Abstract
Simultaneous translabyrinthine tumor resection and cochlear implantation is a promising treatment method with hearing rehabilitation for sporadic vestibular schwannomas. Size of vestibular schwanomma, distance to modiolus, residual hearing and promontory stimulation electrical brainstem response audiometry are important preoperative predictive factors for determining a positive post tumour resection electrically evoked auditory brain stem response. The presence of an electrically evoked auditory brain stem response with an intracochlear test electrode after tumour resection was used to determine whether a patient received a cochlear implant Positive electrically evoked auditory brain stem responses measured with an intracochlear test electrode after tumour resection seem to correlate well with auditory perception with a cochlear implant.
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