Document Detail


Frequency-specific BERA in infants.
MedLine Citation:
PMID:  3864989     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Click BERA has several limitations, both physical and physiological, for early audiological assessment. It cannot quantify the audiometric contour, detect high or low frequency hearing loss, or reveal residual low frequency hearing. Several methods of cochlear place-specific BERA are reviewed briefly. BERA using tonepip stimuli in band-reject masking noise is described in more detail for both nil-risk and at-risk infants. Technical and normative problems are outlined. Most babies give clear ABRs to 40 dBnHL tonepips, but threshold distributions are broader at 500 Hz than for higher frequency tonepips or clicks. Thresholds improve over the first four months, especially at 500 Hz. Cases of click/tonepip threshold differences are presented. Place-specific testing may be a useful component of early assessment. Further research is needed to determine its limitations and relevance to early management.
Authors:
M L Hyde
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of otolaryngology. Supplement     Volume:  14     ISSN:  0707-7270     ISO Abbreviation:  J Otolaryngol Suppl     Publication Date:  1985 Feb 
Date Detail:
Created Date:  1985-12-24     Completed Date:  1985-12-24     Revised Date:  2008-02-29    
Medline Journal Info:
Nlm Unique ID:  7708963     Medline TA:  J Otolaryngol Suppl     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  19-27     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Acoustic Stimulation
Asphyxia Neonatorum / physiopathology
Audiometry, Evoked Response*
Auditory Threshold / physiology
Brain Stem / physiopathology*
Evoked Potentials, Auditory
Hearing Loss, Central / physiopathology
Hearing Loss, Sensorineural / diagnosis,  physiopathology*
Humans
Infant, Newborn
Infant, Premature, Diseases / diagnosis,  physiopathology*
Intensive Care Units, Neonatal
Perceptual Masking / physiology
Pitch Perception / physiology*
Reaction Time / physiology
Reference Values

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


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