Near and frank dehiscence of the superior semicircular canal: a comparative analysis of clinical outcome

Compared to patients with NDs, those with FDs presented with a wider low-frequency ABG but similar symptom profile at baseline. Postsurgery, patients with FDs demonstrated numerically greater ABG narrowing but reported higher rates of dizziness, vertigo, and persistent hearing loss. Nevertheless, surgery yielded objective and subjective benefits among both patients with FDs and those with NDs.