Journal article
Acoustic plus electric speech processing: Long‐term results
The Laryngoscope, Vol.128(2), pp.473-481
02/2018
DOI: 10.1002/lary.26669
PMCID: PMC5700847
PMID: 28543270
Abstract
Objective
Few studies have investigated the stability of residual hearing and speech perception outcomes in individuals who were implanted with a shorter electrode device.
Study Design
Longitudinal, single‐subject design.
Methods
Fifty subjects who received a Nucleus Hybrid (Cochlear, Sydney, Australia) short electrode cochlear implant (CI) and had a minimum of 2 years (and up to 15 years) of postoperative longitudinal experience were included in this study. Twenty‐three subjects received a Nucleus Hybrid S8 (S8); 14 subjects received a Nucleus Hybrid L24 (L24); and 13 received a Nucleus Hybrid S12 (S12). Audiometric thresholds and consonant‐nucleus‐consonant (CNC) words were collected pre‐ and postoperatively for up to 15 years for the S8 subjects and for up to 7 years for the S12 and L24 subjects. AzBio Sentences in multi‐talker babble was collected for up to 7 years on the S12 and L24 subjects.
Results
Longitudinally, 83% of the S8 subjects, 92% of the S12 subjects, and 86% of the L24 subjects maintained a functional hearing pure‐tone average (PTA) (125–500 Hz). Predicted change using a piecewise linear mixed model in PTA over time showed a postoperative linear decrease in hearing for each group until 0.5 years, after which the PTA stabilizes and is maintained. The averaged individual data for CNC and AzBio sentences show a significant improvement in scores by 0.25 to 0.5 years postimplantation, after which scores start to reach their maximum.
Conclusion
This long‐term study demonstrates that acoustic‐electric processing hearing and improvement in speech understanding in quiet and in noise can be accomplished and sustained for many years with a short electrode CI.
Level of Evidence
2C. Laryngoscope, 128:473–481, 2018
Details
- Title: Subtitle
- Acoustic plus electric speech processing: Long‐term results
- Creators
- Bruce J Gantz - Department of Otolaryngology–Head and Neck Surgery, University of IowaCamille C Dunn - Department of Otolaryngology–Head and Neck Surgery, University of IowaJacob Oleson - University of IowaMarlan R Hansen - Department of Otolaryngology–Head and Neck Surgery, University of Iowa
- Resource Type
- Journal article
- Publication Details
- The Laryngoscope, Vol.128(2), pp.473-481
- DOI
- 10.1002/lary.26669
- PMID
- 28543270
- PMCID
- PMC5700847
- NLM abbreviation
- Laryngoscope
- ISSN
- 0023-852X
- eISSN
- 1531-4995
- Number of pages
- 9
- Grant note
- Lions Clubs International Foundation Iowa Lions Foundation National Institutes of Health (2P50DC000242) National Institutes on Deafness and Other Communication Disorders
- Language
- English
- Date published
- 02/2018
- Academic Unit
- Molecular Physiology and Biophysics; Biostatistics; Neurosurgery; Otolaryngology
- Record Identifier
- 9983997450702771
Metrics
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