title: Refining the audiological assessment in children using narrow-band CE-Chirp-evoked auditory steady state responses.
abstract: OBJECTIVE
  To demonstrate the feasibility and reliability of simultaneous binaural recording of auditory steady-state responses (ASSR) in young children using narrow-band CE-Chirps as stimuli.
  
  
  METHODS
  Prospective cohort study comparing ASSR thresholds to four frequency stimuli (0.5, 1, 2, and 4 kHz), with click-evoked auditory brainstem responses (ABR) and behavioral response audiometry.
  
  
  METHODS
  Thirty-two young children (mean age 7.4 ± 5.2 months) referred for auditory assessment were evaluated.
  
  
  RESULTS
  The mean duration for ABR recordings was 13.3 ± 7.2 min versus 22.9 ± 15.8 min for ASSR (p < 0.01). ASSR (means of 2 and 4 kHz thresholds) were highly correlated with ABR thresholds (R2 = 0.935, p < 0.001), though significantly different (3 ± 10.7 dB, p = 0.02). ASSR (means of 0.5, 1, 2, and 4 kHz thresholds) were highly correlated with mean behavioral response audiometry thresholds (R2 = 0.968, p < 0.001). ASSRs were highly and significantly correlated with behavioral response audiometry at 0.5, 1, 2, and 4 kHz (R2 = 0.845, 0.907, 0.929, and 0.859 respectively, p < 0.001). 87.5% and 90.7% ASSR thresholds were within a ± 10 dB range around their corresponding ABR and mean behavioral response audiometry thresholds.
  
  
  CONCLUSIONS
  Narrow-band CE-Chirps allow a fast and reliable assessment of auditory thresholds in children, especially in the low-frequency range, by comparison with other stimuli.
authors.affiliation: * ENT Department and University Montpellier 1, University Hospital Gui de Chauliac , Montpellier , France.
authors.forename: Frederic
authors.initials: F
authors.lastname: Venail
authors.forename: Jean Pierre
authors.initials: JP
authors.lastname: Artaud
authors.forename: Catherine
authors.initials: C
authors.lastname: Blanchet
authors.forename: Alain
authors.initials: A
authors.lastname: Uziel
authors.forename: Michel
authors.initials: M
authors.lastname: Mondain
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods*; D001300:Audiometry, Evoked Response / Q000379:methods*; D001309:Auditory Threshold / Q000502:physiology*; D015331:Cohort Studies; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011446:Prospective Studies; D015203:Reproducibility of Results
keywords: Pediatric; behavioral measures; electrophysiology; medical audiology