Evidence map›Paper›PMID 35344073›Full record

Observational studyEuropean 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 Surgery2022

A novel radiological method to evaluate the posterior tympanotomy depth for cochlear implantation: our experience in 257 patients.

Mahmoud Mandour, Haitham H Elfarargy, Rasha Lotfy, Mohamed N Elsheikh, Maurizio Barbara, Saad Elzayat

Open access · hybridAbstract readObservational Study
PubMed Full text at PMC Publisher
In one paragraph

Observational study 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, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

4 citing papers in PubMed, 9 citations in OpenAlex.

  1. Review
  2. The prediction of round window visibility at posterior-tympanotomy for cochlear implantation with "black bone" magnetic resonance imaging : Author lists.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
    Article
  3. Article
  4. Observational
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Mahmoud MandourOtolaryngology Department, Tanta University, Tanta, Egypt.
Haitham H ElfarargyOtolaryngology Department, Kafrelsheikh University, Elgeeish Street, Kafrelsheikh, 33511, Egypt. haithamelfarargyent@gmail.com.ORCID http://orcid.org/0000-0001-5303-2012
Rasha LotfyRadiology Department, Tanta University, Tanta, Egypt.
Mohamed N ElsheikhOtolaryngology Department, Tanta University, Tanta, Egypt.
Maurizio BarbaraOtolaryngology Department, Sapienza University of Rome, Rome, Italy.
Saad ElzayatOtolaryngology Department, Kafrelsheikh University, Elgeeish Street, Kafrelsheikh, 33511, Egypt.
Tanta University · EGKafrelsheikh University · EGSapienza University of Rome · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to validate our novel proposed radiological evaluation of the posterior tympanotomy (PT) depth. This dimension represents the bone of the facial recess needed to be drilled to get access into the middle ear during cochlear implantation.

methodsIt was a retrospective observational study that included 257 patients who underwent cochlear implantation from July 2018 to April 2021 in tertiary referral institutions. Two physicians evaluated the preoperative HRCT to measure the PT depth in the oblique para-sagittal cut. On the other hand, two other physicians evaluated the unedited surgical videos to judge the PT depth and classified it into an ordinary PT or deep PT. Then, the preoperative radiological measurements were correlated with the intraoperative findings.

resultsThe radiological PT depth ranged from 2.5 to 5.4 mm with a mean of 3.91 ± 0.886. Sixty-six patients had ordinary PT, and 191 patients had deep PT. Spearman's correlation coefficient revealed a strong correlation between the preoperative radiological PT depth measurements and the intraoperative PT depth judgments (p value < 0.0001).

conclusionsWe created a novel radiological method to measure the posterior tympanotomy depth. This method was valid, reproducible, and reliable in the preoperative radiological evaluation of the PT depth with high sensitivity (91.71%), specificity (90.62%), and accuracy (91.44%). We also found a significant impact of the PT depth on the PT difficulty during cochlear implantation.

Indexed as

Cochlear ImplantationCochlear ImplantsEar, MiddleHumansMiddle Ear VentilationRadiographyRound Window, EarCochlear implantationPosterior tympanotomy depthRadiology

Identifiers

PMID35344073
PMCPMC9474370
OpenAlexW4221095811

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.