title: Outcomes of Adolescents With a Short Electrode Cochlear Implant With Preserved Residual Hearing.
abstract: OBJECTIVE
  The purpose of this study was to determine if adolescents with preserved residual low-frequency hearing can develop improved speech perception and maintain localization abilities by combining their acoustic hearing with electrical processing from a short electrode cochlear implant.
  
  
  METHODS
  Repeated-measure, single-subject experiment.
  
  
  METHODS
  Research hospital.
  
  
  METHODS
  Adolescents with sensorineural hearing loss with a pure-tone average (PTA) between 60 and 90 dB HL between 125 and 1500 Hz and profound loss at higher frequencies.
  
  
  METHODS
  rehabilitative.
  
  
  METHODS
  Five adolescents received a short electrode cochlear implant in their poorer ear. Audiometric, speech perception in quiet (CNC words), localization, speech production, and language outcomes were collected pre- and postoperatively at 4, 8, 12, and 24 months.
  
  
  RESULTS
  Functional hearing preservation was accomplished in all subjects at initial activation and was maintained through 24 months. In the Combined and Hybrid conditions, all subjects showed significant improvements by 4 months postimplantation, with exception of Subject 2 in the Combined condition, who showed a significant improvement by 8 months postimplantation. Results also indicated that all subjects continue to have localization abilities postimplantation.
  
  
  CONCLUSIONS
  All of the subjects have benefitted from the combined electric and acoustic processing for speech perception abilities. The results from this study suggest that it could be worthwhile to consider acoustic and electric hearing in the adolescent population that have some low-frequency residual hearing and are struggling with hearing aids.
authors.affiliation: *Department of Otolaryngology-Head and Neck Surgery †Department of Communication Disorders, University of Iowa, Iowa City, Iowa, U.S.A.
authors.forename: Bruce J
authors.initials: BJ
authors.lastname: Gantz
authors.forename: Camille
authors.initials: C
authors.lastname: Dunn
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Walker
authors.forename: Tanya
authors.initials: T
authors.lastname: Van Voorst
authors.forename: Stephanie
authors.initials: S
authors.lastname: Gogel
authors.forename: Marlan
authors.initials: M
authors.lastname: Hansen
mesh_terms: D000293:Adolescent; D003051:Cochlea / Q000601:surgery; D019929:Cochlear Implantation / Q000379:methods; D003054:Cochlear Implants; D005260:Female; D006309:Hearing / Q000502:physiology*; D006319:Hearing Loss, Sensorineural / Q000601:surgery*; D006320:Hearing Tests; D006801:Humans; D008297:Male; D011184:Postoperative Period; D013067:Speech Perception / Q000502:physiology*; D016896:Treatment Outcome