Related Experiment Video
Updated: Apr 7, 2026
Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery
Published on: August 4, 2023
Complications in a series of 4400 paediatric cochlear implantation
Ahmad Daneshi1, Mohammad Ajalloueyan2, Mohammad Mahdi Ghasemi3
1Iran University of Medical Sciences, Rassol (PBUH) Hospital, Tehran, Iran.
Insights
Cochlear implantation in children is safe, with severe complications like CSF leak and meningitis occurring in less than 1% of cases. This review analyzed over 4300 pediatric cochlear implant procedures.
Area of Science:
- Otolaryngology
- Pediatric Surgery
- Medical Device Technology
Background:
- Cochlear implantation is a critical intervention for pediatric hearing loss.
- Understanding complication rates is vital for patient safety and surgical decision-making.
- Data on pediatric cochlear implantation complications in Iran is limited.
Purpose of the Study:
- To retrospectively review the safety and complication profile of pediatric cochlear implantation.
- To identify the incidence of specific complications in a large cohort of Iranian children.
- To assess the overall reliability of cochlear implantation in pediatric patients.
Main Methods:
- Retrospective analysis of 4346 pediatric patients undergoing primary cochlear implantation between 1991 and 2013.
- Review of demographic data and documented complications including CSF leak, meningitis, facial palsy, and wound infection.
- Analysis of hearing loss etiologies in the pediatric cohort.
Main Results:
- Non-syndromic genetic sensorineural hearing loss was the most common etiology (69%).
- Major complications were rare: CSF leak (0.4%), skin necrosis (0.2%), meningitis (0.1%), facial paralysis (0.07%), and massive hemorrhage (0.05%).
- TORCH infections and syndromic hearing loss were other significant etiologies.
Conclusions:
- Pediatric cochlear implantation is a reliable and safe procedure when performed by experienced teams.
- The incidence of severe complications is very low, supporting its continued use.
- This study provides valuable safety data for cochlear implantation in pediatric populations in Iran.
Objectives:
The purpose of this study is to retrospectively review the complications of paediatric patients undergoing cochlear implantation at four major Iranian cochlear implant centres.
Methods:
A retrospective analysis was performed of all patients who underwent primary cochlear implantation from January 1991 to December 2013. The patients were reviewed for demographic information, and complications including cerebrospinal fluid leak, meningitis, facial palsy, and wound infection.
Results:
4400 records were reviewed. Fifty-four patients were lost to follow-up; therefore, 4346 records were analysed. The most common aetiology of hearing loss was non-syndromic genetic sensori-neural hearing loss (69%). Other less common aetiologies of hearing loss included TORCH (Toxoplasmosis, Other infections, Rubella, Cytomegalovirus, Herpes) (11%), syndromic hearing loss (7%), ototoxicity (5%), and autoimmune inner-ear disease (4%). The most common major complications were CSF leak (0.4%), skin necrosis (0.2%), meningitis (0.1%), facial paralysis (0.07%) and massive haemorrhage (0.05).
Conclusion:
Cochlear implantation continues to be reliable and safe in experienced hands, with a very low percentage of severe complications.
