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Related Concept Videos

The Cochlea01:13

The Cochlea

44.3K
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
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Hearing01:31

Hearing

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When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
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Effect of Interaural Angular Insertion Depth Mismatch on Sound Localization in Adolescent Bilateral Cochlear Implant Users.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
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Assessing bone radiodensity and thickness in cochlear implant patients through manual photon-counting CT image segmentation using ITK-SNAP.

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Outcomes in Adolescents From Sequential vs Bilateral Cochlear Implantation in Young Children.

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Cost-effectiveness Analysis Comparing Osia System to Percutaneous Bone Conduction Devices in Sweden.

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Related Experiment Video

Updated: May 20, 2025

Robotic Cochlear Implantation for Direct Cochlear Access
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Robotic Cochlear Implantation for Direct Cochlear Access

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Long-Term Cochlear Implant Sensitivity in Patients With Far Advanced Otosclerosis.

Raphaële Quatre1,2,3,4, Åsa Bonnard4,5, Jeremy Wales4,5

  • 1Department of Oto-Rhino-Laryngology, Head and Neck Surgery, University Hospital, Grenoble Alpes, France.

The Laryngoscope
|May 19, 2025
PubMed
Summary

Cochlear implant fitting in otosclerosis patients shows higher electrical impedance but comparable hearing outcomes. Tailored programming and monitoring are crucial for these individuals.

Keywords:
cochlear implant fittingcochlear implantationfar advanced otosclerosishearing outcomes

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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Biomedical Engineering

Background:

  • Cochlear implantation in otosclerosis patients presents unique challenges due to bone growth and tissue mass.
  • Otosclerosis can increase resistance to electrical current flow, impacting stimuli transmission to ganglion cells.
  • Precise speech processor fitting is critical for patient success and satisfaction.

Purpose of the Study:

  • To evaluate mid- and long-term cochlear implant fitting in otosclerosis patients.
  • To compare cochlear implant fitting parameters between otosclerosis patients and a control group.
  • To assess the impact of otosclerosis on electrical impedance and neural response in cochlear implant users.

Main Methods:

  • A monocentric retrospective case-control study involving 29 otosclerosis patients and 51 controls.
  • Data collection included patient demographics, surgical details, postoperative complications, hearing tests, and cochlear implant fitting parameters.
  • Analysis focused on electrical impedance, C- and T-levels, and neural response telemetry thresholds.

Main Results:

  • Otosclerosis patients exhibited higher impedances at 2 and 5 years post-implantation.
  • Significantly higher impedances were observed for basal, middle, and overall electrodes at 2 years.
  • Despite electrical differences, auditory outcomes at 5 years were comparable between the otosclerosis and control groups.

Conclusions:

  • Tissue remodeling at the cochlear apex in otosclerosis patients likely increases electrical resistance.
  • Tailored programming strategies are essential for optimizing cochlear implant function in otosclerosis.
  • Long-term monitoring is recommended for otosclerosis patients with cochlear implants to ensure optimal performance.