Superior petrosal sinus stenting for symptomatic superior semicircular canal dehiscence

Superior semicircular canal dehiscence (SSCD) syndrome refers to vestibulo-auditory dysfunction caused by a bony defect ('third window') in the otic capsule. There is an emerging subtype of SSCD with the dehiscence located medially, causing the superior semicircular canal to come into contact with the superior petrosal sinus (SPS). We report two patients with SPS-related SSCD who, after multidisciplinary review, were offered stenting of the SPS. Both patients were followed up at 60 days post-procedure, with complete resolution of their symptoms. There were no complications immediately post-procedure or at the time of their post-procedure follow-up. We report a minimally invasive alternative to surgical treatment for SPS-related SSCD, which can eliminate pulsatile tinnitus and vestibular symptoms by addressing the venous pulsatile forces while avoiding direct inner ear manipulation.