Détail de la notice
Titre du Document
Sound- and/or pressure-induced vertigo due to bone dehiscence of the superior semicircular canal
Auteur(s)
MINOR L. B. ; SOLOMON D. ; ZINREICH J. S. ; ...
Résumé
Objectives: To present symptoms, patterns of nystagmus, and computed tomographic scan identification of patients with sound- and/or pressure-induced vertigo due to dehiscence of bone overlying the superior semicircular canal. To describe anatomical findings and outcome in 2 patients undergoing plugging of the superior semicircular canal for treatment of these symptoms. Design and Setting: Prospective study of a case series in a tertiary care referral center. Patients and Results: Eight patients with vertigo, oscillopsia, and/or disequilibrium related to sound, changes in middle ear pressure, and/or changes in intracranial pressure were identified in a 2-year period. Seven of these patients also had vertical-torsional eye movements induced by these sound and/or pressure stimuli. The direction of the evoked eye movements could be explained by excitation or inhibition of the superior semicircular canal in the affected ear. Computed tomographic scans of the temporal bones identified dehiscence of bone overlying the affected superior semicircular canal in each case. Disabling disequilibrium in 2 patients prompted plugging of the dehiscent superior canal through a middle cranial fossa approach. Symptoms were improved in each case. One patient developed recurrent symptoms requiring an additional plugging procedure and developed sensorineural hearing loss several days after this second procedure. Conclusions: We have identified patients with a syndrome of vestibular symptoms induced
Editeur
American Medical Association
Identifiant
PMID : 9525507 ISSN : 0886-4470 CODEN : AONSEJ
Source
Archives of otolaryngology, head & neck surgery A. 1998, vol. 124, n° 3, pp. 249-258 [bibl. : 32 ref.]
Langue
Anglais
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