The goal of this research was to see how cochlear implantation (CI) performed after stereotactic radiosurgery (SRS) for vestibular schwannoma fared (VS). Adult patients with VS treated with SRS who underwent CI between 1990 and 2019 at a single tertiary care referral hospital were studied retrospectively. Patient demographics, tumour characteristics, treatment settings, and audiometric and clinical outcomes before and after implantation are all reported. Seventeen patients (18 ears) underwent SRS and ipsilateral CI during the study period. Thirteen patients (76 percent ) had neurofibromatosis type 2 (NF2) Median age at SRS was 44 and 48 years median time from SRS to CI was 60 days. Overall, 11 patients (12 ears) exhibited open-set speech understanding. The median AzBio sentence score for patients with open set speech understanding was 76 percent. The majority of patients who received CI after SRS for VS had near-normal sound access, with the majority achieving satisfactory open-set speech understanding. Implantation can be done immediately after SRS or later, depending on the patient’s hearing level and other considerations. This approach can be used in cases of sporadic or NF2-related VS.
Reference Link – https://thejns.org/view/journals/j-neurosurg/135/1/article-p126.xml