Complications in cochlear implantation

Abstract

Cochlear implantation is an established method of auditory rehabilitation for the severe and profoundly hearing impaired; however, it may cause complications. This study focused upon the intraoperative problems and postoperative complications of cochlear implantation. The medical records of 430 patients who underwent cochlear implantation at our center from November 1988 through March 2004 were analyzed retrospectively. Major complications were reported in nine cases (2.1%), which included one device explantation. Minor complications (25 cases, 5.8%) such as dizziness, skin rash and hematoma were self-limited. The mechanical device failures were identified in nine cases (2.1%). The causes of the postoperative complications were examined, and the management methods and the results obtained are described. Surgeons must be prepared to cope with the intra- and postoperative problems associated with cochlear implantation. A careful preoperative evaluation would reduce the frequency of serious complications.