View clinical trials related to Cochlear Implant.
Filter by:Non-significant risk evaluation of the iotaSOFT Insertion System when used by a surgeon to assist with inserting a cochlear implant electrode array.
Some patients are having balance problems after cochlear implant surgery. There are contradictory reports about the effect of the implant on postural control. While the cochlear implant is working, an electrical current is continuously stimulating the cochlear nerve which is in close proximity with vestibular ganglion and nerve. This stimulation may contribute to vestibular signals to the central system. The aim of the study is to investigate if this stimulation has any effect on postural control.
The study will involve the comparison of three groups with severe-profound hearing loss. Patients with a Cochlear Implant only, patients with a cochlear implant and Hearing Aid, and finally patients with two hearing aids. This will enable a comparison of standard fitting protocols against the new rationale using the same devices. Devices used for patients in all 3 groups are now available in standard of care, and can be kept afterwards should the patients wish.
Background The authors' aim was to compare the influence of various electrode designs on selected objective and subjective clinical outcomes for cochlear implant recipients using the same model of receiver-stimulator, Cochlear™ Nucleus® Profile Series and sound processor. Methods A multicenter study with subjects with profound sensorineural hearing loss, who were implanted and followed up in two tertiary centers. A total of 54 ears were implanted with Cochlear™ Nucleus® CI532, 51 with Cochlear™ Nucleus® CI522 and 54 with the Cochlear™ Nucleus® CI512. Implant loss and intraoperative electrophysiological tests (electrically evoked stapedial reflex threshold [ESRT], neural response telemetry threshold [T-NRT] and impedance), postoperative data (C-level, T-level, dynamic range, T-NRT and power consumption) and intracochlear position of the active electrode were analyzed with Nucleus Custom Sound 4.4 software.
Use of Artificial Intelligent (AI) technology to assist audiologists in programming cochlear implants.
360 million people in the world suffer from debilitating hearing deficiency. The cochlear implant is indicated in certain patients with severe profound deafness. The principle of the cochlear implant is to directly stimulate auditory nerve fibres by electrodes inserted in the cochlea. The steps in auditory rehabilitation are the surgical insertion of the cochlear implant, activation, and follow-up regulation. There is no formal consensus to define the exact modalities for regulation during activation or follow-up, but the principles are respected according to centres that regulate cochlear implant. Bimodal audition is the fact of having a cochlear implant and a contralateral hearing aid. In patients with cochlear implants, having binaural bimodal audition improves their auditory vocal performance in silence and in noisy environments. It needs to be considered when a second cochlear implant is not indicated for the contralateral ear. It has been shown that by allocating frequencies different from the default frequencies attributed by the manufacturer, intelligibility and perception of music are modified. The investigators therefore with to study this working hypothesis and to develop a simple protocol for the reallocation of frequencies in order to optimise auditory performance in the everyday lives of patients with implants by using an evolutionary algorithm.
Some candidates to cochlear implantation can have residual low frequencies hearing. The EVO electrode lead has been specifically designed to preserve this residual hearing through surgery. It is then possible to provide the patient with a electro-acoustic stimulation (EAS) which combines both an acoustical stimulation for the preserved low frequency hearing and an electrical stimulation through the cochlear implant. The major aim of this study is to evaluate hearing preservation after implantation with the EVO electrode lead. The secondary outcome is to evaluate the benefit of EAS stimulation provided by the Zebra speech processor.
Recent studies have reported successful reduction of tinnitus after cochlear implantation (CI) in most CI users, but the mechanisms of reduction and the amount of improvement is not fully understood. Especially, the relative role of peripheral and central auditory pathways is not clearly known. This study assessed the effect of CI electrical stimulation on tinnitus in subjects with unilateral tinnitus related to a single-sided deafness (SSD), and relative contributions of peripheral and central auditory pathways in tinnitus reduction.
The purpose of this study is to determine if aural rehabilitation adds measurable benefit and participant satisfaction to a cochlear implant recipient's overall treatment. Also, the study is designed to compare the efficacy of a commercially available aural rehabilitation program (LACE) and an electronic program which takes advantage of a traditional form of auditory training (NOOK) for cochlear implant users.
The investigators goal is to determine the efficacy and duration of analgesia with the addition of Clonidine, an alpha-2 agonist, to local anesthetic blockade using bupivacaine, of the great auricular nerve in children undergoing tympanomastoid surgery.