Reversible peripheral XXXX : the treatment of superior canal dehiscence.

@entity1 @entity345 @entity6783 @entity392 @entity393 @entity346 @entity10287
OBJECTIVE: @entity6783 ( @entity6783 ) is a recently described disorder that results from absence of bone over the superior semicircular canal. We have reviewed 30 cases of @entity6783 found at our institution and report their presentation, workup, and response to therapy. STUDY DESIGN: Retrospective chart review of all @entity1 diagnosed with @entity6783 from 1999 to 2004 at the University of Utah. RESULTS: Thirty @entity1 were identified with @entity6783 . @entity1 presented with chronic disequilibrium (63%), Tullio's phenomenon (41%), pressure evoked vertigo (44%), @entity393 (30%), and @entity392 (7%). ENG performed early in our series revealed @entity346 with sound presentation, Valsalva, or tympanogram; however, history and CT examination alone was used to identify this condition in most of our @entity1 . Twenty-seven of the 30 @entity1 had some symptoms related to @entity6783 ; the other 3 were found to have incidental @entity6783 on CT examination. Of these @entity1 , 14 had severe enough symptoms to warrant operative intervention. All, but one had resolution of their symptoms after completion of intervention. CONCLUSIONS: @entity6783 is a highly treatable form of @entity345 once recognized. When @entity1 present with typical symptoms, workup with CT is reliable and accurate. Surgical intervention results in reversal of symptoms in most cases with low morbidity. EBM RATING: @entity10287 .
