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  • Title: Partial deafness cochlear implantation provides benefit to a new population of individuals with hearing loss.
    Author: Skarzynski H, Lorens A, Piotrowska A, Anderson I.
    Journal: Acta Otolaryngol; 2006 Sep; 126(9):934-40. PubMed ID: 16864490.
    Abstract:
    CONCLUSION: Partial deafness cochlear implantation (PDCI) is a feasible means of treating individuals who have good low frequency hearing, but a severe to profound hearing loss in the mid to high frequencies. The individuals have benefit in noise and show significant benefit in a number of difficult listening conditions, when compared with their acoustic-only hearing prior to implantation. This benefit is maintained over time. OBJECTIVES: PDCI using the round window surgical technique is one means of treating individuals with a 'ski-slope' hearing loss, who gain minimal benefit from amplification with conventional hearing instruments. This paper aims to demonstrate the benefit that PDCI provides these individuals. PATIENTS AND METHODS: Ten subjects received a partial insertion of a standard MED-EL electrode, using the round window approach. Pure tone audiometry and monosyllable testing in quiet and noise were conducted preoperatively, at implant fitting and then at 1, 3, 6 and 12 months after initial device fitting. The APHAB questionnaire was completed by subjects preoperatively and then at 6 and 12 months after receiving their cochlear implant. RESULTS: Hearing was preserved in 9 of 10 cases. One subject uses a hearing aid to amplify low frequency hearing, the remainder use natural low frequency hearing. Improvements in monosyllabic scores over time in both quiet and noise were significant, particularly within the first 3 months of PDCI use.
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