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Updated: May 26, 2026

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
Published on: August 4, 2023
Complications related to cochlear implants: experience in Tehran
Akbar Pirzadeh1, Mohammad Khorsandi, Mohammad-Ali Mohammadi
1Department of Surgery School of Medicine, Tehran University of Medical Science, Tehran, Iran.
Objective:
Cochlear implantation (CI) is an effective treatment for profound deaf patients. To study the cochlear implant complications in patients at Amir Aalam Hospital.
Methods:
The study population involved 177 profoundly deaf patients, implanted within the same cochlear implant center.
Results:
Twenty-four (13.6%) patients experienced complications. Early complications accrued in 9 (37.7%) patients within the first 24 hours. Eight (4.5%) patients had major complications including facial nerve paralysis, suture rupture and prosthesis rejection. Prosthesis rejection 6 (30%) was the most frequent major complication. Minor complications were found in 16 (9%) cases which were managed medically. Older age with CI was correlated with higher major complications.
Conclusion:
In contrast to minor complications, the frequency of major complications in this cohort was higher than that published by other groups.
