Evidence map›Paper›PMID 33795738›Full record

ArticleScientific reports2021

A novel cochlear measurement that predicts inner-ear malformation.

Tawfiq Khurayzi, Fida Almuhawas, Abdulrahman Alsanosi, Yassin Abdelsamad, Úna Doyle, Anandhan Dhanasingh

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

11 citing papers in PubMed, 18 citations in OpenAlex.

  1. Cochlear duct length variability in prelingual sensorineural hearing loss: Emphasis on Waardenburg syndrome and implications for cochlear implantation.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
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  5. Validation of Automatic Cochlear Measurements Using OTOPLANJournal of personalized medicine · 2023
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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

6 authors at 3 institutions in 3 countries.

Tawfiq KhurayziKing Abdullah Ear Specialist Center (KAESC), College of Medicine, King Saud University, Riyadh, 11411, Saudi Arabia. tawfiqaakk@hotmail.com.
Fida AlmuhawasKing Abdullah Ear Specialist Center (KAESC), College of Medicine, King Saud University, Riyadh, 11411, Saudi Arabia.
Abdulrahman AlsanosiKing Abdullah Ear Specialist Center (KAESC), College of Medicine, King Saud University, Riyadh, 11411, Saudi Arabia.
Yassin AbdelsamadResearch Department, MED-EL GmbH, Riyadh, Saudi Arabia.
Úna DoyleResearch and Development Department, MED-EL GmbH, Innsbruck, Austria.
Anandhan DhanasinghResearch and Development Department, MED-EL GmbH, Innsbruck, Austria.
King Saud University · SAMED-EL (Austria) · ATKing Abdullah Petroleum Studies and Research Center · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The A-value used in cochlear duct length (CDL) estimation does not take malformed cochleae into consideration. The objective was to determine the A-value reported in the literature, to assess the accuracy of the A-value measurement and to evaluate a novel cochlear measurement in distinguishing malformed cochlea. High resolution Computer Tomography images in the oblique coronal plane/cochlear view of 74 human temporal bones were analyzed. The A-value and novel C-value measurement were evaluated as predictors of inner ear malformation type. The proximity of the facial nerve to the basal turn was evaluated subjectively. 26 publications report on the A-value; but they do not distinguish normal vs. malformed cochleae. The A-values of the normal cochleae compared to the cochleae with cochlear hypoplasia, incomplete partition (IP) type I, -type II, and -type III were significantly different. The A-value does not predict the C-value. The C-values of the normal cochleae compared to the cochleae with IP type I and IP type III were significantly different. The proximity of the facial nerve to the basal turn did not relate to the type of malformation. The A-value is different in normal vs. malformed cochleae. The novel C-value could be used to predict malformed anatomy, although it does not distinguish all malformation types.

Indexed as

CochleaCochlear DuctCochlear ImplantationFacial NerveHearing Loss, SensorineuralHumansImage Processing, Computer-AssistedImaging, Three-DimensionalRegression AnalysisReproducibility of ResultsTemporal BoneTomography, X-Ray Computed

Identifiers

PMID33795738
PMCPMC8016924
OpenAlexW3139997560

What OpenQuestion holds

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LicenceCC BY
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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.