Contralateral Routing of Signals 보청기 사용자의 보청기 기능이득 확인을 위해이비인후과 진료 현장에서 적용 가능한 음장검사 방법: 탐색적 연구 = A Feasible Sound Field Measurement in ENT Clinics for Contralateral Routing of Signals Hearing Aids: A Pilot Study

다국어 초록 (Multilingual Abstract)

Background and Objectives The hearing in noise test (HINT) or sound localization test(SLT) is used as the standardized assessment for contralateral routing of signals (CROS) andbilateral microphones with contralateral routing of signals (BiCROS) hearing aids (HAs).
However, implementing HINT or SLT can be challenging in most ENT clinics. In this study,we propose a new feasible method specifically designed for conducting a sound field hearingtest for CROS and BiCROS HA users.
Subjects and Method CROS/BiCROS HA users who visited Seoul St. Mary’s hospital be-tween 2019 and 2021 were enrolled for the study. SLT was conducted in a sound-proof roomequipped with two speakers positioned at a 45° angle from the patient on each side: noise stim-uli were presented to the better ear the headphone patient was wearing while signals were pre-sented to the worse ear via the speakers in the room. To validate the sound field test, a correla-tion analysis was conducted using the Bern benefit in single-sided deafness and the Koreanversion of the International Outcome Inventory for Hearing Aids (K-IOI-HA) Questionnaires.
Results The aided speech discrimination score was significantly higher in the signal 60 dBHL/masking 50 dB HL condition than 50 dB HL/masking 50 dB HL condition ( p<0.05). Asignificant correlation was found between the gain of sound field speech audiometry and theK-IOI-HA questionnaire ( p<0.05).
Conclusion Our novel sound field hearing test for CROS/BiCROS HA users, which pres-ents appropriate noise stimuli via headphones to the better ear, appears to be a feasible ap-proach for CROS/BiCROS HA users.

참고문헌 (Reference)

• 1 추호석 ; 조양선 ; 박시내 ; 변재용 ; 신정은 ; 한규철 ; 천병철 ; 이준호 ; 정재윤, "한국어판 International Outcome Inventory for Hearing Aids(IOI-HA)의 표준화: 타당도 및 신뢰도 검증" 대한이비인후과학회 55 (55): 20-25, 2012
• 2 박미나 ; 유신영 ; 전영명 ; 문인석 ; 김성헌, "일측성 전농 환자에서의 청력 재활: 바하와 크로스 보청기의 이득과 선택 기준" 대한이비인후과학회 56 (56): 339-345, 2013
• 3 Marx M, "Treatment choice in single-sided deafness and asymmetric hearing loss. A prospective, multicentre cohort study on 155patients" 46 (46): 736-743, 2021
• 4 Cox RM, "The international outcome inventory for hearing aids(IOI-HA) : Psychometric properties of the English version" 41 (41): 30-35, 2002
• 5 Lawson GD, "Speech audiometry" Plural Publishing 2011
• 6 Valente M, "Pure-tone audiometry and masking" Plural Publishing 2009
• 7 Snapp H, "Nonsurgical management of single-sided deafness : Contralateral routing of signal" 80 (80): 132-138, 2019
• 8 Punch J, "Most comfortable and uncomfortable loudness levels : Six decades of research" 13 (13): 144-157, 2004
• 9 Kochkin S, "MarkeTrak VII : Obstacles to adult non-user adoption of hearing aids" 60 (60): 24-51, 2007
• 10 Kompis M, "Factors influencing the decision for Baha in unilateral deafness : The Bern benefit in single-sided deafness questionnaire" 71 : 103-111, 2011
• 11 Ryu NG, "Clinical effectiveness of wireless CROS(contralateral routing of offside signals)hearing aids" 272 (272): 2213-2219, 2015
• 12 Appachi S, "Auditory outcomes with hearing rehabilitation in children with unilateral hearing loss : A systematic review" 157 (157): 565-571, 2017
• 13 Lin LM, "Amplification in the rehabilitation of unilateral deafness : Speech in noise and directional hearing effects with bone-anchored hearing and contralateral routing of signal amplification" 27 (27): 172-182, 2006
• 14 Finbow J, "A comparison between wireless CROS and bone-anchored hearing devices for single-sided deafness : A pilot study" 36 (36): 819-825, 2015