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Superior buegang-dehiscens-syndrom

Forfatter(e)

Casper Grønlund1, Louise Devantier2, Mikael Karlberg3 & Bjarki Ditlev Djurhuus1

1) Øre-, Næse-, Hals- og Kæbekirurgisk Afdeling, Sjællands Universitetshospital, Køge, 2) Audiologisk Klinik, Øre-, Næse-, Halskirurgisk Afdeling, Aarhus Universitetshospital, 3) ØNH-klinikken, Skånes Universitetshospital, Lund

Ugeskr Læger 2021;183:V04200218

Reference: 
Ugeskr Læger 2021;183:V04200218
Blad nummer: 
Superior semicircular canal dehiscence syndrome

Casper Grønlund, Louise Devantier, Mikael Karlberg & Bjarki Ditlev Djurhuus

Ugeskr Læger 2020;182:V04200218

Superior semicircular canal dehiscence syndrome (SCDS) is caused by a bony defect of the superior semicircular canal. The bony defect allows low-frequency acoustic stimuli of high intensity to travel to the vestibular organ. This can be induced by sound stimuli or pressure stimuli leading to vertigo, torsional nystagmus, pulsatile tinnitus, hyperacusis, hearing loss and autophony. SCDS is diagnosed with provocative testing, audiometry, CT-scan, vestibular evoked myogenic potentials and electrocochleography. Treatment is conservative, however, surgery with occlusion of the defect can be necessary for debilitating symptoms, as argued in this review.

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