Abstract
Many patients with cochlear implantation can use the devices very stably and comfortably after several months of rehabilitation for auditory communication.
Some patients, however, may have clinical problems even more than one year after operation. They may suffer from otitis media in operated ears, electrode disorder, or extrusion of the implanted devices out of skin. In three cases we have experienced such problems, treatment needed for disorder was not similar; topical cleaning of the implanted ear was effective in one case and operation were performed in two cases. The effect of trouble on their hearing also varied in each case, and mapping of the electrodes needed to be readjusted in all three cases. Their clinical course and our procedure are reported in this article.
