Document Detail

A newly recognised cause of vertigo: horizontal canal variant of benign positional vertigo.
MedLine Citation:
PMID:  16222353     Owner:  NLM     Status:  MEDLINE    
AIMS: To describe the presentation, causes, treatment, and outcomes of patients presenting with the newly recognised horizontal canal variant of benign positional vertigo (BPV); and to emphasise the importance of performing a positional test on all patients being assessed for vertigo. METHODS: The records on 400 patients presenting with BPV were analysed. Two detailed patient histories from 2004 are included. RESULTS: Forty-nine patients (12%) had horizontal canal BPV. The median presentation age was 59 years. In 17 patients, it presented de novo during repositioning treatment for 'classical' posterior canal BPV. Repositioning is in the horizontal plane, with the direction depending on whether the mechanism is canalithiasis or cupulolithiasis. CONCLUSIONS: Horizontal canal BPV explains nearly all variations on 'classical' (posterior canal) BPV. It accounts for at least 10% of BPV and has been frequently misdiagnosed. Repositioning is usually curative if the symptomatic ear is correctly identified.
Jeremy Hornibrook
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Publication Detail:
Type:  Case Reports; Journal Article     Date:  2005-09-16
Journal Detail:
Title:  The New Zealand medical journal     Volume:  118     ISSN:  1175-8716     ISO Abbreviation:  N. Z. Med. J.     Publication Date:  2005 Sep 
Date Detail:
Created Date:  2005-10-13     Completed Date:  2006-01-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401067     Medline TA:  N Z Med J     Country:  New Zealand    
Other Details:
Languages:  eng     Pagination:  U1659     Citation Subset:  IM    
Department of Otolaryngology-HNS, Christchurch Hospital, Christchurch, New Zealand.
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MeSH Terms
Aged, 80 and over
Ear Canal*
Lithiasis / complications*
Middle Aged
Nystagmus, Pathologic / diagnosis,  etiology
Vertigo / diagnosis*,  etiology*,  therapy
Vomiting / etiology

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