The Auditory System in Humans

Doyle, James H.

doi:10.1177/014556139707600306

Cited by 1 publication

(1 citation statement)

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“…Cochlear implantation (CI) is regarded as an effective method of audiologic rehabilitation for patients with moderate to severe sensorineural hearing loss (SNHL) who achieved little to no benefit from conventional hearing aids (HA). Since its initial introduction in 1961, CI has been widely used for audiologic rehabilitation worldwide [ 1 , 2 ]. Improvements in surgical techniques and implant devices have enabled more patients with SNHL to regain their hearings through CI.…”

Section: Introductionmentioning

confidence: 99%

The experience of device failure after cochlear implantation

Kim

Choi

Kang

et al. 2023

Journal of Otolaryngology - Head & Neck Surgery

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Background The present study describes the treatment of patients at a tertiary institution who experienced device failure after Cochlear Implantation (CI), as well as identifying prodromic symptoms that could assist in the timely identification and management of device failure. Study design Retrospective database review (January 2000–May 2017). Setting Single tertiary hospital. Methods Factors recorded included the etiology of hearing loss; age at first and revision CI surgeries; surgical information, including operation time and approach; electrical outcomes after implantation; device implanted; symptoms of device failure; history of head trauma; and audiologic outcomes as determined by categories of auditory performance (CAP). Results From January 2000 to May 2017, 1431 CIs were performed, with 27 (1.9%) undergoing revision surgeries due to device failure. The most common etiology of hearing loss was idiopathic (12/27), followed by cochlear hypoplasia (5/27). Mean age at initial CI was 11.8 (1–72) years, with 21 being pre-lingual and 6 being post-lingual. Of the total devices initially implanted, 80.5% were from Cochlear, 15.9% from MED-EL, and 3.5% from Advanced Bionics. The failure rates of these devices were 1.3%, 3.1%, and 10.0%, respectively. The most suggestive symptom of device failure was intermittent loss of signal. Mean CAP scores were 5.17 before reimplantation and 5.54 and 5.81 at 1- and 3-years, respectively, after reimplantation. Conclusion The most suggestive symptom preceding device failure was intermittent loss of signal. Patients who present with this symptom should undergo electrical examination for suspected device failure. Audiologic outcomes showed continuous development despite revision surgeries.

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Section: Introductionmentioning

confidence: 99%