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Cleft Palate Craniofac J. 2008 Mar;45(2):187-92. doi: 10.1597/06-078.1.

Hearing thresholds in newborns with a cleft palate assessed by auditory brain stem response.

Author information

1
Breoomfield Hospital, St. Andrews Centre for Burns and Plastic Surgery, Chelmsford, UK. viswanara@aol.com

Abstract

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%).

PMID:
18333645
DOI:
10.1597/06-078.1
[Indexed for MEDLINE]

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