Journal
OTOLOGY & NEUROTOLOGY
Volume 41, Issue 10, Pages E1201-E1206Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MAO.0000000000002833
Keywords
Cochlear implantation; Cochlear malformations; Electrode array
Categories
Funding
- MED-EL
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Objective: Cochlear implantation in children with inner ear malformations has been shown to be beneficial. The aims of this study are to evaluate open set word recognition outcomes among children with cochlear implants who have cochlear malformations, and to further assess if either the lateral wall (LW) or perimodiolar (PM) electrode arrays confer any performance outcome advantages. Study Design: Retrospective case series. Setting: Tertiary referral center. Patients: Pediatric cochlear implant recipients with cochlear malformations who were implanted at our institution within the last 10 years and had speech perception scores were eligible for inclusion in the study. Potential participants were excluded if they had less than 1 year of listening experience with the cochlear implant or suspected cochlear nerve deficiency. Intervention: None. Main Outcome Measure: Most recent consonant-nucleus-consonant word score. Results: ANOVA analysis demonstrated that the type of cochlear malformation was significantly associated with speech perception outcome (p = 0.006). Those with IP2 malformations had significantly better word recognition outcomes than the remaining cochlear malformations. Array type (LW or PM) was not associated with better word recognition outcomes in long-term follow-up of patients with IP2 malformations (p = 0.13). Conclusions: In children who have cochlear malformations, cochlear implantation results in varying word recognition outcomes based on the type of malformation. While the participants in this study demonstrated postoperative open set word recognition skills, those with IP2 malformations demonstrated the most benefit. Electrode type was not found to significantly impact outcomes in this cohort.
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