Related Experiment Video
Updated: Jul 31, 2026
09:06
Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice
Published on: January 9, 2019
13.9K
Cochlear implantation and partial deafness - A retrospective review on processor programming
Karin Hallin1, Ulrika Larsson1, Elsa Erixon1
1Department of Surgical Sciences, Otorhinolaryngology and Head and Neck Surgery, Uppsala University, Uppsala, Sweden.
Acta Oto-Laryngologica
|August 7, 2024
Summary
Choosing cochlear implant (CI) programming for partial hearing loss is complex. Some patients struggle to adapt to new sound processor settings, especially when low-frequency hearing declines.
Area of Science:
- Audiology
- Biomedical Engineering
- Neurosurgery
Background:
- Selecting optimal cochlear implant (CI) programming parameters for patients with partial deafness presents significant challenges.
- Understanding the nuances of different CI programming forms, including electrical complement (EC), electro-acoustic-stimulation (EAS), and electric stimulation (ES), is crucial for effective patient management.
Purpose of the Study:
- This study investigated the utilization and challenges associated with switching between different processor programming forms (EC, EAS, ES) in patients with partial deafness.
- The research aimed to identify factors influencing programming form selection and adaptation.
Main Methods:
- A retrospective analysis of medical records and audiograms was performed on adult patients considered for EC and EAS programming.
- Data from 84 ears across 80 patients were analyzed, focusing on initial fitting and subsequent programming changes.
Main Results:
- While 64 ears met criteria for EC or EAS, only 54 were initially fitted with these forms. Twenty-eight patients switched between programming forms, with six experiencing adaptation difficulties, particularly with low-frequency hearing loss.
- Approximately 25% of patients initially fitted with EC or EAS changed their programming within two years.
Conclusions:
- Further research is needed to determine the most beneficial sound processor programming parameters for EC and EAS, and to establish optimal timing for switching between forms.
- Clearer guidelines are required for selecting appropriate candidates for EC and EAS to improve patient outcomes.
Related Concept Videos
01:31Hearing
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.
01:13The Cochlea
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.
01:11The Auditory Ossicles
The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
01:02Sample Handling
Transportation of samples from the collection point to the laboratory, as well as storage and preservation techniques, are crucial for maintaining sample integrity and ensuring accurate and reliable test results.
Samples should be transported carefully from collection points to the laboratory. They should be properly sealed and clearly labeled to prevent cross-contamination. To preserve the sample integrity, optimal temperature conditions during transport are essential. This could involve using...
Samples should be transported carefully from collection points to the laboratory. They should be properly sealed and clearly labeled to prevent cross-contamination. To preserve the sample integrity, optimal temperature conditions during transport are essential. This could involve using...
01:16Anatomy of the Ear
Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
01:15Auditory Pathway
Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...