title: The British Columbia's Children's Hospital tone-evoked auditory brainstem response protocol: how long do infants sleep and how much information can be obtained in one appointment?
abstract: There are few published reports providing quantitative information of clinical feasibility for tone-evoked auditory brainstem response (ABR) protocols. In this study, the authors reviewed charts of 188 ABR assessments during a 20-mo period: 116 sedated (median age, 23 mos) and 72 nonsedated (median age, 4 mos). Fifty-one percent of infants had normal thresholds. The average amount of sleep time was 58 mins for sedated assessments, during which an average of 7.6 measures were obtained; nonsedated assessments averaged 49 mins with 6.2 measures obtained. Thus, a substantial amount of both test time and information about hearing can be obtained within one ABR appointment.
authors.affiliation: Audiology Department, British Columbia's Children's Hospital (BCCH), Victoria, British Columbia, Canada.
authors.forename: Renée M
authors.initials: RM
authors.lastname: Janssen
authors.forename: Laurie
authors.initials: L
authors.lastname: Usher
authors.forename: David R
authors.initials: DR
authors.lastname: Stapells
mesh_terms: D001071:Appointments and Schedules; D001301:Audiometry, Pure-Tone / Q000379:methods*; D001309:Auditory Threshold / Q000502:physiology; D001955:British Columbia; D002697:Chloral Hydrate / Q000008:administration & dosage*; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005240:Feasibility Studies; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis* / Q000503:physiopathology; D006776:Hospitals, Pediatric; D006801:Humans; D006993:Hypnotics and Sedatives / Q000008:administration & dosage*; D007223:Infant; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology; D012890:Sleep / Q000187:drug effects*; D014851:Wakefulness
chemical_list: D006993:Hypnotics and Sedatives; D002697:Chloral Hydrate