Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-24T00:12:55.826Z Has data issue: false hasContentIssue false
  • English
  • Français

Cochlear nerve canal stenosis and associated semicircular canal abnormalities in paediatric sensorineural hearing loss: a single centre study

Published online by Cambridge University Press:  27 July 2020

Z Zainol Abidin ,
F Mohd Zaki ,
T Y Kew ,
B S Goh  and
A Abdullah
Z Zainol Abidin
Affiliation:
Department of Radiology, Universiti Kebangsaan Malaysia Medical Center, Kuala Lumpur, Malaysia
F Mohd Zaki*
Affiliation:
Department of Radiology, Universiti Kebangsaan Malaysia Medical Center, Kuala Lumpur, Malaysia
T Y Kew
Affiliation:
Department of Radiology, Universiti Kebangsaan Malaysia Medical Center, Kuala Lumpur, Malaysia
B S Goh
Affiliation:
Department of Otorhinolaryngology, Universiti Kebangsaan Malaysia Medical Center, Kuala Lumpur, Malaysia
A Abdullah
Affiliation:
Department of Otorhinolaryngology, Universiti Kebangsaan Malaysia Medical Center, Kuala Lumpur, Malaysia
*
Author for correspondence: Dr Faizah Mohd Zaki, Department of Radiology, Universiti Kebangsaan Malaysia Medical Centre, 56000 Cheras, Kuala Lumpur, Malaysia E-mail: zakhirati@gmail.com Fax: +60 391 456 640
Get access Rights & Permissions [Opens in a new window]

Abstract

Objective

This study aimed to evaluate the association between cochlear nerve canal dimensions and semicircular canal abnormalities and to determine the distribution of bony labyrinth anomalies in patients with cochlear nerve canal stenosis.

Method

This was a retrospective study in which high-resolution computed tomography images of paediatric patients with severe-to-profound sensorineural hearing loss were reviewed. A cochlear nerve canal diameter of 1.5 mm or less in the axial plane was classified as stenotic. Semicircular canals and other bony labyrinth morphology and abnormality were evaluated.

Results

Cochlear nerve canal stenosis was detected in 65 out of 265 ears (24 per cent). Of the 65 ears, 17 ears had abnormal semicircular canals (26 per cent). Significant correlation was demonstrated between cochlear nerve canal stenosis and semicircular canal abnormalities (p < 0.01). Incomplete partition type II was the most common accompanying abnormality of cochlear nerve canal stenosis (15 out of 65, 23 per cent).

Conclusion

Cochlear nerve canal stenosis is statistically associated with semicircular canal abnormalities. Whenever a cochlear nerve canal stenosis is present in a patient with sensorineural hearing loss, the semicircular canal should be scrutinised for presence of abnormalities.

Keywords

TomographyTemporal BoneHearing Loss, SensorineuralCochleaStenosisSemicircular Canals
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 134 , Issue 7 , July 2020 , pp. 603 - 609
Copyright
Copyright © The Author(s), 2020. 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 Z Zainol Abidin takes responsibility for the integrity of the content of the paper

References

Sennaroglu, L, Saatci, I. A new classification for cochleovestibular malformations. Laryngoscope 2002;112:2230–41CrossRefGoogle ScholarPubMed
Young, JY, Ryan, ME, Young, NM. Preoperative imaging of sensorineural hearing loss in pediatric candidates for cochlear implantation. Radiographics 2014;34:E133–49CrossRefGoogle ScholarPubMed
Wilkins, A, Prabhu, SP, Huang, L, Ogando, PB, Kenna, MA. Frequent association of cochlear nerve canal stenosis with pediatric sensorineural hearing loss. Arch Otolaryngol Head Neck Surg 2012;138:383–8CrossRefGoogle ScholarPubMed
Adunka, OF, Jewells, V, Buchman, CA. Value of computed tomography in the evaluation of children with cochlear nerve deficiency. Otol Neurotol 2007;28:597–604CrossRefGoogle ScholarPubMed
Miyasaka, M, Nosaka, S, Morimoto, N, Taiji, H, Masaki, H. CT and MR imaging for pediatric cochlear implantation: emphasis on the relationship between the cochlear nerve canal and the cochlear nerve. Pediatr Radiol 2010;40:1509–16CrossRefGoogle Scholar
Satar, B, Mukherji, SK, Telian, SA. Congenital aplasia of the semicircular canals. Otol Neurotol 2003;24:437–46CrossRefGoogle ScholarPubMed
Yamashita, K, Yoshiura, T, Hiwatashi, A, Tuvshinjargal, D, Kamano, H, Inoguchi, T et al. Sensorineural hearing loss: there is no correlation with isolated dysplasia of the lateral semi-circular canal on temporal bone CT. Acta radiol 2011;52:229–33CrossRefGoogle ScholarPubMed
Tahir, E, Bajin, MD, Atay, G, Mocan, BO, Sennaroǧlu, L. Bony cochlear nerve canal and internal auditory canal measures predict cochlear nerve status. J Laryngol Otol 2017;131:676–83Google ScholarPubMed
Stjernholm, C, Muren, C. Dimensions of the cochlear nerve canal: a radioanatomic investigation. Acta Otolaryngol 2002;122:43–8CrossRefGoogle ScholarPubMed
Kono, T. Computed tomographic features of the bony canal of the cochlear nerve in pediatric patients with unilateral sensorineural hearing loss. Radiat Med 2008;26:115–9CrossRefGoogle ScholarPubMed
Breheret, R, Brecheteau, C, Tanguy, JY, Laccourreye, L. Bilateral semicircular canal aplasia. Eur Ann Otorhinolaryngol Head Neck Dis 2013;130:225–8Google ScholarPubMed
Morimoto, AK, Wiggins, RH, Hudgins, PA, Hedlund, GL, Hamilton, B, Mukherji, SK et al. . Absent semicircular canals in CHARGE syndrome: radiologic spectrum of findings. AJNR Am J Neuroradiol 2006;27:1663–71Google Scholar
Wineland, A, Menezes, MD, Shimony, JS, Shinawi, MS, Hullar, TE, Hirose, K. Prevalence of semicircular canal hypoplasia in patients with CHARGE Syndrome: 3C Syndrome. JAMA Otolaryngol Head Neck Surg 2017;143:168–77CrossRefGoogle ScholarPubMed
Goetz, GF. Persistent petrosquamosal sinus: high incidence in cases of complete aplasia of the semicircular canals. Radiology 2011;259:825–33Google Scholar
Yi, JS, Lim, HW, Kang, BC, Park, SY, Park, HJ, Lee, KS. Proportion of bony cochlear neve canal anomalies in unilateral sensorineural hearing loss in children. Int J Pediatr Otorhinolaryngol 2013;77:530–3CrossRefGoogle Scholar
Joshi, VM, Navlekar, SK, Kishore, GR, Reddy, KJ, Kumar, ECV. CT and MR imaging of the inner ear and brain in children with congenital sensorineural hearing loss. Radiographics 2012;32:683–98Google Scholar
Yu, KK, Mukherji, S, Carrasco, V, Pillsbury, HC, Shores, CG. Molecular genetic advances in semicircular canal abnormalities and sensorineural hearing loss: a report of 16 cases. Otolaryngol Head Neck Surg 2003;129:637–46CrossRefGoogle ScholarPubMed
Sefein, I, Younes, A, Omara, A, Hamada, S, Sami, A, EL Rouby, I. Outcome of cochlear implantation in children with enlarged vestibular aqueduct (EVA) and mondini dysplasia (incomplete partition type II). J Med Sci Res 2018;1:17–25CrossRefGoogle Scholar
Buchman, CA, Copeland, BJ, Yu, KK, Brown, CJ, Carrasco, VN, Pillsbury, HC 3rd. Cochlear implantation in children with congenital inner ear malformations. Laryngoscope 2004;114:309–16CrossRefGoogle ScholarPubMed