Journal article
Younger- and older-age adults with unilateral and bilateral cochlear implants: speech and spatial hearing self-ratings and performance
Otology & neurotology, Vol.30(7), pp.921-929
10/2009
DOI: 10.1097/MAO.0b013e3181b76b3b
PMCID: PMC2828521
PMID: 19692936
Abstract
Compare results of cochlear implantation in younger and older adults in the domains of disability and handicap, as well as in tests of word recognition and localization, across unilateral implant (CI), bilateral (CI + CI), and CI with an acoustic hearing aid in the nonimplanted ear (CI + HA).
Three parts: retrospective (postimplant only) analysis; prospective (preimplant versus postimplant); correlation between age and benefit from CI versus CI + CI. Two age groups, older and younger than 60 years, for the first 2 analyses; age is a continuous variable for the third analysis.
Tertiary referral hospital clinic.
Postlingually severely-to-profoundly hearing-impaired adults: Totals of 68 CI, 36 CI + CI, and 38 CI + HA in the retrospective part of the study; totals of 30 CI, 18 CI + CI, and 16 CI + HA in the prospective parts. Numbers vary from these totals on individual measures.
Patients receive either 1 or 2 cochlear implants; some with 1 CI opt to retain a hearing aid in the nonimplanted ear.
Principal measures: Hearing Handicap Inventory for the Elderly, Hearing Handicap Questionnaire, Speech, Spatial and Qualities of Hearing Scale, word recognition test, and soundfield localization test. The study is exploratory, but proceeding from a null hypothesis of no expected contrast as a function of patient age.
All patient groups show significant benefit after implantation. No significant age-related differences are observed in patients with unilateral implant, nor in CI + HA group. In the CI + CI group, the younger cohort showed very substantial increases in both performance and self-rated abilities; the older cohort provides more mixed outcomes.
Results for the CI group confirm and extend earlier research. The result for the younger group of CI + CI patients demonstrates the consistent incremental benefit obtained from a bilateral procedure. The mixed outcome observed in the older CI + CI group might be due to individual differences in interaction between effects of aging and the ability to integrate binaural cues.
Details
- Title: Subtitle
- Younger- and older-age adults with unilateral and bilateral cochlear implants: speech and spatial hearing self-ratings and performance
- Creators
- William Noble - University of New England, Armidale, New South Wales, AustraliaRichard S TylerCamille C DunnNavjot Bhullar
- Resource Type
- Journal article
- Publication Details
- Otology & neurotology, Vol.30(7), pp.921-929
- DOI
- 10.1097/MAO.0b013e3181b76b3b
- PMID
- 19692936
- PMCID
- PMC2828521
- NLM abbreviation
- Otol Neurotol
- ISSN
- 1531-7129
- eISSN
- 1537-4505
- Publisher
- Ovid Technologies (Wolters Kluwer Health); United States
- Grant note
- P50 DC000242-22 / NIDCD NIH HHS P50 DC000242 / NIDCD NIH HHS M01 RR000059 / NCRR NIH HHS RR00059 / NCRR NIH HHS P50 DC000242-21 / NIDCD NIH HHS
- Language
- English
- Date published
- 10/2009
- Academic Unit
- Communication Sciences and Disorders; Otolaryngology
- Record Identifier
- 9984002302202771
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