The Hong Kong Vascularized Temporalis Fascia Flap and its role in Cholesteatoma

Introduction: Semicircular canal dehiscence syndrome (SCDS) is caused by a bony defect of the superior semicircular canal, resulting in autophony, bone conduction of bodily sounds and pseudo conductive hearing loss. Vestibular manifestations include sound or pressure evoked vertigo. Occluding the dehiscent canal was originally described via the middle cranial fossa approach however, an alternative transmastoid approach has been used to avoid the morbidity associated with the former. The aimof this projectwas to determine clinical and audiological outcomes for those undergoing the transmastoid approach.