Document Detail

Vestibular evoked myogenic potentials in newborns.
MedLine Citation:
PMID:  17119334     Owner:  NLM     Status:  MEDLINE    
This study presents a novel method for recording vestibular evoked myogenic potential (VEMP) in newborns, used to investigate the maturation of sacculocollic reflex at birth. Twenty full-term newborns aged 2-5 days old were enrolled in this study. During natural sleep, each newborn underwent distortion product otoacoustic emission test, and VEMP test using the head rotation method. For comparison, 20 healthy adults also underwent VEMP test using the same method. Based on adult criteria, 40 newborn ears revealed normal VEMPs in 40%, prolonged VEMPs in 35%, and absent VEMPs in 25%, indicating that great variation exists in the maturation of the sacculocollic reflex at birth. Comparison of VEMP characteristics between healthy newborns and adults revealed nonsignificant difference in the response rate and the latency of n23. However, significant differences existed in the latency of p13, interpeak p13-n23 interval and p13-n23 amplitude between newborns and adults. In conclusion, VEMPs in newborns can be easily recorded by the head rotation method. Prolonged or absent VEMPs in newborns may reflect incomplete maturity of the sacculocollic reflex pathway, especially the myelination. A further large number of newborns receiving MRI scan for other reasons may undergo VEMP test to verify this hypothesis.
Chun-Nan Chen; Shou-Jen Wang; Chi-Te Wang; Wu-Shiun Hsieh; Yi-Ho Young
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-11-20
Journal Detail:
Title:  Audiology & neuro-otology     Volume:  12     ISSN:  1420-3030     ISO Abbreviation:  Audiol. Neurootol.     Publication Date:  2007  
Date Detail:
Created Date:  2006-12-28     Completed Date:  2007-02-06     Revised Date:  2009-11-03    
Medline Journal Info:
Nlm Unique ID:  9606930     Medline TA:  Audiol Neurootol     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  59-63     Citation Subset:  IM    
Copyright Information:
Copyright 2007 S. Karger AG, Basel.
Department of Otolaryngology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
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MeSH Terms
Acoustic Stimulation / methods
Evoked Potentials / physiology*
Infant, Newborn
Muscle, Skeletal / physiology*
Neonatal Screening / methods
Vestibular Function Tests*

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