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Published on: August 4, 2023
Facial nerve aberrations encountered during cochlear implantation
Jae-Jin Song1, Joo Hyun Park, Jeong Hun Jang
1Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Korea.
Acta Oto-Laryngologica
|June 7, 2012
Summary
Facial nerve (FN) aberrations are rare during cochlear implantation (CI) in pediatric patients with cochleovestibular malformations. Careful surgical technique ensures successful CI outcomes with minimal FN complications.
Area of Science:
- Otolaryngology
- Neurosurgery
- Pediatric Surgery
Background:
- Cochlear implantation (CI) in pediatric patients with cochleovestibular malformations presents unique surgical challenges.
- Aberrations in the facial nerve (FN) course or shape can complicate CI procedures.
Purpose of the Study:
- To determine the incidence, characteristics, and surgical impact of facial nerve (FN) aberrations during cochlear implantation (CI).
Main Methods:
- Retrospective review of 972 patients undergoing CI (1988-2009).
- Evaluation of radiologic and intraoperative findings for malformations of the FN, ossicles, and inner ear.
- Analysis of intraoperative events and postoperative FN outcomes.
Main Results:
- Seven patients (0.7%) exhibited FN aberrations, all pediatric, with combined cochlear and ossicular malformations.
- Abnormalities included altered segment locations and bifurcations of the FN.
- Successful CI via facial recess approach and cochleostomy, with one case of temporary iatrogenic FN paralysis.
Conclusions:
- Surgeons must consider potential FN aberrations in pediatric CI candidates with cochleovestibular malformations.
- Meticulous FN handling and ossicular management facilitate successful CI with low complication rates.