Semicircular canal dehiscence syndrome (SCDS) is a rare medical condition that affects the inner ear. It occurs when there is a thinning or absence of bone in the semicircular canals, which are responsible for detecting rotational movements of the head. This condition can lead to a variety of symptoms, including hearing and balance problems.
Diagnosing SCDS requires a comprehensive evaluation by a healthcare professional, typically an otolaryngologist or an audiologist. They will consider your medical history, conduct a physical examination, and perform specific tests to determine if you have SCDS.
One of the key diagnostic tests for SCDS is a vestibular evoked myogenic potential (VEMP) test. This test measures the response of certain muscles in the neck and eyes to sound or vibration stimuli. It can help identify if the semicircular canals are functioning abnormally.
Another important test is a high-resolution computed tomography (CT) scan of the temporal bones. This imaging technique allows doctors to visualize the structure of the inner ear and identify any abnormalities, such as a dehiscence in the semicircular canals.
Additionally, an audiogram may be conducted to assess your hearing abilities. This test involves listening to different tones and indicating when you can hear them. It helps determine if there is any hearing loss associated with SCDS.
It is important to note that the symptoms of SCDS can vary from person to person. Some common symptoms include dizziness or vertigo triggered by loud sounds or changes in head position, hearing loss or sensitivity to certain sounds, a feeling of fullness or pressure in the ear, and difficulty with balance or coordination.
If you are experiencing any of these symptoms, it is crucial to seek medical attention. A healthcare professional will be able to evaluate your condition and determine if you have SCDS or another underlying issue. Early diagnosis and appropriate treatment can help manage the symptoms and improve your quality of life.