title: Speech recognition after implantation of the ossified cochlea.
abstract: OBJECTIVE
  Insertion of complex, multichannel cochlear implant (CI) electrode arrays into ossified cochleas is now performed routinely. This study describes the hearing results obtained in a consecutive series of 21 patients with obstructed cochleas and compares these results to those in patients with open cochleas. The purpose of this study was to determine whether patients with ossification have speech perception results that are inferior to those of patients with no evidence of cochlear bone formation.
  
  
  METHODS
  Retrospective analysis of consecutive clinical series.
  
  
  METHODS
  CI database review of 191 CI procedures at the University of Miami Ear Institute between 1990 and 1997 showed that 24 (13%) procedures were performed on patients with ossified cochleas. Open-set speech recognition scores obtained on the 11 pediatric and 7 adult English-speaking patients are compared to scores of 51 adult and 61 pediatric English-speaking CI patients with open scala.
  
  
  RESULTS
  Results of open-set speech recognition measures in adults and children with ossified cochleas were not significantly different from those of the reference groups.
  
  
  CONCLUSIONS
  Speech recognition results of patients with ossified cochleas are essentially equal to those of patients with open cochleas. Degree of obstruction appears to have less effect on outcome than other factors such as duration of profound deafness or communication methodology in children among this group.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, University of Miami Ear Institute, Florida, USA.
authors.forename: A V
authors.initials: AV
authors.lastname: Hodges
authors.forename: T J
authors.initials: TJ
authors.lastname: Balkany
authors.forename: O
authors.initials: O
authors.lastname: Gomez-Marin
authors.forename: S
authors.initials: S
authors.lastname: Butts
authors.forename: S D
authors.initials: SD
authors.lastname: Ash
authors.forename: P
authors.initials: P
authors.lastname: Bird
authors.forename: D
authors.initials: D
authors.lastname: Lee
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D003051:Cochlea / Q000601:surgery*; D019929:Cochlear Implantation / Q000379:methods*; D003638:Deafness / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000175:diagnosis / Q000601:surgery*; D011184:Postoperative Period; D012189:Retrospective Studies; D012720:Severity of Illness Index; D013067:Speech Perception / Q000502:physiology*