, misplacement into the scala vestibuli or tip fold-over should be prevented. Since there are different ways to ensure proper positioning of the electrode array within the scala tympani (e.g., intraoperative radiography, electrophysiological recordings), our study was aimed at detecting intraoperative electrophysiologic characteristics to better understand the mechanisms of those electrode tip fold-overs. MATERIAL AND

methodsIn a multi-centric, retrospective case-control series, patients with a postoperatively by radiography detected tip fold-over in perimodiolar electrodes were included. The point of fold-over (i.e., the electrode position) was determined and the intraoperative Auto-NRT recordings were analysed and evaluated.

resultsFour patients were found to have an electrode tip fold-over (out of 85 implantees). Significant changes of the Auto-NRT recordings were not detected. All tip fold-overs occurred in the most apical part of the electrodes. DISCUSSION: Cochlear implantation for hearing impaired patients plays a decisive role in modern auditory rehabilitation. Perimodiolar electrode arrays may fold over during the insertion and, hence, could have a negative impact on audiological outcome. Characteristic electrophysiologic changes to possibly predict this were not found in our series.

Indexed as

Diagnostic Techniques, OtologicalAdultCase-Control StudiesCochlear ImplantationCochlear ImplantsElectrodiagnosisFemaleHearing Loss, SensorineuralHumansMaleMiddle AgedRetrospective StudiesScala TympaniCochlear implantsElectrophysiologyImagingPerimodiolar CI electrodeTip fold-over

Identifiers

PMID31552525

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.