In this condition the roof of the superior canal, one of the inner ear balance organs, is missing. Sound can then leak out of the closed inner ear system and activates the balance organs.
Symptoms of superior canal dehiscence include sound or cough induced dizziness, hearing sound from one’s body (heartbeat, eye moving, jaw clicking), imbalance and ear fullness.
The diagnosis can only be made by experts in the field including the specialists at Neurology Network Melbourne using vestibular evoked myogenic potentials, hearing tests and CT of the inner ear.
If the symptoms are very debilitating surgery is a treatment option.
Patient information on dizziness and balance disorders: Prof Tim Hain: Dizziness, Balance and Hearing Disorders