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Benefits of Bimodal Hearing With Cochlear and Middle Ear Implants: Preliminary Results in Four Patients.

 Hyun Jin Lee  ;  Sung Huhn Kim  ;  In Seok Moon  ;  Jinsei Jung  ;  Jeon Mi Lee  ;  Jae Young Choi 
 OTOLOGY & NEUROTOLOGY, Vol.39(6) : e422-e428, 2018 
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OBJECTIVE: Conventional hearing aids have some limitations in overcoming a large air-bone gap or in cases of severe high-frequency hearing loss. The authors aimed to evaluate the benefit of a new bimodal hearing configuration combining cochlear implantation (CI) and middle ear implant (MEI) in patients with severe mixed conductive and ski-slope hearing loss. STUDY DESIGN: Retrospective case review. SETTING: Tertiary referral center. PATIENTS: Four patients with severe to profound hearing loss, who underwent CI in one ear and MEI in the other, were enrolled. INTERVENTION: Audiological outcomes were assessed at least 6 months after the MEI/CI operation. Pure-tone audiometry (PTA) in unaided, CI-aided, and MEI-aided conditions were measured. MAIN OUTCOME MEASURES: Average threshold changes in bands of frequencies (<1 kHz, ≥1 kHz) were compared between MEI-aided and HA-aided conditions. The Korean version of the Hearing-in-Noise Test (K-HINT), and speech perception score in noisy and quiet conditions were evaluated in the bimodal configuration (i.e., MEI with CI). RESULTS: MEI-aided PTA was especially increased in high-frequency areas (≥1 kHz). Speech perception in noisy and quiet conditions demonstrated better scores in the bimodal configuration. K-HINT also demonstrated better scores in the bimodal configuration. CONCLUSIONS: There is an increasing number of patients with unilateral CI and residual hearing in the contralateral ear. The benefits of a new bimodal hearing configuration with CI and MEI were demonstrated in patients with severe high-frequency hearing loss or mixed conductive hearing loss in the contralateral ear.
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1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sung Huhn(김성헌)
Moon, In Seok(문인석) ORCID logo https://orcid.org/0000-0002-3951-5074
Jung, Jinsei(정진세) ORCID logo https://orcid.org/0000-0003-1906-6969
Choi, Jae Young(최재영) ORCID logo https://orcid.org/0000-0001-9493-3458
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