Superior canal dehiscence syndrome

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Superior Canal Dehiscence Syndrome (pronounced su·pe·ri·or ca·nal de·his·cence syn·drome) is a rare medical condition that affects the inner ear. It is often abbreviated as SCDS.

Etymology

The term "Superior Canal Dehiscence Syndrome" is derived from the Latin words 'superior' meaning 'higher', 'canalis' meaning 'channel', and 'dehiscence' meaning 'a surgical complication where an incision or wound reopens'. The syndrome was first described by Lloyd B. Minor in 1998.

Definition

Superior Canal Dehiscence Syndrome is a condition characterized by the absence of part of the bone that covers one of the balance canals in the inner ear, specifically the superior semicircular canal. This absence of bone can lead to a variety of symptoms, including vertigo, tinnitus, and hearing loss.

Symptoms

The most common symptoms of Superior Canal Dehiscence Syndrome include:

  • Vertigo: A sensation of spinning or feeling off-balance.
  • Tinnitus: Ringing or buzzing noise in one or both ears.
  • Hearing loss: Reduced ability to hear sounds.
  • Autophony: The unusual perception of one's own voice or bodily sounds, such as heartbeat or eye movements.

Diagnosis

Diagnosis of Superior Canal Dehiscence Syndrome is typically made through a combination of patient history, physical examination, and specialized tests such as CT scan of the temporal bones and vestibular evoked myogenic potentials (VEMP) testing.

Treatment

Treatment options for Superior Canal Dehiscence Syndrome can range from conservative management with lifestyle modifications and medications to surgical intervention. The most common surgical procedure is a middle cranial fossa approach to resurface the dehiscent superior semicircular canal.

See also

External links

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