Superior Semicircular Canal Dehiscence: Pathophysiology and Surgical Outcomes

Abstract

Purpose of Review

Knowledge regarding superior semicircular canal dehiscence (SSCD) is quickly evolving. There are multiple aspects of SSCD that need to be considered in the diagnosis and treatment of this entity. Knowing the outcomes from treatment, the neuro-otologist is better equipped in counseling the patient regarding prognosis and individualized best management options.

Recent Findings

Now going on nearly 20 years since its initial description in the literature, the treatment options for SSCD have expanded and the results of treatment are being reported. Unfortunately, with variations in techniques and small numbers reported, comparison of differing techniques is challenging. Since 1998, our group has performed more than 400 SSCD surgical procedures of varying types. Much of this review is colored by this experience. We will review the pathophysiology and surgical outcomes for SSCD in order to give the reader a better appreciation of prognosis for treatment.

Summary

SSCD can have multiple unique presentations, with varying degrees of symptoms. The treatment options can range from non-surgical to minimally invasive to a variety of more invasive procedures. Knowing the pathophysiology and the outcomes from intervention can aid the physician in directing the patients care most appropriately.

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