Document Detail

Relationship between neurological asymptomatic vertigo and the vertebrobasilar system as revealed by magnetic resonance angiography.
MedLine Citation:
PMID:  10729794     Owner:  NLM     Status:  MEDLINE    
Many patients suffering from vertigo have no neurological symptoms except for a positional nystagmus. Vertigo without any neurological findings has not been thought to be a vertebrobasilar (VB) attack. The purpose of this study is to clarify the relationship between vertigo without any neurological symptoms and the VB system using magnetic resonance angiography (MRA). MRAs of the VB system were examined in 31 patients with positional nystagmus of unknown origin (PNU) and in 14 patients with benign paroxysmal positional vertigo (BPPV) as control. MRA was performed with a 1.5-tesla system using the two-dimensional time-of-flight technique. Abnormalities such as elongation, bending, narrowing or obstruction of the artery were detected in 27 patients of the PNU group and 8 patients of the BPPV group. A significant difference in the abnormalities was noticed between the two groups (p < 0.05; chi(2) test). This result is almost similar to those of previous studies using conventional vertebral angiography and digital subtraction angiography. Thus, MRA is useful in examination of the VB system. Moreover, our study suggested that the positional nystagmus might result from VB ischemia, even if there were no other neurological signs.
T Seo; S Tominaga; M Sakagami
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  ORL; journal for oto-rhino-laryngology and its related specialties     Volume:  62     ISSN:  0301-1569     ISO Abbreviation:  ORL J. Otorhinolaryngol. Relat. Spec.     Publication Date:    2000 Mar-Apr
Date Detail:
Created Date:  2000-05-25     Completed Date:  2000-05-25     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0334721     Medline TA:  ORL J Otorhinolaryngol Relat Spec     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  63-7     Citation Subset:  IM    
Copyright Information:
Copyright 2000 S. Karger AG, Basel
Department of Otolaryngology, Hyogo College of Medicine, Nishinomiya, Japan.
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MeSH Terms
Aged, 80 and over
Basilar Artery / pathology
Blood Flow Velocity
Magnetic Resonance Angiography* / methods
Middle Aged
Nystagmus, Physiologic*
Vertebral Artery / pathology
Vertebrobasilar Insufficiency / complications*,  diagnosis
Vertigo / etiology*

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