Abstract | OBJECTIVE: The purpose of this feasibility study was to evaluate whether the use of a shorter-length cochlear implant (10 mm) on one ear and a standard electrode (24 mm) on the contralateral ear is a viable bilateral option for children with profound bilateral sensorineural hearing loss. A secondary purpose of this study was to determine whether the ear with the shorter-length electrode performs similarly to the standard-length electrode. Our goal was to provide an option of electrical stimulation that theoretically might preserve the structures of the scala media and organ of Corti. STUDY DESIGN: The study is being conducted as a repeated-measure, single-subject experiment. SETTING: University of Iowa-Department of Otolaryngology. PATIENTS: INTERVENTIONS: Nucleus Hybrid S12 10-mm electrode and a Nucleus Freedom implant in the contralateral ear. MAIN OUTCOME MEASURES: The Infant-Toddler Meaningful Auditory Integration Scale (IT-MAIS) parent questionnaire, Early Speech Perception, Glendonald Auditory Screening Procedure word test, and Children's Vowel tests will be used to evaluate speech perception and the Minnesota Child Development Inventory and Preschool Language Scales 3 test will be used to evaluate language growth. RESULTS: Preliminary results for 8 children have been collected before and after the operation using the IT-MAIS. All 3 children showed incremental improvements in their IT-MAIS scores overtime. Early Speech Perception, Glendonald Auditory Screening Procedure word test, and Children's Vowel word perception results indicated no difference between the individual ears for the 2 children tested. Performance compared with age-matched children implanted with standard bilateral cochlear implants showed similar results to the children implanted with Nucleus Hybrid S12 10-mm electrode and a Nucleus Freedom implant in contralateral ears. CONCLUSION:
|
Authors | Bruce J Gantz, Camille C Dunn, Elizabeth A Walker, Maura Kenworthy, Tanya Van Voorst, Bruce Tomblin, Chris Turner |
Journal | Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology
(Otol Neurotol)
Vol. 31
Issue 8
Pg. 1300-9
(Oct 2010)
ISSN: 1537-4505 [Electronic] United States |
PMID | 20802369
(Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)
|
Topics |
- Cochlear Implantation
(instrumentation, methods)
- Cochlear Implants
- Feasibility Studies
- Hearing Loss, Bilateral
(physiopathology, surgery)
- Hearing Loss, Sensorineural
(physiopathology, surgery)
- Humans
- Infant
- Speech Perception
(physiology)
- Surveys and Questionnaires
- Treatment Outcome
|