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Updated: Jul 6, 2026
Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
Hearing thresholds in newborns with a cleft palate assessed by auditory brain stem response
Narayanan Viswanathan1, Michael Vidler, Bruce Richard
1Breoomfield Hospital, St. Andrews Centre for Burns and Plastic Surgery, Chelmsford, UK. viswanara@aol.com
Objective:
To objectively estimate the extent of hearing loss in infants with cleft palate and to measure the incidence of hearing loss.
Design:
Retrospective consecutive case note review.
Setting:
Tertiary institutional regional referral center for cleft lip and palate.
Patients, Participants:
Consecutive cases of 90 infants with cleft palate who underwent auditory brain stem response (ABR) threshold estimation.
Interventions:
ABR threshold estimation during natural sleep in infants with cleft palate under 2 months of age.
Main Outcome Measures:
Hearing level thresholds as estimated by auditory brain stem response and categorized as normal (< 25 < or = 35 dB nHL) , mild (> 35 < or = 45 dB nHL), moderate (> 45 < or = 65 dB nHL), severe (> 65 < or = 90 dB nHL), and profound (> 90 dB nHL) hearing loss.
Results:
Hearing loss was present in 82% of the infants tested. Most of the hearing loss was conductive (89%), mild (86%), and bilateral (84%). Average age of ABR threshold estimation was 48.5 days. In 22% of infants there was an associated syndrome. The mean air conduction thresholds for the right and left ear were 40 and 39.7, respectively.
Conclusion:
The incidence of hearing loss in a cohort of cleft palate infants has been objectively estimated by auditory brain stem response thresholds and was found to be very high (82%).
