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KMID : 1039520220260020103
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Journal of Audiology & Otology
2022 Volume.26 No. 2 p.103 ~ p.107
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Combined Endoscopic/Microscopic Cochlear Implantation Through the Oval Window
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Cantore Italo
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Abstract
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Standard round window (RW) cochlear implantation is a well-described technique. Implantation might be difficult in patients with inner and middle ear anomalies, in some cases because of not achieving adequate exposure to the RW, with a related higher risk of complications such as facial nerve injury. It is proposed a combined microscopic/endoscopic oval window approach in a 63 year old man affected by bilateral Meniere disease, with bilateral severe sensorineural hearing loss, speech discrimination score for bysillabic words under 40% and a hidden RW by anomalous facial nerve course. All electrodes entered the cochlear with good freefield thresholds and auditory ability results. A partial marginalis nerve palsy occurred at the second postoperative day and completely reversed at 2 months from surgery. Endoscopicassisted oval window cochlear implantation may be a safe alternative surgical technique in cases where surgeons are not able to access RW.
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KEYWORD
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Endoscopy, Cochlear implantation, Facial nerve
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