Evaluation of Saccular Function Pre-Post Cochlear Implant SurgeryUsing VEMPs

Objectives: the aim of present study was evaluation of saccular function in cochlear implant candidateswith severe to profound sensory neural hearing loss. before and after cochlear implantationmethods: in this study 35 cochlear implant (ci) candidates with bilateral severe to profound sensoryneural hearing loss before and about 30 days after cochlear implantation and 20 normal-hearing cases as acontrol group underwent vemp test. both groups were matched based on gender and age.results: vemp responses were absent bilaterally in 10 out of 35 patients. 4 patients were excluded fromthe study because they did not receive ci during present study. from 21 remaining patients, 5 cases lostvemp response in their implanted ear after surgery. in control group, vemp responses were presentbilaterally.discussion: the results of present study show that saccular dysfunction in ci candidates is extremelyprobable and this is possible that saccule get impaired after ci.