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Updated: Jan 15, 2026
06:59
Intrathecal Application of a Fluorescent Dye for the Identification of Cerebrospinal Fluid Leaks in Cochlear Malformation
Published on: February 29, 2020
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Risk Factors and Preceding Events Predisposing the Development of Superior Canal Dehiscence Syndrome
Oren Wei1, Pavan S Krishnan1,2, Eric J Formeister1,3
1Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD.
Summary
Certain occupational and avocational factors, like loud noise exposure and physical exercise, may predispose individuals to superior canal dehiscence syndrome (SCDS). Traumatic events can also precipitate SCDS symptoms, including vertigo and tinnitus.
Area of Science:
- Otolaryngology
- Neurosurgery
- Audiology
Background:
- Superior canal dehiscence syndrome (SCDS) is a condition characterized by a thinning or opening in the bone overlying the superior semicircular canal.
- The exact risk factors and preceding events leading to SCDS development are not fully understood.
Purpose of the Study:
- To identify occupational and avocational risk factors associated with SCDS.
- To determine the types of inciting events that may precipitate the onset of SCDS symptoms.
Main Methods:
- Retrospective cohort study of adult patients with SCDS who underwent surgical repair.
- Data collected from medical records included occupational/recreational histories, inciting events, and presenting symptoms.
- 405 patients undergoing 454 surgeries were reviewed.
Main Results:
- Occupational exposures to loud noise (22%) and pressure changes (23%) were reported. Hobbies included physical exercise (66%) and music (27%).
- Preceding events included internal causes (33%), external trauma (32%), external non-traumatic causes (27%), spontaneous occurrence (5%), and post-surgical events (3%).
- Common symptoms were autophony (78%), sound-induced vertigo (73%), somatosounds (70%), pressure-induced vertigo (68%), and pulsatile tinnitus (66%).
Conclusions:
- Certain occupational and avocational activities may increase the predisposition to developing SCDS.
- Traumatic events, both internal and external, can precipitate the onset of SCDS symptoms.
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