Predictive value of ABR in infants and children with moderate to profound hearing impairment.
Click and 500 Hz tone pip ABR thresholds obtained in infancy were compared to pure-tone thresholds in 25 preschool-aged patients with moderate to profound hearing impairments. The electrophysiologic thresholds obtained in infancy were generally lower than the recent audiometric thresholds. Clicks best predicted the lowest pure-tone threshold within the 1 to 8 kHz range. The 500 Hz tone-pip thresholds were closest to the lowest of 250 Hz and 500 Hz pure-tone thresholds. Regression analyses involving audiometric and electrophysiologic thresholds and 95% confidence intervals of the differences between their means provide a basis for behavioral threshold prediction in this patient group.
D001300:Audiometry, Evoked Response; D001301:Audiometry, Pure-Tone; D002675:Child, Preschool; D005260:Female; D006311:Hearing Disorders / Q000175:diagnosis*; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis; D006801:Humans; D007223:Infant; D008297:Male; D013997:Time Factors