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Effects of Age at Cochlear Implantation on Auditory Outcomes in Cochlear Implant Recipient Children

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Abstract

Cochlear implantation (CI) is used for rehabilitation of children with bilateral severe to profound sensorineural hearing loss. Recently, treatment of such children has been influenced by diagnostic technological advances. Infants and toddlers are now increasingly included for CI. The primary aim of this study was to determine the effects of ‘age at CI’ on CI outcome. The primary aim of this study was to determine the effects of ‘age at CI’ on CI outcome. In this prospective study at a tertiary care centre, we evaluated 50 cochlear implanted children from October 2011 to March 2013. The case group consists of 15 (30%) children who underwent CI at more than 5 years of age and control group consisted of 35 (70%) children who underwent CI at less than or equal to 5 years age. All patients received auditory and speech rehabilitation and we evaluated their auditory perception outcomes 1 year post CI, the children were assessed by categories of auditory performance (CAP) and meaningful auditory integration scale (MAIS) tests. There were significantly improved mean auditory perception outcomes (increase of 12.29% in CAP, and 14.05% in MAIS scores) at 1 year post CI in CI recipients of age group ‘5 years or less’ in comparison to those who underwent CI at ‘more than 5 years of age’. However, children of ‘more than 5 years’ age at CI, mean CAP and MAIS scores were still more than 80% of maximum achievable CAP and MAIS scores. In this study, CI recipient children who were implanted at less than or equal to 5 years of age were found to have significantly improved auditory perception outcome at 1 year post CI. Hence, it appears preferable to provide CI early. However, even in children who underwent CI at more than 5 years of age, there was substantial improvement in auditory perception outcomes and CI was still helpful in these children. Hence, knowledge of ‘age at CI’ can provide reasonable help in predicting the auditory perception outcome and optimal counselling of families of CI candidates.

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Authors and Affiliations

  1. Sir Ganga Ram Hospital, New Delhi, 110060, India

    Vishal Gaurav, Shalabh Sharma & Satinder Singh

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  1. Vishal Gaurav
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  2. Shalabh Sharma
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  3. Satinder Singh
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Contributions

Dr. Vishal Gaurav: Concept and design of study, acquisition of data/analysis and interpretation of data. Dr. Shalabh Sharma: Manuscript review and final approval of the version to be published. Dr. Satinder Singh: Manuscript review.

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Correspondence to Vishal Gaurav.

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Gaurav, V., Sharma, S. & Singh, S. Effects of Age at Cochlear Implantation on Auditory Outcomes in Cochlear Implant Recipient Children. Indian J Otolaryngol Head Neck Surg 72, 79–85 (2020). https://doi.org/10.1007/s12070-019-01753-4

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  • DOI: https://doi.org/10.1007/s12070-019-01753-4

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