Electrode Migration in Patients with Perimodiolar Cochlear Implant Electrodes

Audiology & Neuro-otology
Philipp MittmannIngo Todt

Abstract

Migration of a cochlear implant electrode is a hitherto uncommon complication. So far, array migration has only been observed in lateral wall electrodes. Between 1999 and 2014, a total of 27 patients received bilateral perimodiolar electrode arrays at our institution. The insertion depth angle was estimated on the initial postoperative scans and compared with the insertion depth angle of the postoperative scans performed after contralateral cochlear implantation. Seven (25.93%) patients were found to have an electrode array migration of more than 15°. Electrode migration in perimodiolar electrodes seems to be less frequent and to occur to a lower extent than in lateral wall electrodes. Electrode migration was clinically asymptomatic in all cases.

Citations

Apr 30, 2019·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Martin LeinungAndreas G Loth
Nov 5, 2019·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Andreas German LothMartin Leinung
May 27, 2020·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Anisha R NobleDavid L Horn
Aug 18, 2020·Insights Into Imaging·Gerlig WidmannJoachim Schmutzhard
May 15, 2019·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Martin LeinungAndreas G Loth
Feb 23, 2020·Cochlear Implants International·Akira IshiyamaPaul Boyd
Dec 6, 2020·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Saad AlenziAbdulrahman Alsanosi

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