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Superior canal dehiscence syndrome - Wikipedia
https://en.wikipedia.org/wiki/superior_canal_dehiscence#:~:text=Superior%20canal%20dehiscence%20syndrome%20%28SCDS%29%20is%20a%20set,the%20superior%20semicircular%20canal%20of%20the%20vestibular%20system.
Superior canal dehiscence effect on hearing thresholds ...
https://pubmed.ncbi.nlm.nih.gov/21602535/
Objective: Superior semicircular dehiscence syndrome is associated with vestibular symptoms and an air-bone gap component in the audiogram, apparently caused by the creation of a pathological bony "third window" in the superior semicircular canal. The aim of this study was to evaluate changes in auditory air- and bone-conduction thresholds to low- and high-frequency …
Superior Semicircular Canal Dehiscence Mimicking ...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2636720/
Superior semicircular canal dehiscence (SSCD) syndrome is a recently described clinical entity associated with vestibular symptoms typically evoked by sound and pressure stimuli [1, 2]. As experience with this syndrome has accrued, it has become apparent that some patients with SSCD can present with apparent conductive hearing loss without vestibular symptoms [ 3 – 5 ].
Ask the Expert | Superior Canal Dehiscence Syndrome
https://www.hopkinsmedicine.org/otolaryngology/specialty_areas/otology/conditions/superior-canal-dehiscence-syndrome/scds_qa.html
The semi-circular canals are rotation sensors. The superior semicircular canal senses the rotation of the head downward and rolling toward the same side at the same time. For the left superior canal (SC) - imagine a bar going through your right eye socket and coming out behind your left ear, and imagine rolling your head downward around that bar.
Superior Canal Dehiscence Syndrome (SCDS ... - Hopkins ...
https://www.hopkinsmedicine.org/health/conditions-and-diseases/superior-canal-dehiscence-syndrome-scds
Superior Canal Dehiscence Syndrome (SCDS) Superior canal dehiscence syndrome (SCDS) is caused by an abnormal opening between the uppermost semicircular canal in the upper part of the inner ear and the brain. The condition causes problems with hearing and balance.
Spectrum of Third Window Abnormalities: Semicircular …
http://www.ajnr.org/content/38/1/2
A, Audiogram of the right superior semicircular canal dehiscence with increased bone conduction ( brackets) and decreased air conduction ( crosses ). The air-bone gap exceeds 10 dB at low sound frequencies (<1 kHz), the range at which acoustic energy is readily dissipated (described in the text).
Abnormal Audiograms in Ear Pathology - entpa.org
https://entpa.org/resources/Pictures/2016%20ENT%20for%20the%20PA-C/Presentations/Abnormal%20audiograms%20in%20ear%20pathology%20-%20Klingenberg.pdf
Question 7: Why is this audiogram consistent with possible superior canal dehiscence? A. Mixed hearing loss at 4000 Hz B. Enhanced thresholds for LF bone conduction C. High frequency conductive hearing loss D. Decreased bone conduction at 2000 Hz.
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