View clinical trials related to Cochlear Hearing Loss.
Filter by:Cochlear Implantation is a system developed to restore hearing in people with profound sensorineural hearing loss, whose classical hearing aids are ineffective. Surgery is necessary to insert the internal part into the cochlea and requires milling the mastoid to access the round window. This approach is technically difficult, and is performed under a microscope by an experienced surgeon. The development of a surgical technique that is both safer and less invasive is currently possible thanks to robotics.
The primary objective of this study is to obtain a greater understanding of the range in benefit from acoustic amplification combined with electric stimulation in cochlear implant recipients with low-frequency hearing who do not currently use the commercially approved Advanced Bionics Acoustic Earhook. The aims of this study are to 1) obtain subjective sound quality judgements of recorded speech and music samples, 2) assess vocal emotion perception, and 3) evaluate post-operative speech perception and sound field detection thresholds in CI recipients both with and without use of the acoustic ear hook.
This study evaluates the benefit of Neuro 1 sound processor upgrade in speech perfomance in adults. Half of participants will be tested with Neuro 1 first and Neuro 2, while the other half will be tested with Neuro 2 first and then Neuro 1.
To investigate the effect of sevoflurane and propofol on the concentrations of serum homocysteine and folic acid in children who received cochlear implant surgery.
After cochlear implantation, cochlear nerve is stimulated by giving a current over the electrodes placed in the cochlea and the current is measured by electrically evoked Compound Action Potential (ECAP).This ECAP is measured intra operatively, after 4 weeks( at switch on), after 3months and 6 months following cochlear implantation.
The present study aims to evaluate patient satisfaction and audiological performance with their current cochlear implant speech processor, the Neuro 1, and to compare it with the satisfaction and performance obtained with the new speech processor, the Neuro 2.
In this study Triamcinolone acetonide will be applied intratympanically before cochlear implant surgery. After round window exposure, a perilymph sample and simultaneously a blood sample will be drawn. Triamcinolone levels will then be analyzed in the samples.
Listening with a cochlear implant remains difficult and most listeners will report high levels of listening effort.The present study is a "pilot" aiming to evaluate listening effort for cochlear implant users. The listening effort is measured with pupillometry, by monitoring the variations of pupil size in response to different stimuli. The size of the pupil is known to increase with the listening effort. The listening effort is evaluated in two different situation: speech perception in quiet and speech perception in noise. The pupillometry measures will be compared for the two listening conditions. Moreover, the study will evaluate the relationship between objective (pupil dilatation) and subjective measures (auto evaluation) of listening effort, and between speech comprehension, cognitive abilities and listening effort.