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Cochlear implantation in a patient with mucopolysaccharidosis IVA
Journal article   Open access   Peer reviewed

Cochlear implantation in a patient with mucopolysaccharidosis IVA

Kyoko Nagao, Cassidy Walter, William J Parkes, Michael Teixido, Mary C Theroux, Stacy Szymkowski, Thierry Morlet and Shunji Tomatsu
SAGE open medical case reports, v 7, p2050313X19873791
2019
PMID: 31516706
url
https://doi.org/10.1177/2050313X19873791View
Published, Version of Record (VoR) Open

Abstract

Case Report
Mucopolysaccharidosis IVA (OMIM 253000; also known as Morquio A syndrome) is associated with skeletal, airway, and hearing abnormalities. Cochlear implantation is an effective intervention for patients with severe-to-profound hearing loss. Patients can gain substantial improvement in auditory performance, speech perception, and their quality of life from cochlear implantation. Although severe progressive sensorineural hearing loss is a common feature of mucopolysaccharidosis IVA, no detailed description of cochlear implantation for mucopolysaccharidosis IVA has been reported. To review the effectiveness and special considerations associated with cochlear implantation in patients with mucopolysaccharidosis IVA, we here report the case of cochlear implantation in mucopolysaccharidosis IVA by a multidisciplinary team. A retrospective chart review was conducted on a 34-year-old female with mucopolysaccharidosis IVA, who received a cochlear implant. Audiometric thresholds, speech perception scores, and cochlear implant processor mapping information were reviewed during the first 12 months following cochlear implantation. The results of audiological tests indicate improved hearing thresholds as well as remarkable enhancement of speech perception skills over 12 months of cochlear implant use. Cochlear implantation improved auditory performance in a mucopolysaccharidosis IVA patient with postlingually severe-to-profound sensorineural hearing loss. The benefits of cochlear implantation could be meaningful for other Morquio patients with progressive hearing loss, although the risks of surgery and anesthesia should be carefully considered by a multidisciplinary team of experts during the cochlear implant candidacy process.

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Collaboration types
Domestic collaboration
Web of Science research areas
Medicine, General & Internal
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