[Superior semicircular canal dehiscence syndrome treated by calcium phosphate cement canal plugging: a case report].

Abstract

Superior semicircular canal dehiscence (SCD) syndrome exhibits pressure- and/or sound-induced oscillopsia and vertigo due to an absence of bone overlaying the superior semicircular canal. A 33-year-old man with right-ear SCD reported dizziness in a noisy hall three years earlier followed by dizziness during flatulence, straining or coughing, and right-ear autophony. Audiography showed a right-ear low-frequency air-bone gap, with positive Tullio phenomenon and a Valsalva maneuver against closed glottis causing torsional-vertical nystagmus. Temporal-bone computed tomography (CT) led to a diagnosis of right-ear SCD syndrome. Surgical dehiscence plugging with calcium phosphate cement via the middle fossa resolved vestibular and cochlear symptoms in the more than two years since.

• Authors: Hisamitsu Hayashi, Mitsuhiro Aoki, Nansei Yamada, Bunya Kuze, Keisuke Mizuta, Yatsuji Ito
• Journal: Nihon Jibiinkoka Gakkai kaiho (Nihon Jibiinkoka Gakkai Kaiho) Vol. 114 Issue 6 Pg. 568-72 (Jun 2011) ISSN: 0030-6622 [Print] Japan
• PMID: 21770307 (Publication Type: Case Reports, English Abstract, Journal Article)

Chemical References

• Calcium Phosphates
• calcium phosphate

Topics

• Adult
• Calcium Phosphates (therapeutic use)
• Humans
• Labyrinth Diseases (diagnosis, surgery)
• Male
• Semicircular Canals