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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Nadaraja, Garani Shiranthana Gurgel, Richard K. Fischbein, Nancy J. Anglemyer, Andrew Monfared, Ashkan Jackler, Robert K. Blevins, Nikolas H. |
| Description | Country affiliation: United States Author Affiliation: Nadaraja GS ( Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, California 94305-5739, USA.) |
| Abstract | OBJECTIVE: To determine a radiographic association between superior semicircular canal dehiscence (SSCD) and tegmen dehiscence (TD). STUDY DESIGN: Retrospective case-control series. SETTING: Tertiary referral center. PATIENTS: Patients seen between 2003 and 2010 with radiographic SSCD were compared with cochlear implant recipient controls. INTERVENTION: The tegmen and superior semicircular canal were evaluated on computed tomographic temporal bone scans. MAIN OUTCOME MEASURE: If detected, the widest point of the SSCD was measured. The tegmen was graded on a 5-point scale. After analysis, a radiographic TD was defined as any single area of absent tegmen greater than 5 mm, multiple areas of absent tegmen, or evidence of meningocele. Age, sex, and body mass index were also noted. RESULTS: Thirty-eight patients with SSCD and 41 cochlear implant controls were identified. Seventy-six percent (29/38) of patients with unilateral or bilateral SSCD had a radiographic TD on at least 1 side compared with 22% (9/41) of the comparison group. Ninety-four percent (7/18) of patients with bilateral SSCD had a TD on at least 1 side. Patients with SSCD had a 10.2 times (p < 0.001) higher odds of having radiographic TD in either ear compared to the controls. Among patients with any SSCD, for every millimeter increase in the width of dehiscence, the relative risk for any TD increased more than 2-fold (odds ratio, 2.5; p = 0.019). Age, sex, and a body mass index greater than 30 did not confound the association between SSCD and TD. CONCLUSION: There is a strong radiologic association between SSCD and TD, suggesting a similar etiologic process. The tegmen should be carefully evaluated in patients with SSCD. We have also proposed a new system for radiographically grading the integrity of the tegmen. |
| File Format | HTM / HTML |
| ISSN | 15317129 |
| Issue Number | 7 |
| Volume Number | 33 |
| e-ISSN | 15374505 |
| Journal | Otology & Neurotology |
| Language | English |
| Publisher | Lippincott Williams & Wilkins |
| Publisher Date | 2012-09-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Semicircular Canals Humans Middle Aged Discipline Otolaryngology Male Journal Article Temporal Bone Radiography Labyrinth Diseases Adult Female Aged Retrospective Studies |
| Content Type | Text |
| Resource Type | Article |
| Subject | Otorhinolaryngology Sensory Systems Neurology (clinical) |
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