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Comparison of techniques for identification of peripheral vestibular nystagmus.
MedLine Citation:
PMID:  23098070     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objective: To determine the best clinical method for identifying peripheral vestibular nystagmus, by comparing eye movement examination with optic fixation, and with fixation removed using Frenzel's glasses, infra-red video-Frenzel's goggles or an ophthalmoscope, with results of electronystagmography. Method: One hundred patients referred for electronystagmography from the audiovestibular medicine clinic at Queen Alexandra Hospital, Portsmouth, were examined immediately before undergoing electronystagmography. Results: Video-Frenzel's goggles were highly effective at detecting peripheral vestibular nystagmus, with a sensitivity of 85 per cent (95 per cent confidence interval, 62.1-96.8 per cent) and a specificity of 65 per cent (53.5-75.3 per cent), compared with electronystagmography. Ophthalmoscopy had comparable sensitivity to Frenzel's glasses (used in the dark), i.e. 26.3 per cent (9.1-51.2 per cent) compared with 31.6 per cent (12.6-56.6 per cent), respectively. Frenzel's glasses as normally used in ENT clinics (i.e. in dim lighting) were ineffective, with a sensitivity of just 10 per cent (1.2-31.7 per cent). Conclusion: Video-Frenzel's goggles should be used in all clinics with substantial numbers of balance-impaired patients. Traditional Frenzel's glasses have no place in clinical practice unless formal black-out facilities are available.
Authors:
P D B West; Z A Sheppard; E V King
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-26
Journal Detail:
Title:  The Journal of laryngology and otology     Volume:  -     ISSN:  1748-5460     ISO Abbreviation:  J Laryngol Otol     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8706896     Medline TA:  J Laryngol Otol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-7     Citation Subset:  -    
Affiliation:
Department of Audiovestibular Medicine, Queen Alexandra Hospital, Portsmouth, UK.
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