Clinical trial for cartilage conduction hearing aid in Indonesia

Ronny Suwento, Dini Widiarni Widodo, Tri Juda Airlangga, Widayat Alviandi, Keisuke Watanuki, Naoko Nakanowatari, Hiroshi Hosoi, Tadashi Nishimura

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Hearing improvement represents one of the may valuable outcomes in microtia and aural atresia reconstruction surgery. Most patients with poor development in their hearing function have had a severe microtia. Conventional methods to improve hearing function are bone conduction and bone anchored hearing aids. Cartilage conduction hearing aids (CCHA) represents a new amplification method. This study assessed the outcomes and evaluated the impact and its safety in the patients with microtia and aural atresia whose hearing dysfunction did not improve after surgery for ear reconstruction in our hospital. Hearing functions were evaluated with pure tone audiometry or sound field testing by behavioral audiometry and speech audiometry before and after CCHA fitting. As a result, there was a significant difference between unaided and aided thresholds (p < 0.001). Speech recognition threshold and speech discrimination level also significantly improved with CCHA. The average functional gains of 14 ears were 26.9 ± 2.3 dB. Almost all parents of the patients reported satisfaction with the performance of CCHA, and daily communication in children with hearing loss also became better than usual.

Original languageEnglish
Pages (from-to)410-417
Number of pages8
JournalAudiology Research
Issue number3
Publication statusPublished - Sept 2021


  • Cartilage conduction hearing aid
  • Clinical trial
  • Hearing function
  • Microtia


Dive into the research topics of 'Clinical trial for cartilage conduction hearing aid in Indonesia'. Together they form a unique fingerprint.

Cite this