Superior semicircular canal dehiscence repair with small middle fossa craniotomy using an oto-microscopic and co-endoscopic assisted approach.

Objective: Superior semicircular canal dehiscence is an uncommon neurotological disorder in which the petrous temporal bone overlying the superior semicircular canal lacks bone. Its most common symptoms include amplification of internal sounds, autophony, tinnitus, sound- and pressure-induced vertigo, hyperacusis, oscillopsia, and hearing loss. This video presentation aimed to demonstrate endoscopic-assisted repair of superior semicircular canal dehiscence with middle fossa craniotomy. Method: Eleven patients with superior semicircular canal dehiscence, verified with temporal computed tomography, were enrolled in the study. Result: An endoscopy-assisted middle fossa approach was applied to all patients. Superior semicircular canal dehiscence was successfully repaired with an endoscope in 11 patients. Conclusion: Endoscopic-assisted repair of superior semicircular canal dehiscence may be a superior approach compared with binocular operative microscopy. [ABSTRACT FROM AUTHOR]