期刊
MEDICINA-LITHUANIA
卷 58, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/medicina58101474
关键词
cochlear nerve aplasia; cochlear implantation; correction of hearing impairment; vestibulocochlear nerve diseases
This study provides fresh evidence on the effectiveness of cochlear implantation in patients with cochlear nerve aplasia. The results show that while the Categories of Auditory Performance scores gradually improve after cochlear implantation, there are individual variations in outcomes. Patients with lower scores at 1-year postoperative evaluation find it difficult to improve their auditory performance even after 3 years, while those with higher scores show improved performance. Intraoperative electrically evoked compound action potential is not correlated with postoperative auditory performance scores.
Background and Objectives: Many otologists face a dilemma in the decision-making process of surgical management of patients with cochlear nerve (CN) aplasia. The goal of this study is to provide fresh evidence on cochlear implantation (CI) results in patients with CN aplasia. Materials and Methods: We scrutinized functional outcomes in 37 ears of 21 children with bilateral CN aplasia who underwent unilateral or bilateral CI based on cross-sectional and longitudinal assessments. Results: The Categories of Auditory Performance (CAP) scores gradually improved throughout the 3-year follow-up; however, variable outcomes existed between individuals. Specifically, 90% of recipients with a 1-year postoperative CAP score <= 1 could not achieve a CAP score over 1 even at 3-year postoperative evaluation, while the recipients with a 1-year postoperative CAP score >1 had improved auditory performance, and 72.7% of them were able to achieve a CAP score of 4 or higher. Meanwhile, intraoperative electrically evoked compound action potential was not correlated with postoperative CAP score. Conclusions: Our results further refine previous studies on the clinical feasibility of CI as the first treatment modality to elicit favorable auditory performance in children with CN aplasia. However, special attention should be paid to pediatric patients with an early postoperative CAP score <= 1 for identification of unsuccessful cochlear implants and switching to auditory brainstem implants.
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