title: Cochlear implants: our experience and literature review.
abstract: BACKGROUND
  Cochlear Implants are important for individuals with severe to profound bilateral sensorineural hearing loss.
  
  
  OBJECTIVE
  Evaluate the experience of cochlear implant center of Otorhinolaryngology through the analysis of records of 9 patients who underwent cochlear implant surgery.
  
  
  METHODS
  This is a retrospective study performed with the patients records. Number 0191.0.107.000-11 ethics committee approval. We evaluated gender, etiology, age at surgery, duration of deafness, classification of deafness, unilateral or bilateral surgery, intraoperative and postoperative neural response and impedance of the electrodes in intraoperative and preoperative tests and found those that counter-indicated surgery.
  
  
  RESULTS
  There were 6 pediatric and 3 adult patients. Four male and 5 female. Etiologies: maternal rubella, cytomegalovirus, ototoxicity, meningitis, and sudden deafness. The age at surgery and duration of deafness ranged from 2-46 years and 2-18 years, respectively. Seven patients were pre-lingual. All had profound bilateral PA. There were 7 bilateral implants. Intraoperative complications: hemorrhage. Complications after surgery: vertigo and internal device failure. In 7 patients the electrodes were implanted through. Telemetry showed satisfactory neural response and impedance. CT and MRI was performed in all patients. We found enlargement of the vestibular aqueduct in a patient and incudomalleolar malformation.
  
  
  CONCLUSIONS
  The cochlear implant as a form of auditory rehabilitation is well established and spreading to different centers specialized in otoaudiology. Thus, the need for structured services and trained professionals in this type of procedure is clear.
authors.affiliation: Doctor. Specializing in Otolaryngology.
authors.forename: Mariane Barreto Brandão
authors.initials: MB
authors.lastname: Martins
authors.affiliation: Doctor. Specializing in Otolaryngology.
authors.forename: Francis Vinicius Fontes
authors.initials: FV
authors.lastname: de Lima
authors.affiliation: Doctor of Medicine (Otolaryngology), University of Sao Paulo. Head of the Department of Otorhinolaryngology, University Hospital, Faculty of Medicine, Federal University of Sergipe.
authors.forename: Ronaldo Carvalho
authors.initials: RC
authors.lastname: Santos
authors.affiliation: Otorhinolaryngologist. Teacher of the Residents of Otorhinolaryngology of the University Hospital of the Faculty of Medicine of the Federal University of Sergipe.
authors.forename: Arlete Cristina Granizo
authors.initials: AC
authors.lastname: Santos
authors.affiliation: Master of Health Sciences, Federal University of Sergipe. Teacher of the Residents of Otorhinolaryngology of the University Hospital of the Faculty of Medicine of the Federal University of Sergipe.
authors.forename: Valéria Maria Prado
authors.initials: VM
authors.lastname: Barreto
authors.affiliation: Otorhinolaryngologist. Teacher of the Residents of Otorhinolaryngology of the University Hospital of the Faculty of Medicine of the Federal University of Sergipe.
authors.forename: Eduardo Passos Fiel
authors.initials: EP
authors.lastname: de Jesus
keywords: cochlear implants; hearing loss; sensorineural