Vestibular prosthesis Vestibulaire prothese Vestibular implant Vestibulair implantaat Bilateral vestibular loss Bilateraal vestibulair functieverlies Cochlear implant Cochleair implantaat
Conditions
Interventions
The intervention only takes 20 minutes and is performed during surgery for cochlear implantation.
The beginning of the procedure will be done under local anesthesia. The posterior ampullary nerve and
Sponsors
Maastricht University Medical Centre
Eligibility
Inclusion criteria
Inclusion criteria: 1. Since vestibular surgery still has a risk of deafening the patients, the selected patients are >18 years old, have a bilateral loss of vestibular function and are selected for cochlear implant surgery (in other words: they are already deaf); 2. Giving informed consent.
Exclusion criteria
Exclusion criteria: Patients should be able to undergo balance tests and electric stimulation of the ampullary nerves should not interfere with other electric devises. Therefore, the exclusion criteria are: 1. Incapacitated patients; 2. Carrier of any other implanted electronic device (e.g. pace-maker).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The gain, phase and direction of VOR will be measured with electronystagmography and video-nystagmography in function of frequency and amplitude of electric stimulation in the conditions mentioned below: 1. Patients with different vestibular loss etiology; 2. Stimulation of the lateral ampullary nerve and posterior ampullary nerve; 3. Under general and local anesthesia. | — |
Secondary
| Measure | Time frame |
|---|---|
| Assessment of the subjective feelings during stimulaton of the ampullary nerves in local anesthesia, like vertigo or nausea. | — |
Contacts
Public ContactRaymond Berg, van de
Postbus 5800
Outcome results
None listed