Semicircular Canal Dehiscence also referred to as Superior Semicircular Canal Dehiscence Syndrome is an “opening” in the bone which surrounds one of the semicircular canals of the inner ear, usually occurring in the superior semicircular canal of the ear-hence the name. This medical condition can result in symptoms that can affect a person’s balance and hearing.
What causes superior canal dehiscence (SCD)?
Although the actual cause of canal dehiscence syndrome is still not yet known, it has been found in many cases to be a result of a genetic predisposition causing an “abnormal” development of the inner ear. This can also be caused from certain infections as well as head trauma. Some believe that people with this genetic predisposition are susceptible to trauma or infections which then in turn may cause canal dehiscence syndrome..
What are the symptoms of superior canal dehiscence (SCD)?
Symptoms of superior canal dehiscence can include:
- Vertigo (dizziness)
- Oscillopsia (appearance of movement of stationary objects)
- Autophony (hearing one’s voice or self-generated sounds like breathing and blinking louder than normal)
- Sensitivity to loud sounds
- Fullness/pressure in the ears
PLEASE NOTE: Not all people will experience all of the same symptoms, which can make it difficult to diagnose; treatment options may vary.
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