Document Detail

Assessment of medial olivocochlear system function in pre-term and full-term newborns using a rapid test of transient otoacoustic emissions.
MedLine Citation:
PMID:  15113308     Owner:  NLM     Status:  MEDLINE    
This study was conducted to investigate maturation of the medial olivocochlear efferent system (MOCS) in pre- and full-term neonates using Quickscreen (Otodynamics Ltd) and to confirm previous findings on transient otoacoustic emission (TEOAE) suppression in neonates. MOCS maturation was investigated in 46 neonates born at the Chaim Sheba Medical Center, Tel Hashomer, Israel, using Quickscreen. All neonates were normal with no family history of general or auditory disease and no risk factors for hearing impairment. MOCS function appears gradually in human pre-term neonates and is considered to reach maturity shortly after term birth. The clinical value of MOCS testing in specific populations of newborns at risk for hearing and/or brainstem function can be legitimately raised as activation of the MOCS clearly alters cochlear output. The present results can be interpreted to support the testing of infants at risk of developing abnormal MOCS function using a commercially available rapid TEOAE measurement system.
T Morlet; A Hamburger; J Kuint; D Ari-Even Roth; M Gartner; C Muchnik; L Collet; M Hildesheimer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical otolaryngology and allied sciences     Volume:  29     ISSN:  0307-7772     ISO Abbreviation:  Clin Otolaryngol Allied Sci     Publication Date:  2004 Apr 
Date Detail:
Created Date:  2004-04-28     Completed Date:  2004-08-06     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7701793     Medline TA:  Clin Otolaryngol Allied Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  183-90     Citation Subset:  IM    
Kresge Hearing Research Laboratory of the South, New Orleans, LA 70112, USA.
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MeSH Terms
Acoustic Stimulation
Audiometry, Evoked Response / methods*
Cochlea / innervation*,  physiology
Efferent Pathways / physiology
Hair Cells, Auditory, Outer / physiology
Infant, Newborn / physiology*
Infant, Premature / physiology*
Neonatal Screening / methods
Olivary Nucleus / physiology*
Otoacoustic Emissions, Spontaneous*

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