superior semicircular canal dehiscence / superior canal dehiscence syndrome - known as Minor syndrome, superior canal dehiscence is a middle fossa skull base defect involving one of the vestibular (balance) organs. Specifically, a tiny hole in the superior (also known as anterior semicircular canal) in one or both ears can cause hearing loss AND/OR imbalance / dizziness, fullness of the involved ear and autophony (echo during self-vocalization). Superior semicircular canal dehiscence (SSCD) or superior canal dehiscence syndrome (SCDS) can result in many symptoms that resemble more common disorders of hearing loss and imbalance like otosclerosis, Eustachian tube dysfunction, patulous Eustachian tube, Menieres disease or BPPV.
This is a very important and much underestimated aspect in the management of Menieres disease. This can help minimize stressors which act as a trigger to acute attacks, and can also help in the management of underlying tinnitus, dizziness and imbalance. A syndrome labeled psychophysiologic dizziness plays a large role in many patients with Meniere’s Disease. This essentially where an insult to the vestibular system leaves a degree of nerve damage. The brain needs to compensate for this loss and anxiety, especially anxiety centred on the fear of further attacks or dizziness can further amplify the symptoms of instability.