| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
Although numerous studies have reported the effects of cochlear implant surgery on the vestibular function, there have been no reports examining the vestibular function of the postoperative effects of new atraumatic concepts of electrode and surgical techniques, and only a few reports on vestibular function in patients with hereditary hearing loss who will be candidates of cochlear implantation surgery. In this research, we examined the vestibular functions in patients diagnosed with hereditary hearing loss and the changes in vestibular functions after implantation in patients who underwent atraumatic surgery.
About 50% of the patientswith causative genes of hereditary hearing loss who underwent vestibular tests (caloric testing, cVEMP and oVEMP) had at least one vestibular dysfunction. The vestibular function was well preserved after atraumatic cochlear implantation surgery.
The round window approach and soft electrode are preferred to decrease the risk of impairing vestibular function.
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