Document Detail

Re-evaluation of normative electronystagmography data in healthy ageing.
MedLine Citation:
PMID:  10971529     Owner:  NLM     Status:  MEDLINE    
Previous work by our group questions the validity of existing electronystagmography (ENG) reference ranges in the elderly. We aim to establish valid reference ranges for ENG in people over 65 on the Nicolet Nystar Plus system. Ninety-six healthy asymptomatic subjects over 65 underwent ENG, including spontaneous and positional nystagmus, saccades, smooth pursuit, optokinetic nystagmus and bithermal calorics; 95% reference ranges with confidence intervals were calculated. The newly determined reference ranges were far wider than those provided by the ENG equipment manufacturer for eight out of 11 parameters (all P < 0.001). Vestibular function is known to deteriorate and become more variable with age. The failure to reflect this change in currently used reference ranges may have contributed to the high rates of vestibular disease reported in some series of dizzy elderly patients. Clinical interpretation of ENG depends on valid reference ranges.
D Hajioff; R M Barr-Hamilton; N R Colledge; S J Lewis; J A Wilson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical otolaryngology and allied sciences     Volume:  25     ISSN:  0307-7772     ISO Abbreviation:  Clin Otolaryngol Allied Sci     Publication Date:  2000 Aug 
Date Detail:
Created Date:  2000-10-19     Completed Date:  2000-10-19     Revised Date:  2005-05-02    
Medline Journal Info:
Nlm Unique ID:  7701793     Medline TA:  Clin Otolaryngol Allied Sci     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  249-52     Citation Subset:  IM    
Department of Otolaryngology, Freeman Hospital, Newcastle, Department of Audiology and Department of Medicine, University of Edinburgh, UK.
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MeSH Terms
Aged, 80 and over
Aging / physiology*
Electronystagmography* / instrumentation
Reference Values

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

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