Cochlear implantation in different stages of otosclerosis: difficulties and outcomes

This study is to evaluate the results obtained in a group of implanted otosclerotic patients and compare them with a matching group of non- otosclerosis cochlear implant patients.

Pre-operative computed tomographic scans, intra-operative findings, type of electrode used and difficulties of 17 patients with otosclerosis were documented. Post-operative complications, facial nerve stimulation, electrode dislocation and audiological and speech outcomes were documented and the data analysed.

Surgical difficulties were directly related to the advanced stage of the disease. No major complications were reported in this cohort. No significant difference was found between both groups one year after surgery; the mean pure tone average was 35 dB ± 4.43, speech reception threshold was 40 ± 4.96 and speech discrimination score was 80 per cent ± 12.55 in the otosclerotic group.

Cochlear implantation is a safe and effective management for advanced otosclerosis patients even after stapes surgery.