Bilateral Superior Semi-Circular Canal Dehiscence Presenting as Conductive Hearing Loss with Vestibular Symptoms: A Client Centre Case Report
Abstract
Background: Superior semicircular canal dehiscence (SSCD) is a rare bone defect in the petrous part of the temporal bone. In this syndrome, a third window is created between the middle cranial fossa and the bony labyrinth of the inner ear which can lead to stimulation of the vestibular system by sound. Patients usually have symptoms such as vertigo, imbalance, autophony, pulsatile tinnitus, and aural fullness. The clinical symptoms of this disease vary from person to person.
The Case: This study reports a case of a rare bilateral SSCD in a 39-year-old woman with imbalance and autophony problems. The audiological findings showed a bilateral mild conductive hearing loss at low frequencies with symptoms of vertigo and torsional nystagmus. The SSCD was diagnosed by computed tomography. Then, the patient underwent bone repair surgery. Auditory and balance tests were performed again after the surgery to evaluate the extent of recovery.
Conclusion: The SSCD can be diagnosed by using the mentioned test battery. By choosing the appropriate treatment methods s, most of the problems of patients with SSCD can be solved.
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[11] Bi WL, Brewster R, Poe D, Vernick D, Lee DJ, Eduar- do Corrales C, Dunn IF. Superior semicircular canal de- hiscence syndrome. J Neurosurg. 2017;127(6):1268-76. [DOI:10.3171/2016.9.JNS16503]
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[15] Yew A, Zarinkhou G, Spasic M, Trang A, Gopen Q, Yang I. Characteristics and management of superior semicircular ca- nal dehiscence. J Neurol Surg B Skull Base. 2012;73(6):365-70. [DOI:10.1055/s-0032-1324397]
[16] Lee YH, Rivas-Rodriguez F, Song JJ, Yang KS, Mukherji SK. The prevalence of superior semicircular canal dehiscence in conductive and mixed hearing loss in the absence of other pathology using submillimetric temporal bone computed tomography. J Comput Assist Tomogr. 2014;38(2):190-5 [DOI:10.1097/RCT.0b013e3182ab2afb]
[17] Sugihara EM, Babu SC, Kitsko DJ, Haupert MS, Thot- tam PJ. Incidence of Pediatric Superior Semicircular Canal Dehiscence and Inner Ear Anomalies: A Large Multicenter Review. Otol Neurotol. 2016;37(9):1370-5. [DOI:10.1097/ MAO.0000000000001194]
[18] McCaslin DL, Jacobson GP. Vestibular-Evoked Myogenic Potentials (VEMPs). In: Jacobson GP, Shepard NT, Barin K, Janky K, McCaslin DL, editors. Balance Function Assessment and Management. 3rd ed. San Diego, CA: Plural Publishing; 2020. p. 399-438.
[2] Thomson S, Madani G. The windows of the inner ear. Clin Radiol. 2014;69(3):e146-52. [DOI:10.1016/j.crad.2013.10.020]
[3] Carey JP, Minor LB, Nager GT. Dehiscence or thinning of bone overlying the superior semicircular canal in a tem- poral bone survey. Arch Otolaryngol Head Neck Surg. 2000;126(2):137-47. [DOI:10.1001/archotol.126.2.137]
[4] Zhou G, Gopen Q, Poe DS. Clinical and Diagnostic Charac- terization of Canal Dehiscence Syndrome: A Great Otologic Mimicker. Otol Neurotol. 2007;28(7):920-6. [DOI:10.1097/ MAO.0b013e31814b25f2]
[5] G, et al. Clinical Characteristics of Posterior and Lateral Semicircular Canal Dehiscence. J Neurol Surg B Skull Base. 2015;76(6):421-5. [DOI:10.1055/s-0035-1551667]
[6] Stimmer H, Hamann KF, Zeiter S, Naumann A, Rum- meny EJ. Semicircular canal dehiscence in HR multislice computed tomography: distribution, frequency, and clinical relevance. Eur Arch Otorhinolaryngol. 2012;269(2):475-80. [DOI:10.1007/s00405-011-1688-6]
[7] Ceylan N, Bayraktaroglu S, Alper H, Savaş R, Bilgen C, Kira- zli T, et al. CT imaging of superior semicircular canal dehis- cence: added value of reformatted images. Acta Otolaryngol. 2010;130(9):996-1001. [DOI:10.3109/00016481003602108]
[8] Curtin HD. Superior semicircular canal dehiscence syn- drome and multi-detector row CT. Radiology. 2003;226(2):312- 4. [DOI:10.1148/radiol.2262021327]
[9] Milojcic R, Guinan JJ Jr, Rauch SD, Herrmann BS. Vestibular evoked myogenic potentials in patients with superior semi- circular canal dehiscence. Otol Neurotol. 2013;34(2):360-7. [DOI:10.1097/MAO.0b013e31827b4fb5]
[10] Minor LB, Solomon D, Zinreich JS, Zee DS. Sound- and/ or pressure-induced vertigo due to bone dehiscence of the su- perior semicircular canal. Arch Otolaryngol Head Neck Surg. 1998;124(3):249-58. [DOI:10.1001/archotol.124.3.249]
[11] Bi WL, Brewster R, Poe D, Vernick D, Lee DJ, Eduar- do Corrales C, Dunn IF. Superior semicircular canal de- hiscence syndrome. J Neurosurg. 2017;127(6):1268-76. [DOI:10.3171/2016.9.JNS16503]
[12] Minor LB. Clinical manifestations of superior semicircu- lar canal dehiscence. Laryngoscope. 2005;115(10):1717-27. [DOI:10.1097/01.mlg.0000178324.55729.b7]
[13] Kaski D, Davies R, Luxon L, Bronstein AM, Rudge P. The Tullio phenomenon: a neurologically neglected presentation. J Neurol. 2012;259(1):4-21. [DOI:10.1007/s00415-011-6130-x]
[14] Shuman AG, Rizvi SS, Pirouet CW, Heidenreich KD. Hen- nebert’s sign in superior semicircular canal dehiscence syn- drome: a video case report. Laryngoscope. 2012;122(2):412-4. [DOI:10.1002/lary.22413]
[15] Yew A, Zarinkhou G, Spasic M, Trang A, Gopen Q, Yang I. Characteristics and management of superior semicircular ca- nal dehiscence. J Neurol Surg B Skull Base. 2012;73(6):365-70. [DOI:10.1055/s-0032-1324397]
[16] Lee YH, Rivas-Rodriguez F, Song JJ, Yang KS, Mukherji SK. The prevalence of superior semicircular canal dehiscence in conductive and mixed hearing loss in the absence of other pathology using submillimetric temporal bone computed tomography. J Comput Assist Tomogr. 2014;38(2):190-5 [DOI:10.1097/RCT.0b013e3182ab2afb]
[17] Sugihara EM, Babu SC, Kitsko DJ, Haupert MS, Thot- tam PJ. Incidence of Pediatric Superior Semicircular Canal Dehiscence and Inner Ear Anomalies: A Large Multicenter Review. Otol Neurotol. 2016;37(9):1370-5. [DOI:10.1097/ MAO.0000000000001194]
[18] McCaslin DL, Jacobson GP. Vestibular-Evoked Myogenic Potentials (VEMPs). In: Jacobson GP, Shepard NT, Barin K, Janky K, McCaslin DL, editors. Balance Function Assessment and Management. 3rd ed. San Diego, CA: Plural Publishing; 2020. p. 399-438.
| Files | ||
| Issue | Vol 32 No 2 (2023) | |
| Section | Case Report(s) | |
| DOI | https://doi.org/10.18502/avr.v32i2.12186 | |
| Keywords | ||
| Superior semicircular canal dehiscence bilateral conductive hearing loss | ||
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How to Cite
1.
Rezvani Amin M, Behzad H, Kafashan S, Kamrani A. Bilateral Superior Semi-Circular Canal Dehiscence Presenting as Conductive Hearing Loss with Vestibular Symptoms: A Client Centre Case Report. Aud Vestib Res. 2023;32(2):159-165.
