Cochlear implant failures: lessons learned from a UK centre

Masterson, Liam; Kumar, Satendra; Kong, Jonathan; Briggs, John; Donnelly, Neil; Axon, Patrick; Gray, R. F.

doi:10.1017/s0022215111002829

Cited by 46 publications

(33 citation statements)

References 20 publications

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“…Revision CI is generally recognized as a safe and effective surgery (3,13,14). Auditory performance is not affected in 89% to 100% of patients who undergo revision CI (14).…”

mentioning

confidence: 99%

Revision Cochlear Implantation With Different Electrodes Can Cause Incomplete Electrode Insertion and Poor Performance

Shin¹,

Park²,

Lee³

et al. 2013

Otology &Amp; Neurotology

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In this study, full electrode insertion was achieved in all cases where the same type of electrode was used during initial and revision CI. In contrast, we noticed incomplete insertion in 4 of 5 patients who had revision electrodes that differed from initial electrodes. While incomplete electrode insertion does not necessitate poor speech performance, some patients with incomplete electrode insertion certainly experience it. Therefore, electrode selection requires circumspection in revision CI. Choosing a thinner electrode for revision CI may reduce the possibility of incomplete electrode insertion.

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“…Revision CI is generally recognized as a safe and effective surgery (3,13,14). Auditory performance is not affected in 89% to 100% of patients who undergo revision CI (14).…”

mentioning

confidence: 99%

Revision Cochlear Implantation With Different Electrodes Can Cause Incomplete Electrode Insertion and Poor Performance

Shin¹,

Park²,

Lee³

et al. 2013

Otology &Amp; Neurotology

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“…[ 216 ] . In einer weiteren Studie wurden Elektrodenfehllagen bei 2 von 746 Cochlea-Implantationen beobachtet [ 227 ] . Schwierigkeiten bei der Elektrodeneinführung (1-mal Elektrodenbeschä-digung, 2-mal Kompression der Elektrode, 11-mal falsche Positionierung der Elektrode und 6-mal keine Einführmöglichkeit bei Ossifi kationen) in die Cochlea wurden bei 21 von 550 CochleaImplantationen angegeben [ 217 ] .…”

Section: Cochlea Implantationunclassified

Fehler und Gefahren: Ohrchirurgie und Chirurgie der lateralen Schädelbasis

Schick

Dlugaiczyk

2013

Laryngo-Rhino-Otol

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Surgery of the ear and the lateral skull base is a fascinating, yet challenging field in otorhinolaryngology. A thorough knowledge of the associated complications and pitfalls is indispensable for the surgeon, not only to provide the best possible care to his patients, but also to further improve his surgical skills.Following a summary about general aspects in pre-, intra- and postoperative care of patients with disorders of the ear/lateral skull base, this article covers the most common pitfalls and complications in stapes surgery, cochlear implantation, surgery of vestibular schwannomas, and jugulotympanal paragangliomas. Based on these exemplary procedures, basic "do's and don'ts" of skull base surgery are explained, which the reader can easily transfer to other disorders. Special emphasis is laid on functional aspects, such as hearing, balance and facial nerve function. Furthermore, the topics of infection, bleeding, skull base defects, quality of life and indication for revision surgery are discussed.An open communication about complications and pitfalls in ear/lateral skull base surgery among surgeons is a prerequisite for the further advancement of this fascinating field in ENT surgery. This article is meant to be a contribution to this process.

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“…On the contrary, a “soft” device failure is characterized by a deterioration of hearing performance, which cannot be attributed to any other cause. Fifteen hard and five soft device failures were reported in a series of 746 cochlear implantations [225]. …”

Section: Selected Surgical Proceduresmentioning

confidence: 99%

“…The latter two have to be considered particularly in patients with cochlear malformations. Placement of the electrode array in the vestibulum was reported in four out of 720 cochlear implantations; one of these patients had a Mondini deformity, and three showed cochlear ossification following meningitis [225]. Difficulties with the insertion of the electrode array were reported in 21 of 550 cochlear implant procedures, these resulted in: damage (n=1), compression (n=2) and improper placement of the electrode (n=11) or failed insertion due to cochlear ossification (n=6) [215].…”

Section: Selected Surgical Proceduresmentioning

confidence: 99%

“…Inflammatory disorders, such as chronic suppurative otitis media and retroauricular abscess formation, were the most common causes for explantation (n=11) in a series of 746 patients [225]. In general, the ear surgeon should consider to place a dummy into the cochlea if the implant has to be removed in order to maintain cochlear patency for a possible reimplantation.…”

Section: Selected Surgical Proceduresmentioning

confidence: 99%

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