Affiliation:
1. Department of Otorhinolaryngology–Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
2. Otolaryngology–Head and Neck Surgery, Ohud Hospital, Al Madinah Al Munawwarah, Kingdom of Saudi Arabia
Abstract
ObjectiveTo analyze the long-term auditory performance after cochlear implantation (CI) and identify anatomical features of Mondini dysplasia associated with post-CI outcomes.Study DesignRetrospective study.SettingTertiary care academic center.PatientsWe enrolled 49 ears with Mondini dysplasia who underwent CI with more than 7 years of follow-up and age at CI- and sex-matched control group with radiologically normal inner ears.Main Outcomes and MeasuresThe development of auditory skills after CI was evaluated using word recognition scores (WRSs). The anatomical features were measured based on temporal bone computed tomography and magnetic resonance imaging, involving the width of the bony cochlear nerve canal (BCNC), cochlear basal turn, enlarged vestibular aqueduct, cochlear height, and diameter of the cochlear nerve (CN).ResultsCI in ears with Mondini dysplasia showed comparable benefits and improvement of auditory performance to controls during the 7 years of follow-up. In Mondini dysplasia, four (8.2%) ears showed narrow BCNC (<1.4 mm) with poorer WRS (58 ± 17%) than those with normal-sized BCNC, which had WRS (79 ± 10%) comparable to that of the control group (77 ± 14%). In Mondini dysplasia, the maximum (r= 0.513,p< 0.001) and minimum (r= 0.328,p= 0.021) CN diameters had positive correlations with post-CI WRS. The maximum CN diameter (β= 48.347,p< 0.001) and BCNC width (β= 12.411,p= 0.041) were significant factors that influence the post-CI WRS in multiple regression analysis.ConclusionsPreoperative anatomical evaluation, especially BCNC status and CN integrity, may serve as predictive markers for post-CI performance.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Subject
Neurology (clinical),Sensory Systems,Otorhinolaryngology
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献