Superior petrosal sinus causing superior canal dehiscence syndrome

S. M.D. Schneiders*, J. W. Rainsbury, E. F. Hensen, R. M. Irving

*Corresponding author for this work

Research output: Contribution to journalReview articleAcademicpeer-review


Objective: To determine signs and symptoms for superior canal dehiscence syndrome caused by the superior petrosal sinus. Methods: A review of the English-language literature on PubMed and Embase databases was conducted, in addition to a multi-centre case series report. Results: The most common symptoms of 17 patients with superior petrosal sinus related superior canal dehiscence syndrome were: Hearing loss (53 per cent), aural fullness (47 per cent), pulsatile tinnitus (41 per cent) and pressure-induced vertigo (41 per cent). The diagnosis was made by demonstration of the characteristic bony groove of the superior petrosal sinus and the 'cookie bite' out of the superior semicircular canal on computed tomography imaging. Conclusion: Pulsatile tinnitus, hearing loss, aural fullness and pressure-induced vertigo are the most common symptoms in superior petrosal sinus related superior canal dehiscence syndrome. Compared to superior canal dehiscence syndrome caused by the more common apical location of the dehiscence, pulsatile tinnitus and exercise-induced vertigo are more frequent, while sound-induced vertigo and autophony are less frequent. There is, however, considerable overlap between the two subtypes. The distinction cannot as yet be made on clinical signs and symptoms alone, and requires careful analysis of computed tomography imaging.

Original languageEnglish
Pages (from-to)593-597
Number of pages5
JournalJournal of Laryngology and Otology
Issue number7
Publication statusPublished - 1 Jul 2017

Cite this