title: Evaluation of residual hearing in cochlear implants candidates using auditory steady-state response.
abstract: CONCLUSIONS
  The correlations between behavioral and auditory steady-state response (ASSR) thresholds were significant at 500, 1000, 2000, and 4000 Hz. ASSR presented high sensitivity and specificity in the detection of residual hearing in cochlear implant candidates when compared with warble-tone audiometry.
  
  
  OBJECTIVE
  To assess residual hearing in cochlear implant candidates by comparing the electrophysiological thresholds obtained in dichotic single-frequency ASSR with behavioral thresholds at 500, 1000, 2000, and 4000 Hz.
  
  
  METHODS
  This was a comparative study between ASSR and warble-tone audiometry thresholds in 40 cochlear implant candidates (80 ears) before cochlear implantation with bilateral severe-to-profound sensorineural hearing loss.
  
  
  RESULTS
  Thresholds were obtained in 62.5% of all frequencies evaluated in warble-tone audiometry and in 63.1% in the ASSR. ASSR sensitivity was 96% and specificity was 91.6%. Mean differences between behavioral and ASSR thresholds did not reach significance at any frequencies. Strong correlations between behavioral and ASSR thresholds were observed in 500, 1000, and 2000 Hz and moderate in 4000 Hz, with correlation coefficients varying from 0.65 to 0.81. On 90% of occasions, ASSR thresholds were acquired within 10 dB of behavioral thresholds.
authors: Department of Otolaryngology, University of São Paulo School of Medicine , São Paulo , Brazil.
authors: Henrique Faria
authors: HF
authors: Ramos
authors: Signe Schuster
authors: SS
authors: Grasel
authors: Roberto Miquelino de Oliveira
authors: RM
authors: Beck
authors: Marystella Tomoe
authors: MT
authors: Takahashi-Ramos
authors: Bernardo Faria
authors: BF
authors: Ramos
authors: Edigar Resende
authors: ER
authors: de Almeida
authors: Ricardo Ferreira
authors: RF
authors: Bento
authors: Rubens
authors: R
authors: de Brito Neto
mesh_terms: D000293:Adolescent; D000328:Adult; D001299:Audiometry / Q000379:methods*; D001309:Auditory Threshold; D019929:Cochlear Implantation; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis* / Q000523:psychology / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D055815:Young Adult
keywords: Auditory evoked potentials; auditory thresholds; cochlear implantation; residual hearing; sensorineural hearing loss