View clinical trials related to Presbycusis.
Filter by:The ageing process is known to be accelerated in HIV-infected patients, compared to the general population. Normal age-related hearing loss (presbyacusia) is a frequent phenomenon, affecting more than 70% of people above 65 years. It is believed to be mostly the consequence of a mitochondrial damage caused by oxidative stress. Risk factors for accelerated age-related hearing loss are present in many HIV-infected patients : chronic inflammation, smoking, diabetes, etc. The global aim is to measure the prevalence of presbyacusia in a well controlled HIV positive population in France, and to compare it to HIV negative controls matched for age and sex. 90 HIV positive patients and 90 age- and sex- matched HIV negative controls will undergo a screening for presbyacusia (pure-tone, speech and evoked-response audiometry). We expect to find an increased prevalence of presbyacusia in HIV-infected patients, as compared to controls matched for age and sex.
Hearing in noisy environments is a perceptual problem that is ubiquitous in modern industrialized societies. This particular listening context offers a particular challenge to individuals living with hearing impairment (30 million in US alone) even after treatment with hearing aids or cochlear implants. The ability of the brain to extract regularities from the environment and suppress distracting information can be improved with intensive cognitive training. The investigators will test whether the hearing in noise abilities of adults living with hearing impairment can be improved with a cognitive training paradigm.
The primary purpose of the study is to develop and test the preliminary efficacy of a first-in-kind community-based intervention to provide affordable, accessible and effective hearing health care to low-income, minority older adults.
The purpose of this study is to investigate the effectiveness of an auditory training program used at home with the subject's own hearing aids.
A personal sound amplifying device (PASP) like Teo First is a wearable electronic product that is not intended to compensate for impaired hearing, but rather is intended for non-hearing impaired consumers to amplify sounds in the environment for a number of reasons, such as for recreational activities. Nevertheless, a lot of mild and moderate impaired hearing people don't want to buy and wear all day a real hearing aid. The goal of our study is to evaluate the benefit of such a device for mild and moderate presbycusis patient 60 years of age and older, with no previous hearing aid.
The purpose of this study is to compare the outcomes for two different hearing-aid delivery models. In one model, the audiologist selects and fits the hearing aid and, in the other model, the consumer does this directly.
Age-related hearing loss, or presbyacusis, is one of the most common chronically handicapped conditions for the elderly. Many factors including genetics, diet, diseases, drugs, socioeconomic factors and environmental variables were considered to be related to the development of presbyacusis. Evidences have shown that genetic factors play an important role on presbyacusis. However, which genes or their genotypes are associated with presbycusis remain unknown. The aim of this project was to evaluate the association between the genotype of candidate genes and presbyacusis by cross-section and case-control study. In the first stage, the investigators plan to select 700 healthy subjects older than 50 with symmetric, sensorineural hearing loss. The subjects will receive basic otologic examination, pure tone audiometry, questionnaire, and genotype analysis. Because gender and age would affect hearing loss significantly, The investigators will convert the hearing level of all subjects into a gender and age independent Z-score according to ISO 7029 standard. And, The investigators define subjects within higher 30 % of Z-score as the presbyacusis group, and subjects within lower 30% of Z-score as the control group. Finally, The investigators perform Chi square analysis to test the association between genotype of candidate genes or their combinations in both groups, and calculate the odds ratio for presbyacusis between different genotype of candidate genes. Further more, we will evaluate the effect of genotype of candidate genes, environment factors, and gene-environmental interaction on the severity of presbyacusis by multivariate logistic regression. In the second stage, The investigators wish to know the pattern of genotype and hearing level in the high risk families, according to results from the first stage, by description and case-control study. The investigators will perform t-test to evaluate the difference of Z-score in both groups. Besides, The investigators try to evaluate the effects of genotypes, environment factors, and gene-environmental interaction on hearing level in high risk families by multivariate logistic regression.
This is a 12-months' randomized clinical trial that aims at studying the benefit of bilateral hearing aids in hearing impaired patients suffering from a slight to moderate stage Alzheimer disease. The benefit of this intervention will be studied in the cognitive, behavioural, quality of life and economic fields. 2groups are involved in this trial: Intervention group: 12 months' treatment with active hearing aids, fitted hearing impairment Control group: 6 months' treatment with placebo hearing aids, followed with 6 months' active hearing aids, fitted hearing impairment
The primary complaint of individuals with hearing loss is difficulty understanding speech in the presence of background noise. Although hearing aids help individuals understand speech in background noise better, there is a high rate of hearing aid rejection in part due to continued difficulty understanding speech in complex listening situations. The results of this study may demonstrate that speech-in-noise test results can be a predictor of hearing aid success. The results of this study also may lead to further studies that can evaluate interventions to improve hearing aid success for individuals who are identified as unsuccessful hearing aid users.