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Facial nerve anomalies in paediatric cochlear implant candidates: radiological evaluation

Published online by Cambridge University Press:  05 December 2016

F B Palabiyik ,
K Hacikurt  and
Z Yazici
F B Palabiyik*
Affiliation:
Department of Pediatric Radiology, Uludağ University, Bursa, Turkey
K Hacikurt
Affiliation:
Department of Pediatric Radiology, Uludağ University, Bursa, Turkey
Z Yazici
Affiliation:
Department of Pediatric Radiology, Uludağ University, Bursa, Turkey
*
Address for correspondence: Dr F B Palabiyik, Department of Pediatric Radiology, Uludağ University Faculty of Medicine, 16059 Gorukle, Bursa, Turkey Fax: +90-224-2950019 E-mail: figen_dr@yahoo.com
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Abstract

Background:

Pre-operative radiological identification of facial nerve anomalies can help prevent intra-operative facial nerve injury during cochlear implantation. This study aimed to evaluate the incidence and configuration of facial nerve anomalies and their concurrence with inner-ear anomalies in cochlear implant candidates.

Methods:

Inner-ear and concomitant facial nerve anomalies were evaluated by magnetic resonance imaging and temporal high-resolution computed tomography in 48 children with congenital sensorineural hearing loss who were cochlear implant candidates.

Results:

Inner-ear anomalies were present in 11 out of 48 patients (23 per cent) and concomitant facial nerve anomalies were present on 7 sides in 4 patients (7 per cent of the total). Facial nerve anomalies were accompanied by cochlear or vestibular malformation.

Conclusion:

Potential facial nerve abnormalities should always be considered in patients with inner-ear anomalies. Pre-operative facial nerve imaging can increase the surgeon's confidence to plan and perform cochlear implantation. Magnetic resonance imaging should be used to detect inner-ear anomalies; if these are identified, temporal high-resolution computed tomography should be used to evaluate the facial nerve.

Keywords

ChildFacial NerveEar, InnerRadiology
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 131 , Issue 1 , January 2017 , pp. 26 - 31
Copyright
Copyright © JLO (1984) Limited 2016 

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