Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Pressure-induced ocular torsion

V B Ostrowski1, T C Hain, R J Wiet

  • 1Department of Otolaryngology, Northwestern University Medical School, Chicago, Ill, USA.

Archives of Otolaryngology--Head & Neck Surgery
|June 1, 1997
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Mal de débarquement syndrome.

Handbook of clinical neurology·2016
Same author

Practice parameter: therapies for benign paroxysmal positional vertigo (an evidence-based review): report of the Quality Standards Subcommittee of the American Academy of Neurology.

Neurology·2008
Same author

Perturbation parameters associated with nonlinear responses of the head at small amplitudes.

Chaos (Woodbury, N.Y.)·2005
Same author

[The pharmacology of vestibular disorders].

Revista de neurologia·2004
Same author

[Neck vibration: usefulness in neurotology].

Revista de neurologia·2004
Same author

Effects of predictive mechanisms on head stability during forward trunk perturbation.

Experimental brain research·2003
Same journal

Pathology quiz case 2.

Archives of otolaryngology--head & neck surgery·2014
Same journal

Pathology quiz case 1.

Archives of otolaryngology--head & neck surgery·2014
Same journal

Radiology quiz case 1: diagnosis.

Archives of otolaryngology--head & neck surgery·2013
Same journal

Pair of red and green macaws.

Archives of otolaryngology--head & neck surgery·2013
Same journal

Pathology quiz case 2: diagnosis.

Archives of otolaryngology--head & neck surgery·2013
Same journal

About this journal.

Archives of otolaryngology--head & neck surgery·2013
See all related articles

Positive air pressure can induce ocular torsion, causing eye rotation away from the stimulated ear. Surgical repair of perilymphatic fistulas did not resolve symptoms in these cases.

Area of Science:

  • Otolaryngology
  • Neuroscience
  • Ophthalmology

Background:

  • Ocular torsion can be a symptom of inner ear dysfunction.
  • The link between external ear pressure and ocular torsion suggests a connection to the vestibular system.

Observation:

  • Three patients presented with ocular torsion induced by positive external ear canal pressure.
  • The superior pole of the eye rotated away from the stimulated ear.
  • Torsion amplitude varied from 3 to 16 degrees.

Findings:

  • Exploratory tympanotomy revealed round-window fistulas in two patients, which were repaired.
  • The third patient's oval and round windows were patched without finding a fistula.
  • No patient experienced symptom resolution after surgical intervention.

Related Experiment Videos

Implications:

  • Pressure-induced ocular torsion may not resolve even after surgical repair of perilymphatic fistulas.
  • The condition might stem from an irreversible utricle and stapes footplate juxtaposition.
  • Further research is needed to understand and treat this phenomenon.