Study: NCT05246553

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Electrical stimulation of the vestibular system
Description: Patients are implanted with a modified cochlear implant (CI) which comprises one to three extracochlear electrodes that are placed in the proximity of vestibular afferents (i.e., vestibular nerves or the ampullae of each semicircular canal), and an intracochlear array. Trains of electrical stimulation in the form of charge-balanced, biphasic pulses can be delivered through each of the implanted electrodes (cochlear or vestibular) and modulated via computer-controlled signals, audio signals (captured with a microphone) or by signals captured by head-mounted motion sensors.

Intervention type: PROCEDURE
Group type: ACTIVE_COMPARATOR
Intervention: Electrical stimulation of the auditory system
Description: A cochlear implant (CI) is a device providing a sense of sound to a person who suffers from severe to profound sensorineural hearing loss. A CI comprises the following parts, a microphone (capturing the sound from the environment), a speech processor (receiving and encoding the sounds captured by the mircophone), a transmitter-receiver antenna pair (transmitting the information from the external to the implanted components), an implanted stimulator (converting the signal into a tonotopically arranged set of electrical pulses) and an electrode array inserted in the cochlea that will deliver the electrical pulses to different portions of the auditory nerve. Trains of electrical stimulation in the form of charge-balanced, biphasic pulses can be delivered through each of the electrodes in the cochlear array and modulated via computer-controlled signals or audio signals (captured with a microphone).

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Electrical stimulation of the auditory system
Description: A cochlear implant (CI) is a device providing a sense of sound to a person who suffers from severe to profound sensorineural hearing loss. A CI comprises the following parts, a microphone (capturing the sound from the environment), a speech processor (receiving and encoding the sounds captured by the mircophone), a transmitter-receiver antenna pair (transmitting the information from the external to the implanted components), an implanted stimulator (converting the signal into a tonotopically arranged set of electrical pulses) and an electrode array inserted in the cochlea that will deliver the electrical pulses to different portions of the auditory nerve. Trains of electrical stimulation in the form of charge-balanced, biphasic pulses can be delivered through each of the electrodes in the cochlear array and modulated via computer-controlled signals or audio signals (captured with a microphone).

Intervention type: DIAGNOSTIC_TEST
Group type: ACTIVE_COMPARATOR
Intervention: Bilateral vestibulopathy Patients (BV)
Description: Diagnosis established on the basis of the consensus document of the Classification Committee of the Bárány Society (Strupp et al., Journal of Vestibular Research, vol. 27, no. 4, pp. 177-189, 2017).

Intervention type: DIAGNOSTIC_TEST
Group type: ACTIVE_COMPARATOR
Intervention: Unilateral vestibulopathy Patients (UV)
Description: Patients with documented diagnosis of unrecovered unilateral vestibulopathy, consistent with the current classification of vestibular disorders of the Bárány Society (www.jvr-web.org/ICVD.html).