Superior Canal Dehiscence

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Identifier SCDS
Title Superior Canal Dehiscence
Subject Nystagmus; Superior canal dehiscence; Valsalva
Creator Daniel R. Gold, DO, Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery and and John Carey, MD, Professor, Johns Hopkins Otolaryngology-Head and Neck Surgery, The Johns Hopkins School of Medicine
Description This is a 60-yo-man who complained of autophony (eg, hearing his own heartbeat, noting that his own voice sounded too loud) and dizziness triggered with loud noises and straining at times. With pinched-nose Valsalva maneuver, there was downbeat-torsional (towards the right ear) nystagmus, suggestive of excitation of the right anterior canal (slow phase down and torsion towards left ear, with position reset/fast phase in the opposite directions). There was more downbeat nystagmus in right gaze, and more torsional (towards right ear) nystagmus in left gaze. Superior canal dehiscence (SCD) was demonstrated on the right side on CT temporal bones and SCD syndrome was diagnosed. Valsalva and pinched-nose/nasal Valsalva maneuvers should be performed when there is a suspicion for SCDS (noise/pressure triggers, autophony + vertigo attacks, etc).
Contributor Daniel R. Gold, D.O.
Publisher Spencer S. Eccles Health Sciences Library, University of Utah
Date 2017
Type Image/MovingImage
Format video/mp4
Rights Management Copyright 2017. For further information regarding the rights to this collection, please visit:
Collection Neuro-ophthalmology Virtual Education Library: NOVEL
Language eng
ARK ark:/87278/s6md2nwh
Setname ehsl_novel_gold
Date Created 2017-04-04
Date Modified 2018-12-04
ID 1213443
Reference URL
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