SynthesisOtology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology2019
Angular Electrode Insertion Depth and Speech Perception in Adults With a Cochlear Implant: A Systematic Review.
Synthesis in Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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
18 citing papers in PubMed.
- Hearing outcomes following cochlear implantation with anatomic or default frequency mapping in postlingual deafness adults.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 · 2024Trial
- Machine learning model for automated calculation of intracochlear positional index in 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 · 2026Article
- Predictive Value of 3D Radiological Segmentation and Anatomical Parameters for Cochlear Implantation Electrode Insertion Depth Based on a Large Sample of Patients with Inner Ear Malformations.Journal of otology · 2025Article
- Retrospective Analysis of Hearing Outcomes of Cochlear Implantation in Patients with Deafness Due to Congenital CMV Infection.Journal of clinical medicine · 2025Article
- Impact of cochlear detailed morphology on insertion results and intracochlear trauma of a slim pre-curved electrode array: a micro-CT study.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 · 2025Article
- Hearing preservation outcomes with motorized cochlear implant electrode insertion: matched-cohort observations.Frontiers in surgery · 2025Article
- The impact of the size and angle of the cochlear basal turn on translocation of a pre-curved mid-scala cochlear implant electrode.Scientific reports · 2024Article
- Article
- Word Recognition with a Cochlear Implant in Relation to Prediction and Electrode Position.Journal of clinical medicine · 2023Article
- Effect of Cochlear Implant Electrode Insertion Depth on Speech Perception Outcomes: A Systematic Review.Otology & neurotology open · 2023Article
- Article
- Cochlear Implantation in Pediatrics: The Effect of Cochlear Coverage.Journal of personalized medicine · 2023Article
- The effect of the surgical approach and cochlear implant electrode on the structural integrity of the cochlea in human temporal bones.Scientific reports · 2022Article
- Effect of Electrode Insertion Angle on Cochlear Implantation Outcomes in Adult and Children Patients with Sensorineural Hearing Loss.Oxidative medicine and cellular longevity · 2022Article
- Hybrid active shape and deep learning method for the accurate and robust segmentation of the intracochlear anatomy in clinical head CT and CBCT images.Journal of medical imaging (Bellingham, Wash.) · 2021Article
- The Panoramic ECAP Method: Estimating Patient-Specific Patterns of Current Spread and Neural Health in Cochlear Implant Users.Journal of the Association for Research in Otolaryngology : JARO · 2021Review
- Measuring the cochlea and cochlear implant electrode depth.European radiology · 2021Article
- Preoperative prediction of angular insertion depth of lateral wall cochlear implant electrode arrays.Journal of medical imaging (Bellingham, Wash.) · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveBy discussing the design, findings, strengths, and weaknesses of available studies investigating the influence of angular insertion depth on speech perception, we intend to summarize the current status of evidence; and using evidence based conclusions, possibly contribute to the determination of the optimal cochlear implant (CI) electrode position. DATA SOURCES: Our search strategy yielded 10,877 papers. PubMed, Ovid EMBASE, Web of Science, and the Cochrane Library were searched up to June 1, 2018. Both keywords and free-text terms, related to patient population, predictive factor, and outcome measurements were used. There were no restrictions in languages or year of publication. STUDY SELECTION: Seven articles were included in this systematic review. Articles eligible for inclusion: (a) investigated cochlear implantation of any CI system in adults with post-lingual onset of deafness and normal cochlear anatomy; (b) investigated the relationship between angular insertion depth and speech perception; (c) measured angular insertion depth on imaging; and (d) measured speech perception at, or beyond 1-year post-activation. DATA EXTRACTION AND SYNTHESIS: In included studies; quality was judged low-to-moderate and risk of bias, evaluated using a Quality-in-Prognostic-Studies-tool (QUIPS), was high. Included studies were too heterogeneous to perform meta-analyses, therefore, effect estimates of the individual studies are presented. Six out of seven included studies found no effect of angular insertion depth on speech perception.
conclusionAll included studies are characterized by methodological flaws, and therefore, evidence-based conclusions regarding the influence of angular insertion depth cannot be drawn to date.
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What 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.