PubMed · 840662
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G Freeman. 1977-01-13. Middle ear disease.. https://pubmed.ncbi.nlm.nih.gov/840662/
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Dehiscence of the semicircular canal is an uncommon condition and has been reported to involve the roof of the superior semicircular canal. We describe a case with dehiscence of four semicircular canals and in areas not involving the roof of the superior semicircular canal. Features that assist the diagnosis of this condition are reviewed, along with the current literature.
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When confronted with vertigo after an otologic procedure, a surgeon first must identify the functional status of the inner ear by performing auditory and vestibular testing. Using this information in conjunction with knowledge of the primary disease process for which the initial procedure was performed, the surgeon can make a rational selection of the procedure required to eliminate vertigo. This article outlines a systematic approach to the selection of the appropriate revision procedure and discusses the specific advantages and disadvantages of these procedures used to control vertigo.