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Incomplete partition type III: A rare and difficult cochlear implant surgical indication
Levent Sennaroğlu1, Münir Demir Bajin1
1Department of Otolaryngology, Head and Neck Surgery, Hacettepe University, Faculty of Medicine, Turkey.
Auris, Nasus, Larynx
|March 21, 2017
Summary
Incomplete partition type-III, a rare inner ear anomaly, presents unique challenges for cochlear implantation. Careful surgical technique and imaging are crucial to avoid complications like gusher and electrode misplacement.
Area of Science:
- Otolaryngology
- Neurosurgery
- Medical Imaging
Background:
- Incomplete partition type-III (IP-III) is an exceptionally rare inner ear malformation.
- It represents the rarest subtype within the incomplete partition spectrum.
- Understanding its clinical features is vital for effective management.
Purpose of the Study:
- To present the clinical characteristics of IP-III.
- To detail treatment strategies, focusing on cochlear implantation.
- To highlight surgical considerations and potential complications.
Main Methods:
- Retrospective analysis of 10 IP-III cases (9 primary, 1 revision) treated from 2004-2015.
- Detailed description of cochlear implantation techniques used.
- Review of preoperative imaging and intraoperative findings.
Main Results:
- All 10 cases underwent successful cochlear implantation.
- Eight cases were standard, while two required revision surgery.
- Intraoperative gusher and internal auditory canal misplacement were noted complications.
Conclusions:
- IP-III necessitates tailored treatment based on hearing loss severity.
- Stapes surgery should be avoided due to risks of gusher and hearing deterioration.
- Preoperative imaging and intraoperative electrode placement verification are mandatory.
