Long-term audiologic outcomes after cochlear implantation for single-sided deafness

Christopher Blake Sullivan; Zaid Al-Qurayshi; Vivian Zhu; Andrew Liu; Camille Dunn; Bruce J Gantz; Marlan R Hansen

doi:10.1002/lary.28358

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Long-term audiologic outcomes after cochlear implantation for single-sided deafness

Journal article

Open access

Peer reviewed

Long-term audiologic outcomes after cochlear implantation for single-sided deafness

Christopher Blake Sullivan, Zaid Al-Qurayshi, Vivian Zhu, Andrew Liu, Camille Dunn, Bruce J Gantz and Marlan R Hansen

The Laryngoscope, Vol.130(7), pp.1805-1811

07/2020

DOI: 10.1002/lary.28358

PMCID: PMC8588258

PMID: 31710701

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https://www.ncbi.nlm.nih.gov/pmc/articles/8588258View

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Abstract

To evaluate the long-term audiometric outcomes, sound localization abilities, binaural benefits, and tinnitus assessment of subjects with cochlear implant (CI) after a diagnosis of unilateral severe-to-profound hearing loss. The study group consisted of 60 (mean age 52 years, range 19-84) subjects with profound hearing loss in one ear and normal to near-normal hearing in the other ear who underwent CI. Data analysis included pre- and postoperative Consonant-Nucleus-Consonant (CNC) Word scores, AzBio Sentence scores, pure tone thresholds, sound localization, and Iowa Tinnitus Handicap Questionnaire scores. Preoperative average duration of deafness was 3.69 years (standard deviation 4.31), with an average follow-up time of 37.9 months (range 1-87). CNC and AzBio scores significantly improved (both P < 0.001) postoperatively among the entire cohort, and there was much heterogeneity in outcomes with respect to deafness etiology subgroup analysis. Sound localization abilities tended to improve longitudinally in the entire cohort. Binaural benefits using an adaptive Hearing in Noise Test test showed a significant (P < 0.001) improvement with head shadow effect. Utilizing the Iowa Tinnitus Handicap Questionnaire, there was significant improvement in social, physical, and emotional well-being (P = 0.011), along with hearing abilities (P = 0.001). This case series is the largest cohort of CI SSD subjects to date and systematically analyzes their functional outcomes. Subjects have meaningful improvement in word understanding, and sound localization tends to gradually improve over time. Binaural benefit analysis showed significant improvement with head shadow effect, which likely provides ease of listening. 4 Laryngoscope, 130:1805-1811, 2020.

Adult

Aged

Aged, 80 and over

Audiometry - methods

Cochlear Implantation

Deafness - physiopathology

Deafness - surgery

Follow-Up Studies

Hearing - physiology

Humans

Middle Aged

Speech Perception - physiology

Time Factors

Treatment Outcome

Young Adult

Details

Title: Subtitle: Long-term audiologic outcomes after cochlear implantation for single-sided deafness
Creators: Christopher Blake Sullivan - University of Iowa Hospitals and Clinics
Zaid Al-Qurayshi - University of Iowa Hospitals and Clinics
Vivian Zhu - University of Iowa Hospitals and Clinics
Andrew Liu - University of Iowa
Camille Dunn - University of Iowa Hospitals and Clinics
Bruce J Gantz - University of Iowa
Marlan R Hansen - University of Iowa Hospitals and Clinics
Resource Type: Journal article
Publication Details: The Laryngoscope, Vol.130(7), pp.1805-1811
DOI: 10.1002/lary.28358
PMID: 31710701
PMCID: PMC8588258
NLM abbreviation: Laryngoscope
ISSN: 0023-852X
eISSN: 1531-4995
Grant note: P50 DC000242 / NIDCD NIH HHS UL1 TR002537 / NCATS NIH HHS
Language: English
Date published: 07/2020
Academic Unit: Communication Sciences and Disorders; Molecular Physiology and Biophysics; Neurosurgery; Otolaryngology
Record Identifier: 9984297511102771

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