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Updated: Sep 1, 2025

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery
Published on: August 4, 2023
Complications after cochlear implantation in adult patients: a retrospective study
A Dalgic1, E Basaran Bozkurt2, A Aliyeva1
1Otolaryngology - Head and Neck Surgery, University of Health Sciences Turkey, Izmir Bozyaka Education and Research Hospital, Izmir, Turkey.
Insights
Cochlear implantation in adults has a low complication rate. This study found that most complications were minor, supporting its safety for hearing restoration.
Area of Science:
- Otolaryngology
- Neurosurgery
- Medical Device Technology
Background:
- Cochlear implantation is a complex surgical procedure for severe to profound hearing loss.
- Understanding complication rates is crucial for patient counseling and surgical improvement.
Purpose of the Study:
- To evaluate the incidence and types of complications associated with cochlear implantation in adult patients.
- To assess the safety profile of cochlear implantation in a large adult cohort.
Main Methods:
- Retrospective chart review of 392 adult patients who underwent cochlear implantation between 2009 and 2018.
- Complications were classified as minor or major, and as intra-operative or post-operative.
Main Results:
- A total of 395 cochlear implants were reviewed with a mean follow-up of 89 months.
- Minor complications occurred in 16% of patients, and major complications in 8%.
- The overall complication rate was found to be relatively low.
Conclusions:
- Cochlear implantation is a safe procedure in adult patients.
- While potential complications exist, the actual incidence is low, supporting its continued use for hearing rehabilitation.
Objective:
To examine the complication rate in adult patients during and after cochlear implantation.
Methods:
A retrospective chart review was conducted of patients who had undergone cochlear implantation at a tertiary referral centre between 2009 and 2018. All complications and their treatments were categorised as either minor or major, as well as intra- or post-operative.
Results:
The records of 392 patients with 395 implants were reviewed. The mean follow-up period was 89 ± 65.5 months (range, 6-408 months). The mean age of patients was 46 ± 15.2 years (range, 19-84 years). Sixty-two patients (16 per cent) had minor complications and 31 (8 per cent) had major complications.
Conclusion:
Although cochlear implantation has the potential for significant intra- and post-operative complications, the actual complication rate is relatively low, and it can therefore be considered a safe procedure.

