View clinical trials related to Deafness.
Filter by:The principal aim of this study is to evaluate the cortical developement of perceptual skills and executive functions over time, in children with cochlear implants aged 10-24 months and 3-7 years compared with normally hearing subjects (NHS). To do this, the investigator will use functional Near InfraRed Spectroscopy (fNIRS) during 4 tasks that engage the childs perceptual and cognitive skills over a period of 18 months. The performance scores obtained by each participants as well as the cortical activity will be analysed and decrypted.
The world population has been growing and aging dramatically, with a rising prevalence of dementia. Worldwide, around 50 million people have dementia, with 10 million new cases added every year. Despite the epidemic scale of dementia, until now no cure or disease-modifying therapy has been identified. Therefore, the World Health Organization (WHO) has recognized dementia as a public health priority. Several large studies have demonstrated that hearing impairment is associated with a greater risk of cognitive impairment. Hearing rehabilitation could potentially provide a disease-modifying therapy to delay cognitive decline. Although auditory behavioral research has not yet revealed a reliable indicator of early cognitive impairment, cortical-evoked auditory potentials (CAEP) have shown promising evidence as a non-invasive way to identify early-stage cognitive impairment. The peripheral vestibular apparatus is located in the inner ear and codes rotation and translation of the head to preserve a stable view. Increasing evidence suggests that bilateral vestibular function loss, also known as bilateral vestibulopathy (BVP), leads to hippocampal atrophy and reduced spatial cognitive skills, as well as structural and functional alterations in parieto-insular and parieto-temporal regions. Many studies have demonstrated that vestibular function declines with age. Vestibular dysfunction can be linked to reduced topographical orientation and memory and has been suggested as a risk factor to AD, due to increased risk of falling and deficits in activities of daily life (ADL). Our first aim is to study the effect of SNHL and vestibular decline on CAEP, spatial and non-spatial cognitive functioning and trajectories in cognitively healthy older subjects, as well as patients with mild cognitive impairment (MCI) and AD. Our second aim is to study if MRI brain volume changes can be observed in the hippocampus, entorhinal cortex, and auditory and vestibular key regions in these populations and correlate with CAEP and cognitive functioning. The expected outcome is important to society because it will provide data from a cognitive assessment protocol adapted for a potentially hearing-impaired population, objective outcome measures (incl. CAEP and MRI brain volume changes) to identify older subjects with SNHL and BVP at risk for cognitive decline, and will support screening and interventional studies to assess the impact of rehabilitation on slowing down cognitive decline.
There is high variability in outcomes in children with hearing impairment. Existing literature focus mainly on subpopulations (children with hearing aids, children with CI) and is usually not epidemiological. Often children with additional needs (intellectual disability, visual impairment, autism spectrum disorder, complex syndromes) are excluded from the studies. This subgroup of children makes up around 1/3 of the population of children with hearing impairment. What factors contribute to the unexplained variance in language development in children with hearing loss? (including children with additional needs, multilingual) There is a lack of European epidemiological studies that evaluate the effects of Newborn Hearing Screening and early intervention.
Although many intratympanic agents have been attempted, N-Acetylcysteine (NAC) appears to be the most promising and is a powerful, commonly used anti-oxidant. The goal of this prospective phase 2 randomized controlled trial is to determine the optimal dosage and effectiveness of intratympanic NAC injection in reducing hearing loss in head & neck cancer patients receiving cisplatin chemotherapy with curative intent.
The long-term effect of general anesthesia on developing brain is the focus of clinicians when infants exposed to general anesthesia for a long time during operation. A retrospective study showed that children exposed to long-term or repeated operations, the anesthetics had a higher incidence of cognitive impairment in adolescence than those did no. When infants with hearing impairment undergo bilateral cochlear implant surgery, they are at high risk of long-term neurobehavioral abnormalities caused by anesthesia. In this study, investigators intend to observe the long-term behavioral abnormalities of hearing-impaired infants after unilateral or bilateral cochlear implantation.
Multi-channel cochlear implants have been highly successful in restoring speech understanding to individuals with severe-to-profound hearing loss. Optimal programs facilitate access to sound but do not necessarily result in optimal performance. Practiced listening with auditory inputs is required to retrain the brain to hear using a cochlear implant. In some cases exposure to sound in everyday listening is sufficient; however, in others there is a need for the provision of auditory training (AT) by a trained professional. In these cases it is important to have regular visits with a specialist to: 1) facilitate auditory training exercises; 2) work with the family/friends to encourage optimal communication strategies in the home; 3) evaluate and assess achievement of listening goals. This study seeks to evaluate the feasibility of providing auditory training services remotely for patient populations located outside of Toronto. This study also seeks to evaluate interindividual perspectives regarding access and benefits of these services across remote and in person sessions.
Evaluation of a cohort of deaf children looking for autosomal recessive deafness-9 (DFNB9). Clinical and audiologic evaluation of patients with known auditive neuropathy / auditory dys-synchrony (ANAD) or recently diagnosed congenital severe to profound hearing loss (HL), and assessing genetic analysis looking for DFNB9. The investigators expect to compile genotypic and phenotypic characterization of 25 children with DFNB9 within 4 years.
This clinical randomized controlled study is to explore the effect of positive airway pressure(PAP) on patients in Beijing Tsinghua Changgung Hospital diagnosed with both idiopathic sudden sensorineural hearing loss comorbided(ISSHL) and obstructive sleep apnea(OSA) between Dec. 2019 to Dec. 2029.
The Apple Hearing Study is a partnership between the University of Michigan and Apple to study sound exposure and its impact on hearing health. This groundbreaking study will advance the understanding of how hearing could be impacted over time by exposure to sound at certain levels. The investigators will measure headphone and environmental sound exposures over time among participants, and determine how these exposures impact hearing and stress levels. US residents who own an iPhone, download the Apple Research app and consent to participate will be randomly assigned to two groups, one with a "Basic" user interface in the Research app, and one with an "Advanced" user interface. Users in the "Advanced" group will receive additional information about their exposures and be given additional surveys and hearing tests based on their music and environmental sound exposures. The study will provide investigators with a better understanding of listening behavior and its overall impact on hearing health. This information will in turn help guide public health policy and prevention programs designed to protect and promote hearing health in the US and globally.
The aim of this study is to evaluate hearing characteristics in patients with and without tinnitus using DPOAE and specific tinnitus severity index (TSI) and tinnitus handicap inventory (THI) questionnaires in both groups. Purpose of the research: Demonstrate that the characteristics of tinnitus depend on the presence and magnitude of hearing loss. Research participants: 150 patients coming for further audiological treatment due to tinnitus. Data will be collected from an electronic database that is filled in during diagnostic processing. During the diagnostic processing, TSI and THI questionnaires will be filled in, a tone audiogram (TA) and DPOAE will be performed.