ReviewWorld journal of otorhinolaryngology - head and neck surgery2017
Challenging aspects of contemporary cochlear implant electrode array design.
Review in World journal of otorhinolaryngology - head and neck surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Effectiveness of the nucleus SmartNav system in detecting and preventing electrode tip fold-overs: a multi-centre retrospective analysis of 213 cochlear implantations.The Journal of laryngology and otology · 2026Article
- Early experience with next-generation wireless technology for detecting cochlear implant electrode tip fold-over and placement without X-ray: nucleus SmartNav.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
- Causes and Challenges Regarding Explantation and Reimplantation in Pediatric Cochlear Implant Surgery: A Retrospective Analysis.Medicina (Kaunas, Lithuania) · 2025Article
- Influence of surgeon experience on the incidence of tip fold-over with slim preformed cochlear implant electrodes.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
- Cochlear Duct Length: Rethinking Its Role in Auditory Outcomes.Turkish archives of otorhinolaryngology · 2025Article
- An Electrically Evoked Compound Action Potential Marker for Local Spiral Ganglion Neuron Degeneration: The Failure Index.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Simulated auditory nerve response evoked by lateral-wall and peri-modiolar electrode arrays inserted in scala tympani or scala vestibuli.Frontiers in neuroscience · 2025Article
- Automated segmentation of clinical CT scans of the cochlea and analysis of the cochlea's vertical profile.Heliyon · 2024Article
- 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
- Location of the Tympanic Nerve Relative to the Round and Oval Windows.The journal of international advanced otology · 2023Article
- An optically-guided cochlear implant sheath for real-time monitoring of electrode insertion into the human cochlea.Scientific reports · 2022Article
- Effects of Degrees of Degeneration on the Electrical Excitation of Human Spiral Ganglion Neurons Based on a High-Resolution Computer Model.Frontiers in neuroscience · 2022Article
- Insertion Depth for Optimized Positioning of Precurved Cochlear Implant Electrodes.Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2020Article
- Magnetically Steered Robotic Insertion of Cochlear-Implant Electrode Arrays: System Integration and First-In-Cadaver Results.IEEE robotics and automation letters · 2020Article
- Long-Term Stability of Electrical Stimulation in Children with Bilateral Cochlear Implants.Trends in hearingArticle
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveA design comparison of current perimodiolar and lateral wall electrode arrays of the cochlear implant (CI) is provided. The focus is on functional features such as acoustic frequency coverage and tonotopic mapping, battery consumption and dynamic range. A traumacity of their insertion is also evaluated.
methodsReview of up-to-date literature.
resultsPerimodiolar electrode arrays are positioned in the basal turn of the cochlea near the modiolus. They are designed to initiate the action potential in the proximity to the neural soma located in spiral ganglion. On the other hand, lateral wall electrode arrays can be inserted deeper inside the cochlea, as they are located along the lateral wall and such insertion trajectory is less traumatic. This class of arrays targets primarily surviving neural peripheral processes. Due to their larger insertion depth, lateral wall arrays can deliver lower acoustic frequencies in manner better corresponding to cochlear tonotopicity. In fact, spiral ganglion sections containing auditory nerve fibres tuned to low acoustic frequencies are located deeper than 1 and half turn inside the cochlea. For this reason, a significant frequency mismatch might be occurring for apical electrodes in perimodiolar arrays, detrimental to speech perception. Tonal languages such as Mandarin might be therefore better treated with lateral wall arrays. On the other hand, closer proximity to target tissue results in lower psychophysical threshold levels for perimodiolar arrays. However, the maximal comfort level is also lower, paradoxically resulting in narrower dynamic range than that of lateral wall arrays. Battery consumption is comparable for both types of arrays.
conclusionsLateral wall arrays are less likely to cause trauma to cochlear structures. As the current trend in cochlear implantation is the maximal protection of residual acoustic hearing, the lateral wall arrays seem more suitable for hearing preservation CI surgeries. Future development could focus on combining the advantages of both types: perimodiolar location in the basal turn extended to lateral wall location for higher turn locations.
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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.