인공와우 조율에서 주파수별 전기자극수준의 변화양상A Longitudinal Study of Frequency Specific Electrical Stimulation Levels in Cochlear Implant Users
- Other Titles
- A Longitudinal Study of Frequency Specific Electrical Stimulation Levels in Cochlear Implant Users
- Authors
- 탁평곤; 장지원; 박의현; 박상헌; 정광진; 임기정
- Issue Date
- 2013
- Publisher
- 대한이비인후과학회
- Keywords
- Auditory threshold; Cochlear implants; Electric impedance; Hearing.
- Citation
- 대한이비인후과학회지 두경부외과학, v.56, no.4, pp.201 - 205
- Journal Title
- 대한이비인후과학회지 두경부외과학
- Volume
- 56
- Number
- 4
- Start Page
- 201
- End Page
- 205
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/105241
- DOI
- 10.3342/kjorl-hns.2013.56.4.201
- Abstract
- Background and Objectives The purpose of the study was to evaluate the changes in electrical stimulation levels, i.e. threshold (T) levels, comfortable (C) levels, dynamic range (DR), and electrode impedance values (EIVs) during the first year in cochlear implant users.
Subjects and Method The maps of 49 cochlear implant users (at least 1 year mapping), using the Nucleus device, were examined at the time of initial connection, and at 6 and 12 months post-initial stimulation. T levels, C levels, DR and EIVs were analyzed according to three frequency levels.
Results During the first 6 months of implant use, C levels and DR increased significantly whereas T levels were stable. EIVs of current carrying electrodes decreased significantly from the connection to the 12-month visit. The changes of electrical stimulation levels did not differ among three frequency levels during the entire follow-up.
Conclusion During the first 6 months of implant use, C levels and DR increased significantly. Thus, an appropriate mapping in the first 6 month is critical to setup hearing capacity in implant users. The mapping should be performed under the best communication environment between the audiologist and the patient, and it makes correct setting of T levels from the initial connection period.
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Collections - College of Medicine > Department of Medical Science > 1. Journal Articles
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