Cochlear Implantation in Sporadic Vestibular Schwannoma: A Systematic Literature Review
Journal of Neurological Surgery Part B-Skull Base
Bartindale, M. R., Tadokoro, K. S., et al. (2019).
Journal of Neurological Surgery Part B-Skull Base, 80(6), 632-639.
This systematic review investigates the effects of ipsilateral cochlear implantation on a variety of outcomes (e.g., postoperative auditory outcomes, postoperative tinnitus outcomes) in individuals with sporadic vestibular schwannoma.
No funding received
From database inception to October 2017
Studies presenting unaggregated data (not further specified)
16
Individuals with sporadic vestibular schwannoma (VS) demonstrated an average speech discrimination score of 56.4% (improved from 30.0%), an average Arizona biomedical institute sentence test score of 75%, and an average post-implant audiometry threshold of 28.8 dB after ipsilateral cochlear implantation (CI). Factors such as tumor resection status, tumor location, duration of deafness, ipsilateral pure tone average, and timing of CI placement had no significant effect on auditory outcomes. The authors conclude that "CI in sporadic VS can be considered in a subset of patients where the cochlear nerve is intact" (p. 637).
Individuals with sporadic vestibular schwannoma who demonstrated tinnitus symptoms reported tinnitus improvement after cochlear implantation (CI). One patient, whose tumor was not resected, reported worse tinnitus symptoms post-CI.
