Document Detail

Hearing thresholds in newborns with a cleft palate assessed by auditory brain stem response.
MedLine Citation:
PMID:  18333645     Owner:  NLM     Status:  MEDLINE    
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%).
Narayanan Viswanathan; Michael Vidler; Bruce Richard
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association     Volume:  45     ISSN:  1055-6656     ISO Abbreviation:  Cleft Palate Craniofac. J.     Publication Date:  2008 Mar 
Date Detail:
Created Date:  2008-03-12     Completed Date:  2008-06-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9102566     Medline TA:  Cleft Palate Craniofac J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  187-92     Citation Subset:  D; IM    
Breoomfield Hospital, St. Andrews Centre for Burns and Plastic Surgery, Chelmsford, UK.
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MeSH Terms
Auditory Threshold / physiology*
Bone Conduction / physiology
Cleft Palate / classification,  physiopathology*
Cohort Studies
Deafness / diagnosis,  physiopathology
Evoked Potentials, Auditory, Brain Stem / physiology*
Hearing / physiology*
Hearing Loss / diagnosis,  physiopathology
Hearing Loss, Bilateral / diagnosis,  physiopathology
Hearing Loss, Conductive / diagnosis,  physiopathology
Infant, Newborn
Retrospective Studies
Sleep / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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