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Intractable Persistent Direction-Changing Geotropic Nystagmus Improved by Lateral Semicircular Canal Plugging
Joint Authors
Seo, Toru
Saito, Kazuya
Doi, Katsumi
Source
Case Reports in Otolaryngology
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-3, 3 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-01-01
Country of Publication
Egypt
No. of Pages
3
Main Subjects
Abstract EN
Antigravitational deviation of the cupula of the lateral semicircular canal, which is also called light cupula, evokes persistent direction-changing geotropic nystagmus with a neutral point.
No intractable cases of this condition have been reported.
In our case, a 67-year-old man complained of positional vertigo 3 months after developing idiopathic sudden hearing loss in the right ear with vertigo.
He showed a persistent direction-changing geotropic nystagmus with a leftward beating nystagmus in the supine position.
The nystagmus resolved when his head was turned approximately 30° to the right.
He was diagnosed with light cupula of the right lateral semicircular canal and was subsequently treated with an antivertiginous agent.
However, his symptoms and positional nystagmus did not improve, so the right lateral semicircular canal was plugged by surgery.
One month after surgery, his positional vertigo and nystagmus were completely resolved.
We speculated that the cause of the patient’s intractable light cupula was an enlarged cupula caused by his idiopathic sudden hearing loss.
American Psychological Association (APA)
Seo, Toru& Saito, Kazuya& Doi, Katsumi. 2015. Intractable Persistent Direction-Changing Geotropic Nystagmus Improved by Lateral Semicircular Canal Plugging. Case Reports in Otolaryngology،Vol. 2015, no. 2015, pp.1-3.
https://search.emarefa.net/detail/BIM-1059594
Modern Language Association (MLA)
Seo, Toru…[et al.]. Intractable Persistent Direction-Changing Geotropic Nystagmus Improved by Lateral Semicircular Canal Plugging. Case Reports in Otolaryngology No. 2015 (2015), pp.1-3.
https://search.emarefa.net/detail/BIM-1059594
American Medical Association (AMA)
Seo, Toru& Saito, Kazuya& Doi, Katsumi. Intractable Persistent Direction-Changing Geotropic Nystagmus Improved by Lateral Semicircular Canal Plugging. Case Reports in Otolaryngology. 2015. Vol. 2015, no. 2015, pp.1-3.
https://search.emarefa.net/detail/BIM-1059594
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1059594