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KMID : 0361020180610120650
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Korean Journal of Otolaryngology - Head and Neck Surgery
2018 Volume.61 No. 12 p.650 ~ p.657
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Early Linguistic Developments of Simultaneous Bilateral Cochlear Implantees
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Seo Ji-Young
Lee Hyun-Jin
Choi Hyun-Seung
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Abstract
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Background and Objectives: The present study aimed to compare receptive and expressive language development in children who have undergone simultaneous bilateral cochlear implantation (SCI) and those who have undergone bimodal stimulation (unilateral CI+ hearing aid).
Subjects and Method: In a retrospective analysis of clinical data, 15 pediatric patients who have received SCI and nine patients who have received bimodal stimulation (BM group) were enrolled. CI was performed for all patients at 24 months of age. Category of Auditory Performance (CAP) scores, Infant-Toddler Meaningful Auditory Integration Scale (IT-MAIS) scores, and developmental quotients (DQ) for expressive and receptive language were compared between the groups at 12 month of follow-up. The Percentage of Consonants Correct (PCC) of children evaluated at 4 years old was also compared.
Results: At 12 months of follow-up, significantly greater improvements in CAP scores (Δ4.25± 0.5) were noted in the SCI group compared to the BM group (Δ3.56±0.88, p=0.041). Significantly greater improvements in IT-MAIS scores were also noted in the SCI group (Δ36.17± 4.09) than in the BM group (Δ30.17±2.91, p=0.004). The DQ of receptive language was higher in the SCI group than in the BM group (87.6±15.4% vs. 75.5±12.0%, p=0.023) at 12 months of follow-up. Moreover, early SCI was associated with better receptive language skills. PCC index of children at 4 years old was higher in the SCI group than in the BM group (88.5± 13.2% vs. 62±15.8%, p=0.014). Earlier SCI was associated with even greater improvements.
Conclusion: Bilateral SCI is associated with significant improvements in language development when compared with bimodal stimulation. Earlier SCI was associated with better outcomes.
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KEYWORD
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Category of Auditory Performance, Cochlear implantation, Infant-Toddler Meaningful Auditory Integration Scale, Percentage of consonants correct, Sequenced Language Scale for Infant
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