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Cochlear implant electrode array misplacement: a cautionary case report

Published online by Cambridge University Press:  01 February 2012

E Muzzi ,
P Boscolo-Rizzo ,
R Santarelli  and
M A Beltrame
E Muzzi*
Affiliation:
Audiology and Phoniatrics Service, University of Padua School of Medicine, Treviso Regional Hospital, Italy Otorhinolaryngology Unit, Department of Surgical Specialties, Santa Maria della Misericordia University Hospital, Udine, Italy
P Boscolo-Rizzo
Affiliation:
Otolaryngology Section, Department of Medical and Surgical Specialties, University of Padua School of Medicine, Treviso Regional Hospital, Italy
R Santarelli
Affiliation:
Audiology and Phoniatrics Service, University of Padua School of Medicine, Treviso Regional Hospital, Italy
M A Beltrame
Affiliation:
Division of Otorhinolaryngology, Santa Maria del Carmine Hospital, Rovereto, Trento, Italy
*
Address for correspondence: Dr Enrico Muzzi, Audiology and Phoniatrics Service, Department of Medical and Surgical Specialties, University of Padua School of Medicine, Treviso Regional Hospital, Piazza Ospedale, 1-31100 Treviso, Italy Fax: +39 0422 322351 E-mail: [email protected]
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Abstract

Objective:

To report a series of pitfalls and complications in a case of cochlear implantation.

Method:

Case report.

Results:

An 11-year-old boy affected by auditory neuropathy underwent cochlear implantation. Intra-operative assessment was apparently consistent with correct insertion of the electrode array into the cochlea. However, subsequent high resolution computed tomography revealed that the entire electrode array was curled up within the vestibule. Revision surgery was complicated by cerebrospinal fluid leakage. A straight probe was repeatedly inserted into the internal auditory canal, before conversion to a canal wall down procedure and appropriate positioning of the electrode array.

Conclusion:

In this case, mild anteriorisation of the facial nerve created an awkward insertion angle for the electrode array via the retro-facial route, which may have triggered the described series of adverse events.

Keywords

Cochlear ImplantationFacial NerveComplications
Type
Clinical Records
Information
The Journal of Laryngology & Otology , Volume 126 , Issue 4 , April 2012 , pp. 414 - 417
Copyright
Copyright © JLO (1984) Limited 2012

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