Posterior semicircular canal dehiscence: CT prevalence and clinical symptoms

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology
Jack E RussoJames E Saunders

Abstract

To estimate the prevalence of and symptoms associated with posterior semicircular canal dehiscence (PSCD) compared to superior semicircular canal dehiscence (SSCD) and nondehiscent semicircular canals (NDSC). Retrospective review. Academic tertiary referral center. Review of 412 temporal bone CT scans and associated patient records, excluding patients with prior mastoid or skull base surgery. CT images (0.625 mm thick) were reviewed in the planes of the semicircular canals. Patient demographics and symptoms were tabulated and analyzed. Prevalence of PSCD and SSCD; degree of hearing loss; presence or absence of aural fullness, autophony, tinnitus, pulsatile tinnitus, disequilibrium, vertigo, and Tullio phenomenon. Review of the 412 CT scans revealed 5 cases of PSCD (1.2%) and 20 cases of SSCD (4.9%). All patients with PSCD were male, aged 16 to 73 years. One patient with PSCD reported tinnitus, autophony, disequilibrium, vertigo, and Tullio phenomenon; 2 patients reported only tinnitus and aural fullness, and 1 patient had no symptoms. PSCD was commonly associated with SSCD. There were no significant differences in symptoms between PSCD patients and the other groups. There were, however, statistically significant differences bet...Continue Reading

References

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Citations

Jun 25, 2015·Acta Oto-laryngologica·Zachary W BearAnthony A Mikulec
Jan 14, 2017·Journal of Neurosurgery·Wenya Linda BiIan F Dunn
Jul 3, 2017·Audiology & Neuro-otology·Jaime WhyteMiguel A Crovetto
Aug 24, 2017·The Laryngoscope·Phoebe KuoJohn F Kveton
Oct 9, 2014·International Journal of Environmental Health Research·Robert V Harrison
Aug 15, 2014·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Christopher A SchuttJohn F Kveton
Sep 16, 2016·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Kathryn Y NoonanJames E Saunders
Jan 25, 2020·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Joshua A LeeHabib G Rizk
Jul 15, 2015·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Duncan A MeiklejohnNikolas H Blevins
Jul 15, 2015·Clinical Neuroradiology·A Giesemann, E Hofmann
Mar 17, 2020·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Joshua A LeeHabib G Rizk

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