Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo Presenting with Torsional Downbeating Nystagmus : An Apogeotropic Variant
Joint Authors
Pecci, Rudi
Giannoni, Beatrice
Vannucchi, Paolo
Source
International Journal of Otolaryngology
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-08-28
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The aim of this study is to verify the hypothesis that free-floating particles could sometimes localize into the distal portion of the non ampullary arm of the posterior semicircular canal (PSC) so that assuming the Dix-Hallpike’s positions, the clot could move towards the ampulla eliciting a inhibitory torsional-down beating paroxysmal positional nystagmus (PPNy), instead of typical excitatory torsional-up beating PPNy.
Among 45 patients with vestibular signs suggesting anterior semicircular canal paroxysmal positional vertigo (PPV), collected from February 2003 to August 2006, we detected a group of 6 subjects whose clinical findings showed a singular behaviour during follow-up.
At the first check-up, all patients were submitted to different types of physical manoeuvres for ASC canalolithiasis.
Patients were controlled during the same session and after one week.
When we found that nystagmus was qualitatively changed we adopted the appropriate physical therapies for that sign.
At a next check-up, after having performed some physical therapies, all patients had a typical PSC PPNy of the opposite side, with respect to that of the ASC initially diagnosed.
Basing on these observations we conclude that PSC PPV, similarly to lateral semicircular canal PPV, could manifests in a apogeotropic variant.
American Psychological Association (APA)
Vannucchi, Paolo& Pecci, Rudi& Giannoni, Beatrice. 2012. Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo Presenting with Torsional Downbeating Nystagmus : An Apogeotropic Variant. International Journal of Otolaryngology،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-470183
Modern Language Association (MLA)
Vannucchi, Paolo…[et al.]. Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo Presenting with Torsional Downbeating Nystagmus : An Apogeotropic Variant. International Journal of Otolaryngology No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-470183
American Medical Association (AMA)
Vannucchi, Paolo& Pecci, Rudi& Giannoni, Beatrice. Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo Presenting with Torsional Downbeating Nystagmus : An Apogeotropic Variant. International Journal of Otolaryngology. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-470183
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-470183