AI Article Synopsis
- The study aimed to assess the link between a narrow bony cochlear nerve canal (BCNC) and the occurrence of facial nerve stimulation (FNS) in pediatric cochlear implant patients, with a focus on preoperative risk prediction.
- A total of 64 children who received cochlear implants were analyzed, revealing that those experiencing FNS had significantly narrower BCNCs, lower cochlear nerve-to-facial nerve ratios, and higher stimulation levels compared to those without FNS.
- The findings suggest that a narrow BCNC may lead to increased FNS risk, emphasizing the need for careful selection and programming during cochlear implantation to minimize complications.
Article Abstract
Objectives/hypothesis: To evaluate the correlation between a narrow bony cochlear nerve canal (BCNC) and facial nerve stimulation (FNS) after cochlear implantation (CI) and their underlying mechanisms and to predict the risk of FNS preoperatively.
Study Design: Retrospective cohort study.
Methods: A total of 64 pediatric cases that underwent CI were included. Among them, 32 cases experienced FNS after CI, and another 32 cases were selected from 817 pediatric implantees by stratified random sampling. The width of the BCNC, the status of the cochlear nerve (CN) and the internal auditory canal (IAC), T level, and C level were compared and analyzed. Strategies for eliminating FNS were also analyzed.
Results: The FNS group showed a narrower BCNC (1.09 ± 0.52 mm) than the control group (1.99 ± 0.61 mm; P < .01), a lower CN/facial nerve ratio (0.32 ± 0.36) than the control group (1.34 ± 0.76; P < .01), and narrower IAC diameter (4.06 ± 1.71 mm) than the control group (5.66 ± 1.36 mm; P < .01). The FNS group also showed higher T level (165.7 ± 28.3 μA) than the control group (142.2 ± 21.2 μA; P < .01). Adjustment of the C levels and/or pulse width and switching off offending electrodes were attempted to eliminate FNS, with a 75.0% success rate. The FNS group still showed low Categories of Auditory Performance scores (3.00 ± 1.90) compared with the control group (5.94 ± 1.41, P < .01) after adjustment.
Conclusions: A narrow BCNC could be a cause of FNS after CI. Therefore, careful selection of the side for CI and programming strategies are required to reduce FNS.
Level Of Evidence: 4. Laryngoscope, 126:1433-1439, 2016.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/lary.25655 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!