Hostname: page-component-7bb8b95d7b-wpx69 Total loading time: 0 Render date: 2024-09-19T04:07:12.853Z Has data issue: false hasContentIssue false
  • English
  • Français

Asymptomatic superior semicircular canal dehiscence

Published online by Cambridge University Press:  27 October 2021

L Verrecchia ,
K Edholm  and
M Pekkari
L Verrecchia*
Affiliation:
ENT Unit, Department of Clinical Science, Intervention and Technology – CLINTEC, Karolinska Institutet, Solna ENT Department, Audiology and Neurotology Section, Karolinska University Hospital, Huddinge, Sweden
K Edholm
Affiliation:
Department of Neuroradiology, Karolinska University Hospital, Huddinge, Sweden
M Pekkari
Affiliation:
ENT Unit, Department of Clinical Science, Intervention and Technology – CLINTEC, Karolinska Institutet, Solna ENT Department, Audiology and Neurotology Section, Karolinska University Hospital, Huddinge, Sweden
*
Author for correspondence: Dr Luca Verrecchia, ENT Unit, Department of Clinical Science, Intervention and Technology – CLINTEC, Karolinska Institutet, Karolinska University Hospital, B61, 14186Huddinge, Sweden E-mail: luca.verrecchia@ki.se Fax: +46 85 858 7353
Get access Rights & Permissions [Opens in a new window]

Abstract

Objective

To describe a case of asymptomatic superior semicircular canal dehiscence.

Method

Clinical case report.

Results

A 50-year-old man presenting with right-sided Ménière´s disease also showed an enhanced response on vestibular evoked myogenic potential testing for the left ear. Unilateral left-sided superior semicircular canal bone dehiscence was clearly visualised on a subsequent temporal bone computed tomography scan. These findings were consistent with superior canal dehiscence syndrome. However, the patient did not complain of any specific superior canal dehiscence syndrome symptoms. Given that vestibular evoked myogenic potential testing may detect asymptomatic forms of superior canal dehiscence, as noted in this case, such testing seems to exhibit reduced specificity for superior canal dehiscence syndrome.

Conclusion

An enhanced response on vestibular evoked myogenic potential testing in isolation appears to be a weaker indicator of superior canal dehiscence syndrome, and rather a marker of superior semicircular canal dehiscence.

Keywords

Vestibular Evoked Myogenic PotentialsCervical Vestibular Evoked Myogenic PotentialsOcular Vestibular Evoked Myogenic PotentialsSuperior Semicircular Canal DehiscenceSemicircular Canal Dehiscence Syndrome
Type
Clinical Records
Information
The Journal of Laryngology & Otology , Volume 136 , Issue 1 , January 2022 , pp. 87 - 90
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Dr L Verrecchia takes responsibility for the integrity of the content of the paper

References

Ward, BK, Carey, JP, Minor, LB. Superior canal dehiscence syndrome: lessons from the first 20 years. Front Neurol 2017;8:177CrossRefGoogle ScholarPubMed
Brantberg, K, Verrecchia, L. Effectiveness of different click stimuli in diagnosing superior canal dehiscence using cervical vestibular evoked myogenic potentials. Acta Otolaryngol 2012;132:1077–83CrossRefGoogle ScholarPubMed
Lopez-Escamez, JA, Carey, J, Chung, WH, Goebel, JA, Magnusson, M, Mandalà, M et al. Diagnostic criteria for Menière's disease. J Vestib Res 2015;25:1–7CrossRefGoogle ScholarPubMed
Noij, KS, Wong, K, Duarte, MJ, Masud, S, Dewyer, NA, Herrmann, BS et al. Audiometric and cVEMP thresholds show little correlation with symptoms in superior semicircular canal dehiscence syndrome. Otol Neurotol 2018;39:1153–62CrossRefGoogle ScholarPubMed
Mittmann, P, Ernst, A, Seidl, R, Skulj, AF, Mutze, S, Windgassen, M et al. Superior canal dehiscence: a comparative postmortem multislice computed tomography study. OTO Open 2018;2:2473974X18793576CrossRefGoogle ScholarPubMed