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Yakawa S, Sugiuchi T, Myojin R, Sato K, Murakami T, Miyoshi Y, Sugio Y. Management of Cartilage Conduction Hearing Aids in Pediatric Patients. Audiol Res 2023; 13:871-888. [PMID: 37987334 PMCID: PMC10660859 DOI: 10.3390/audiolres13060076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/30/2023] [Accepted: 11/01/2023] [Indexed: 11/22/2023] Open
Abstract
Forty-nine children who started wearing cartilage conduction hearing aids (CC-HAs) before completing elementary school (17 with bilateral hearing loss and 32 with unilateral hearing loss) were followed-up and examined. The wearing and utilization status of the CC-HA and its progress to date were evaluated. In addition, 33 participants who purchased the CC-HAs were interviewed to assess the wearing effect. Eleven of seventeen children with bilateral hearing loss and 25 of 32 children with unilateral hearing loss continued to use the CC-HAs. In terms of wearing effect, a good wearing effect was reported, even by those with unilateral hearing loss. In cases where it was difficult to wear CC-HAs stably with pasting or ear tips, it was possible to fix them stably using commercially available hair bands and eyeglass vines. In two cases, the CC-HAs were worn from infancy. With ingenuity and appropriate educational and medical support, it is possible to wear CC-HAs from infancy.
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Affiliation(s)
- Satomi Yakawa
- Department of Otolaryngology, Sugiuchi Clinic, 2-7-4 Jiyugaoka, Meguro-ku, Tokyo 152-0035, Japan (R.M.)
- Kotoba no Mori—Child Development Support and After-School Daycare Facility, 2-7-4-2F Jiyugaoka, Meguro-ku, Tokyo 152-0035, Japan
| | - Tomoko Sugiuchi
- Department of Otolaryngology, Sugiuchi Clinic, 2-7-4 Jiyugaoka, Meguro-ku, Tokyo 152-0035, Japan (R.M.)
- Kotoba no Mori—Child Development Support and After-School Daycare Facility, 2-7-4-2F Jiyugaoka, Meguro-ku, Tokyo 152-0035, Japan
- Department of Otolaryngology, Kanto Rosai Hospital, 1-1 Kizukisumiyoshi-cho, Nakahara-ku, Kawasaki-shi 211-8510, Kanagawa, Japan
| | - Rika Myojin
- Department of Otolaryngology, Sugiuchi Clinic, 2-7-4 Jiyugaoka, Meguro-ku, Tokyo 152-0035, Japan (R.M.)
- Kotoba no Mori—Child Development Support and After-School Daycare Facility, 2-7-4-2F Jiyugaoka, Meguro-ku, Tokyo 152-0035, Japan
| | - Kiyoko Sato
- Kotoba no Mori—Child Development Support and After-School Daycare Facility, 2-7-4-2F Jiyugaoka, Meguro-ku, Tokyo 152-0035, Japan
- Department of Communication Sciences and Disorders, Faculty of Health and Welfare, Prefectural University of Hiroshima, 1-1 Gakuen-cho, Mihara-shi 723-0053, Hiroshima, Japan
| | - Takako Murakami
- Kawasaki City Central Rehabilitation Centre, 3-16-1 Ida, Nakahara-ku, Kawasaki-shi 211-0035, Kanagawa, Japan
| | - Yuki Miyoshi
- Department of Otolaryngology, Kanto Rosai Hospital, 1-1 Kizukisumiyoshi-cho, Nakahara-ku, Kawasaki-shi 211-8510, Kanagawa, Japan
| | - Yuichiro Sugio
- Department of Otolaryngology, Kanto Rosai Hospital, 1-1 Kizukisumiyoshi-cho, Nakahara-ku, Kawasaki-shi 211-8510, Kanagawa, Japan
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Li B, Lee S, Cao Z, Koike T, Joseph R, Brown TH, Zhao F. A Systematic Review of the Audiological Efficacy of Cartilage Conduction Hearing Aids and the Factors Influencing Their Clinical Application. Audiol Res 2023; 13:636-650. [PMID: 37622931 PMCID: PMC10451753 DOI: 10.3390/audiolres13040055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/26/2023] Open
Abstract
This systematic review evaluates the efficacy and benefit of cartilage conduction hearing aids (CC-HAs) and that factors that influence purchasing decisions. The hearing thresholds and functional gain following CC-HA wear were synthesised. A one-way analysis of variance compared the differences in the hearing thresholds and functional gain at individual frequencies and in patients with a variety of pathological changes. The synchronised aided hearing threshold and functional gain at 2.0 kHz were significantly better than at 0.5, 1.0, and 4.0 kHz. There was no significant difference in the synchronised unaided hearing thresholds across individual frequencies between 0.5 and 4.0 kHz. The synchronised functional gain in patients with atresia was significantly greater than in patients with aural atresia or stenosis and middle ear pathologies with normal ear canals. The acceptability of CC-HAs in terms of purchase decision is influenced by the condition of the external auditory meatus and severity of hearing loss, with the highest purchase rate seen in patients with aural atresia or stenosis. CC-HAs' fitting procedure advantages and cosmetic considerations make these devices a viable and preferred choice for individuals with microtia and aural atresia. Additional research to evaluate the benefits towards emotional well-being is crucial to gain insights into the psychological impact of CC-HA use.
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Affiliation(s)
- Bei Li
- Centre for Speech and Language Therapy and Hearing Science, Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff CF5 2YB, UK;
- Department of Otolaryngology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China
| | - Sinyoung Lee
- Department of Mechanical Engineering, Faculty of Engineering, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Yamanashi 400-8511, Japan;
| | - Zuwei Cao
- Centre for Rehabilitative Auditory Research, Guizhou Provincial People’s Hospital, Guiyang 550002, China;
| | - Takuji Koike
- Department of Mechanical and Intelligent Systems Engineering, Graduate School of Informatics and Engineering, The University of Electro-Communications, Chofu 182-8585, Japan;
| | - Robin Joseph
- King Edward VII Hospital, Berkshire NHS Foundation Trust, Winsor SL4 3DP, UK;
| | | | - Fei Zhao
- Centre for Speech and Language Therapy and Hearing Science, Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff CF5 2YB, UK;
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Sugimoto S, Yoshida T, Fukunaga Y, Motegi A, Saito K, Kobayashi M, Sone M. Comparative Analysis of Cartilage Conduction Hearing Aid Users and Non-Users: An Investigative Study. Audiol Res 2023; 13:563-572. [PMID: 37622925 PMCID: PMC10451330 DOI: 10.3390/audiolres13040049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 07/19/2023] [Indexed: 08/26/2023] Open
Abstract
Clinical findings on cartilage conduction hearing aids (CCHAs) have gradually become clear; however, few reports include a large number of cases. This study included 91 ears from 69 patients who underwent CCHA fitting in our hospital. Their ears were divided into six groups (i.e., bilateral aural atresia or severe canal stenosis, unilateral aural atresia or severe canal stenosis, chronic otitis media or chronic otitis externa with otorrhea, sensorineural hearing loss, mixed hearing loss, and conductive hearing loss) according to their clinical diagnosis and type of hearing loss. Most clinical diagnoses were aural atresia or meatal stenosis (bilateral, 21.8%; unilateral, 39.6%). The purchase rate of CCHAs was higher in the closed-ear group (bilateral, 77.3%; unilateral, 62.5%). In the bilateral closed-ear group, air conduction thresholds at 1000, 2000, and 4000 Hz and aided thresholds with CCHAs at 4000 Hz were significantly lower in the purchase group than the non-purchase group. No significant difference was observed between the purchase and non-purchase groups in the unilateral closed-ear group. In the bilateral closed-ear group, air conduction thresholds and aided thresholds were associated with the purchase rate of CCHAs. In the unilateral closed-ear group, factors other than hearing might have affected the purchase rate of CCHAs.
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Affiliation(s)
- Satofumi Sugimoto
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (T.Y.); (A.M.); (K.S.); (M.K.); (M.S.)
| | - Tadao Yoshida
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (T.Y.); (A.M.); (K.S.); (M.K.); (M.S.)
| | - Yukari Fukunaga
- Department of Rehabilitation, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan;
| | - Aya Motegi
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (T.Y.); (A.M.); (K.S.); (M.K.); (M.S.)
| | - Ken Saito
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (T.Y.); (A.M.); (K.S.); (M.K.); (M.S.)
| | - Masumi Kobayashi
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (T.Y.); (A.M.); (K.S.); (M.K.); (M.S.)
| | - Michihiko Sone
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (T.Y.); (A.M.); (K.S.); (M.K.); (M.S.)
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Nishimura T, Hosoi H, Shimokura R, Kitahara T. Cartilage Conduction Hearing Aids in Clinical Practice. Audiol Res 2023; 13:506-515. [PMID: 37489381 PMCID: PMC10366921 DOI: 10.3390/audiolres13040045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/26/2023] Open
Abstract
A relatively loud sound is audible when a vibrator is attached to the aural cartilage. This form of conduction is referred to as cartilage conduction (CC). In Japan, a new type of hearing aid has been developed using CC and has been available in clinical practice since 2017. A clinical study conducted prior to its launch demonstrated its benefits, particularly in patients with aural atresia who were unable to use air conduction hearing aids. Several studies have been published on the benefits of CC hearing aids since their introduction into clinical practice. Most of the patients included in these studies had canal stenosis or aural atresia, and the purchase rates of CC hearing aids in these patients were relatively high. However, the number of patients with canal-open ears was small, with overall poor results in the trials, with the exception of patients with continuous otorrhea. CC hearing aids are considered a good option for compensating for hearing loss in ears with canal stenosis or atresia in both bilateral and unilateral cases. However, CC hearing aids are not currently considered the first choice for patients with a canal-open ear.
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Affiliation(s)
- Tadashi Nishimura
- Department of Otolaryngology-Head and Neck Surgery, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Hiroshi Hosoi
- MBT (Medicine-Based Town) Institute, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Ryota Shimokura
- Graduate School of Engineering Science, Osaka University, D436, 1-3 Machikaneyama, Toyonaka 560-8531, Osaka, Japan
| | - Tadashi Kitahara
- Department of Otolaryngology-Head and Neck Surgery, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
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Takai S, Sato T, Miyakura Y, Adachi M, Honkura Y, Yamauchi D, Katori Y. Examination of Factors Affecting the Likelihood of Whether Individuals Would Purchase Cartilage Conduction Hearing Aids. Audiol Res 2023; 13:347-356. [PMID: 37218841 DOI: 10.3390/audiolres13030030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 04/29/2023] [Accepted: 05/09/2023] [Indexed: 05/24/2023] Open
Abstract
Cartilage conduction hearing aids (CC-HAs) are a novel type of hearing aid relying on cartilage conduction, the so-called third auditory conduction pathway. However, CC-HAs have only recently entered routine clinical use, and therefore data on their usefulness are lacking. The purpose of this study was to examine the possibility of assessing whether individual patients would show good adaptation to CC-HAs. Thirty-three subjects (41 ears in total) underwent a free trial of CC-HAs. Age, disease category, and the pure-tone threshold of air and bone conduction, unaided field sound threshold, aided field sound threshold, and functional gain (FG) at 0.25, 0.5, 1, 2, and 4 kHz were compared between patients who subsequently purchased and did not purchase the CC-HAs. Overall, 65.9% of the subjects purchased CC-HAs after the trial. In comparison to non-purchasers, those who decided to purchase CC-HAs showed better pure tone hearing thresholds at high frequencies for both air conduction (2 and 4 kHz) and bone conduction (1, 2, and 4 kHz), as well as for aided thresholds in the sound field (1, 2, and 4 kHz) when using CC-HAs. Therefore, the high-frequency hearing thresholds of subjects trialing CC-HAs might be helpful for identifying those who are likely to benefit from them.
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Affiliation(s)
- Shunsuke Takai
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Miyagi, Japan
| | - Takeshi Sato
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Miyagi, Japan
| | - Yuya Miyakura
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Miyagi, Japan
| | - Mika Adachi
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Miyagi, Japan
| | - Yohei Honkura
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Miyagi, Japan
| | - Daisuke Yamauchi
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Miyagi, Japan
| | - Yukio Katori
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Miyagi, Japan
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Nishimura T. Bone and Cartilage Conduction. Audiol Res 2022; 12:77-78. [PMID: 35200257 PMCID: PMC8869453 DOI: 10.3390/audiolres12010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 01/14/2022] [Indexed: 01/27/2023] Open
Affiliation(s)
- Tadashi Nishimura
- Department of Otolaryngology-Head & Neck Surgery, Nara Medical University, Nara 634-8521, Japan
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