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 Surgery2026
Determining ideal electrode insertion depth in paediatric cochlear implantation.
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, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSpeech and language outcomes following early cochlear implantation vary widely among patients. Identifying modifiable, device-specific surgical parameters contributing to this variability is essential to optimise therapeutic outcomes.
objectiveThis study investigates the association between electrode angular depth of insertion (aDOI) and speech perception outcomes in a homogeneous cohort of children implanted with a single lateral wall electrode design.
methodsA cohort of 25 prelingually deaf children, aged 4 to 5 years at implantation, received unilateral Oticon Neuro ZTI cochlear implants at Mohammed VI University Hospital in Marrakech. All subjects had idiopathic deafness, completed at least two years of speech therapy, and demonstrated successful electrode activation. Postoperative modified Stenvers-view radiographs were used to calculate angular depth of insertion (aDOI). Auditory outcomes were assessed using APCEI and CAP scores. Response surface regression modelling was employed to explore the non-linear relationship between aDOI and auditory performance and to estimate the device-specific angular depth associated with peak predicted outcomes.
resultsThe mean angular depth of insertion was 275°. APCEI scores ranged from 11 to 21, and CAP scores from 3 to 7. Non-linear modelling identified a predicted peak in auditory performance at approximately 340°, corresponding to an APCEI score of 17.67 and CAP score of 5.98. This value represents the model-derived optimum within the observed insertion range for the Oticon Neuro ZTI electrode platform.
conclusionWithin this homogeneous cohort implanted with a single lateral wall electrode design, auditory outcomes demonstrated a non-linear association with angular depth of insertion, with peak predicted performance near 340°. These findings highlight the importance of device-specific insertion strategies and careful surgical planning. The results should not be generalized to other electrode designs without dedicated validation.
Indexed as
Identifiers
42472961What OpenQuestion holds
Registered trials
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.