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Selection of the optimal first ear for sequential bilateral cochlear implantation in children

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dc.contributor.authorKim, H-
dc.contributor.authorHa, J-
dc.contributor.authorGil, ES-
dc.contributor.authorJang, JH-
dc.contributor.authorPark, HY-
dc.contributor.authorChoung, YH-
dc.date.accessioned2023-01-26T06:10:07Z-
dc.date.available2023-01-26T06:10:07Z-
dc.date.issued2021-
dc.identifier.issn0145-5613-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/23996-
dc.description.abstractObjectives: When there is a difference in hearing on both ears, where to perform the first cochlear implantation (CI) becomes an important issue. The purpose of the study was to evaluate which ear should be chosen for the first implantation in sequential bilateral CI with a long inter-implant period. Methods: The study population consisted of 34 severe-to-profound sensorineural hearing loss pediatrics with the inter-implant period of ≥3 years between the first CI (CI-1) and the second CI (CI-2) before the age of 19 (mean of inter-implant period: 7.1-year). The patients were classified into Group A (CI-1 was performed on the ear with better hearing), Group B (CI-1 on the ear with worse hearing), or Group C (symmetrical hearing in both ears). Speech intelligibility test results were compared between the groups. Results: The monosyllabic word scores of CI-1 were excellent in Groups A (91.7±7.9%) and B (92.5±3.6%) but slightly lower in Group C (85.7±14.9%) before the second implantation (P =.487). At 3 years after the second implantation, all groups demonstrated excellent scores in the bilateral CI condition (95.9±3.0% in Group A; 99.1±.8% in Group B; 97.5±2.9% in Group C, P =.600). However, when the patients were tested in using CI-2 only in Groups A and B after using bilateral CI for 3 years, the scores were inconsistent in Group A (79.6±23.9%; range: 22.2-94.4%), while those were higher and more constant in Group B (92.9±4.8%; 86.8-100.0%). Conclusions: The first CI is strongly recommended to perform on a worse hearing ear if they had different hearing levels between ears. Even with the first CI on a worse hearing ear, its performance never deteriorates. In addition, if they receive the second CI several years later, it will be likely that the second one functions better.-
dc.formatapplication/pdf-
dc.language.isoen-
dc.titleSelection of the optimal first ear for sequential bilateral cochlear implantation in children-
dc.typeArticle-
dc.identifier.pmid34898304-
dc.identifier.urlhttps://journals.sagepub.com/doi/abs/10.1177/01455613211064012?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed-
dc.subject.keywordbilateral cochlear implantations-
dc.subject.keywordbilateral hearing-
dc.subject.keywordcongenital bilateral sensorineural hearing loss-
dc.subject.keywordsequential bilateral cochlear implantations-
dc.subject.keywordspeech intelligibility-
dc.contributor.affiliatedAuthor김, 한태-
dc.contributor.affiliatedAuthor장, 정훈-
dc.contributor.affiliatedAuthor박, 헌이-
dc.contributor.affiliatedAuthor정, 연훈-
dc.type.localJournal Papers-
dc.identifier.doi10.1177/01455613211064012-
dc.citation.titleEar, nose, & throat journal-
dc.citation.date2021-
dc.citation.startPage1455613211064012-
dc.citation.endPage1455613211064012-
dc.identifier.bibliographicCitationEar, nose, & throat journal, : 1455613211064012-1455613211064012, 2021-
dc.identifier.eissn1942-7522-
dc.relation.journalidJ001455613-
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Journal Papers > School of Medicine / Graduate School of Medicine > Otolaryngology
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