View clinical trials related to Hearing Loss, Sensorineural.
Filter by:To investigate the effect of sevoflurane and propofol on the concentrations of serum homocysteine and folic acid in children who received cochlear implant surgery.
This study aims to determine the effectiveness of computer games to improve language and literacy outcomes for children who have hearing loss. Children will be assigned to one of four conditions: phonological awareness training, working memory training, phonological awareness + working memory training, or active control.
Phonak Hearing Systems pass through different development and study stages. At an early stage, feasibility studies are conducted to investigate new algorithms, features and functions in an isolated manner. If the benefit is proven, their performance is then investigated regarding interdependency between all available algorithms, features and functions running in parallel in a hearing aid (pivotal/pre-validation studies) and, as a result, they get optimized. Afterwards, and prior to product launch, the Phonak Hearing Systems undergo a final quality control in terms of clinical trials. This is a pre-validation study, investigating optimized algorithms, features, functions and wearing comfort. This will be a clinical evaluation which will be conducted mono centric at Sonova AG Headquarters based in Stäfa (Switzerland).
Within the course of this study, a signal processing feature has been developed at Ecole Polytechnique Fédérale de Lausanne (EPFL), in collaboration with Sonova AG, in order to enhance the listening experience with remote microphone systems. In particular, the developed feature is supposed to improve the so-called audio-visual fusion, i.e. the fact to perceive the sound as coming from the physical location of the source. One of the main goals of the present study is to evaluate the extent to which this feature reaches that objective.
To study the initial experience with implanting and fitting a new Bone Conduction system in pediatric patient population with conductive, mixed or single-sided deafness.
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 primary objective of this study is to assess the usability of a Cochlear implant system.
The objectives of the current project aim to determine whether a more controlled amplification method or a visual administration has an effect on hearing impaired older individuals' cognitive test scores.
This is a prospective, 1:1 randomized controlled trial of immediate versus delayed cochlear implantation (CI) on hearing handicap, communicative function, loneliness, mental wellbeing, and cognitive functioning. Participants are randomized 1:1 to an immediate cochlear implant intervention group versus a hearing aid control intervention.
Purpose: Routine clinical care and pilot study data has shown evidence of postoperative hearing preservation in pediatric cochlear implant (CI) recipients. The primary aim of this study is to investigate speech perception performance in pediatric CI recipients with functional pre-operative hearing. Participants: Two cohorts of CI recipients aged 6 through 17 years who had pre-operative low frequency residual hearing. Subjects in Arm 1 will present with a post-operative low frequency pure tone average (125, 250, and 500 Hz) of ≤ 75 dB HL, and those in Arm 2 will present with a post-operative low frequency pure tone average (LFPTA) that exceeds 75 dB HL. Procedures (methods): Subjects will complete speech perception and quality of life testing during post-operative intervals. Subjects in Arm 1 will be evaluated with the hearing aid alone (HA-alone) and with combined electric-acoustic stimulation (EAS). Subjects in Arm 2 will be evaluated with the CI-alone.