인공와우 조율에서 주파수별 전기자극수준의 변화양상

탁평곤; 장지원; 박의현; 박상헌; 정광진; 임기정

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자료유형: 학술저널

저자정보: 탁평곤 장지원 박의현 박상헌 정광진 임기정

저널정보: 대한이비인후과학회 대한이비인후-두경부외과학회지 대한이비인후과학회지 두경부외과학 제56권 제4호

발행연도: 2013.1

수록면: 201 - 205 (5page)

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연구방법

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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.

#Auditory threshold #Cochlear implants #Electric impedance #Hearing.

참고문헌 (15)

참고문헌 신청

Butts SL / 2000 / Changes in stimulation levels over time in nucleus 22 cochlear implant users / Ann Otol Rhinol Laryngol Suppl 185 : 53 ~ 56

Henkin Y / 2003 / Changes over time in electrical stimulation levels and electrode impedance values in children using the Nucleus 24M cochlear implant / Int J Pediatr Otorhin

Henkin Y / 2003 / Changes over time in the psycho-electric parameters in children with cochlear implants / Int J Audiol 42 (5) : 274 ~ 278

Henkin Y / 2006 / A longitudinal study of electrical stimulation levels and electrode impedance in children using the Clarion cochlear implant / Acta Otolaryngol 126 (6) : 58

Huang CQ / 2007 / Effects of steroids and lubricants on electrical impedance and tissue response following cochlear implantation / Cochlear Implants Int 8 (3) : 123 ~ 147