Related Experiment Video
Updated: May 30, 2026
03:49
Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode
Published on: October 11, 2024
Facial nerve stimulation after cochlear implantation: our experience
S Berrettini1, De A Vito, L Bruschini
1Otology and Cochlear Implant Unit, University-Hospital of Pisa, Cisanello, Italy. s.berrettini@med.unipi.it
Summary
Facial nerve stimulation is a common complication after cochlear implant surgery, particularly in patients with otosclerosis or malformations. While often manageable with fitting adjustments, it can sometimes impact hearing outcomes.
Area of Science:
- Otolaryngology
- Neurosurgery
- Biomedical Engineering
Background:
- Facial nerve stimulation (FNS) is a frequent complication following cochlear implant (CI) surgery.
- Certain conditions like otosclerosis, cochlear malformations, and prolonged auditory deprivation increase FNS risk.
- High stimulation levels may be required, further elevating the risk of FNS.
Purpose of the Study:
- To review the clinical features of patients who experienced post-implantation facial nerve stimulation.
- To identify risk factors and outcomes associated with FNS after cochlear implantation.
Main Methods:
- Retrospective review of 11 patients who developed FNS.
- Data collected from 119 consecutively implanted patients between 1999 and 2007.
- Analysis of clinical features and management strategies for FNS.
Main Results:
- Eleven out of 119 patients (9.2%) developed post-implantation FNS.
- FNS was often resolved with speech processor fitting adjustments.
- In some cases, FNS led to a reduction in the overall hearing outcome.
Conclusions:
- Post-implantation FNS is a significant complication requiring careful management.
- Individual patient factors and CI fitting strategies influence FNS occurrence and impact.
- Further research is needed to optimize CI procedures and minimize FNS-related outcomes.
