Document Detail

Rotatory nystagmus synchronous with heartbeat: a treatable form of nystagmus.
MedLine Citation:
PMID:  14971569     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To describe a treatable form of nystagmus. METHODS: Two patients recently evaluated at the Mayo Clinic had experienced various forms of oscillopsia, imbalance, and worsening symptoms with a Valsalva maneuver. Close inspection of the eye revealed a subtle rotatory nystagmus that was synchronous with the heartbeat. RESULTS: The two patients had surgical treatment for dehiscence of the superior semicircular canal; postoperatively, their symptoms completely resolved. This is a relatively newly discovered condition that has not been described on either slit-lamp or ophthalmoscopic examination. The cause is related to a dehiscence of the superior semicircular canal that permits communication of variable pressures between the intracranial cavity and the perilymphatic spaces of the semicircular canal. CONCLUSION: Being aware of this unusual form of nystagmus may permit physicians to diagnose it--one of the few treatable forms of nystagmus.
Brian R Younge; Nissim Khabie; Robert H Brey; Colin L W Driscoll
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Transactions of the American Ophthalmological Society     Volume:  101     ISSN:  0065-9533     ISO Abbreviation:  Trans Am Ophthalmol Soc     Publication Date:  2003  
Date Detail:
Created Date:  2004-02-19     Completed Date:  2004-03-09     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7506106     Medline TA:  Trans Am Ophthalmol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  113-7; discussion 117-8     Citation Subset:  IM    
Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota, USA.
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MeSH Terms
Labyrinth Diseases / complications,  radiography
Middle Aged
Myocardial Contraction*
Nystagmus, Pathologic / etiology,  physiopathology*,  surgery*
Semicircular Canals / radiography,  surgery
Tomography, X-Ray Computed

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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