Clinical Investigation of the Nucleus® CI532 Cochlear Implant

Inclusion Criteria: * Eighteen years of age or older at the time of implantation * Conventional candidate for cochlear implantation with a perimodiolar electrode array according to local criteria (excepting the exclusion criteria that follow) * Native speaker in the local language used to assess clinical performance Exclusion Criteria: * Evidence of hearing loss prior to 5 years of age * Prior cochlear implantation; i.e. having a cochlear implant in the contralateral ear, or previously implanted in either ear * Medical or psychological conditions that contraindicate undergoing general anaesthesia or surgery * Ossification, malformation or any other cochlear anomaly, such as common cavity, that might prevent complete insertion of the electrode array, as confirmed by medical examination * Hearing impairment due to lesion or neuropathy of the acoustic nerve, VIII nerve or central auditory pathway * Active middle-ear infection * Tympanic membrane perforation * Unrealistic expectations on the part of the subject, regarding the possible benefits, risks, and limitations that are inherent to the surgical procedure(s) and prosthetic devices * Unwillingness or inability of the candidate to comply with all investigational requirements such as undergoing a post-operative digital volume tomography/ConeBeam scan * Patients with existing Cerebral Spinal Fluid shunts or drains, existing perilymph fistula, skull fracture or Cerebral Spinal Fluid leak * Patients with recurrent episodes of bacterial meningitis * Pregnancy or breast-feeding * Known allergies to components of the implant * Wearing other active implants with known interference with cochlear implants