Objectives: We sought to delineate the role of cochlear implantation in the management of vestibular schwannoma or other cerebellopontine angle tumors in the only hearing ear. Methods: We performed a retrospective analysis in a quaternary referral skull base center of all patients who were affected by vestibular schwannoma (or other lesions of the cerebellopontine angle) in the only hearing ear and received a cochlear implant before or after tumor treatment (surgery or radiotherapy) or during the wait-and-scan follow-up. We also performed a systematic review of the English-language literature. Results: The clinical and audiological results of 10 patients are reported. All patients were managed with contralateral cochlear implantation. In 7 patients, cochlear implantation was perfouned before tumor removal, while hearing in the ear with the tumor was still present. In 3 patients, the implant was placed after curative surgery. Nine of the 10 patients routinely use their implant with subjective benefit and fairly good auditory performance (median disyllabic word recognition, 90%; median sentence comprehension, 75%). The literature search retrieved no major series with assessment of the long-term efficacy of cochlear implantation in this rare clinical scenario. Conclusions: Patients affected by vestibular schwannoma in their only hearing ear may significantly benefit from a cochlear implant on the contralateral side prior to tumor removal. Recent and significant hearing deterioration and tumor growth represent the main indications for cochlear implantation.
Vestibular Schwannoma in the Only Hearing Ear: Role of Cochlear Implants / Di Lella, F; Merkus, P; Di Trapani, G; Taibah, A; Guida, M; Sanna, M. - In: ANNALS OF OTOLOGY RHINOLOGY AND LARYNGOLOGY. - ISSN 0003-4894. - 122:2(2013), pp. 91-99. [10.1177/000348941312200204]
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