Shaun Davey1, Christian Kelly-Morland1, John S Phillips1, Ian Nunney2, Davina Pawaroo1. 1. Departments of Otolaryngology and Radiology, Norfolk and Norwich University Hospitals NHS Foundation Trust (S.D., C.K-M., J.S.P., D.P.). 2. Norwich Clinical Trials Unit, Norwich Medical School, University of East Anglia, Norwich, United Kingdom.
Abstract
OBJECTIVE: To determine whether superior semicircular canal dehiscence (SSCD) is more prevalent with advancing age. STUDY DESIGN: Retrospective observational study. METHODS: High-resolution computed-tomographic temporal bone scans were identified for patients of all ages and analyzed by two independent assessors. Multiplanar reconstruction was applied, and the thinnest area of temporal bone overlying each superior semicircular canal (SSC) was measured. RESULTS: A sample of 121 patients was analyzed that contained an almost identical number of male and female patients. In total, 242 temporal bone images were reviewed. Patients' ages ranged between 6 and 86 years. Age was shown to have a significant linear relationship (P < 0.001) such that for every unit increase in age the predicted thickness was reduced by 0.0047 mm. CONCLUSIONS: The thickness of the SSC decreases with advancing age. LEVEL OF EVIDENCE: 4.
OBJECTIVE: To determine whether superior semicircular canal dehiscence (SSCD) is more prevalent with advancing age. STUDY DESIGN: Retrospective observational study. METHODS: High-resolution computed-tomographic temporal bone scans were identified for patients of all ages and analyzed by two independent assessors. Multiplanar reconstruction was applied, and the thinnest area of temporal bone overlying each superior semicircular canal (SSC) was measured. RESULTS: A sample of 121 patients was analyzed that contained an almost identical number of male and female patients. In total, 242 temporal bone images were reviewed. Patients' ages ranged between 6 and 86 years. Age was shown to have a significant linear relationship (P < 0.001) such that for every unit increase in age the predicted thickness was reduced by 0.0047 mm. CONCLUSIONS: The thickness of the SSC decreases with advancing age. LEVEL OF EVIDENCE: 4.
Authors: Terry D Fife; James G Colebatch; Kevin A Kerber; Krister Brantberg; Michael Strupp; Hyung Lee; Mark F Walker; Eric Ashman; Jeffrey Fletcher; Brian Callaghan; David S Gloss Journal: Neurology Date: 2017-11-01 Impact factor: 9.910