View clinical trials related to Deafness.
Filter by:The purpose of this study is to examine the short-term effects of complementing an educational program for hearing aid users with Internet support.
The rationale behind this clinical performance investigation is to collect data regarding the usability of the Baha Attract System in patients with hearing impairment that are candidates for Baha surgery: - To describe the expected hearing performance with the Baha Attract in comparison to unaided hearing thresholds or a pre-test situation using a sound processor together with a softband - Which sound processor to select, i.e. BP100 vs BP110 - Improve the fitting process for the sound processor - Selection of sound processor magnet at time of fitting and over time
The AGE (Active Geriatric Evaluation) aims to develop a brief assessment tool adapted to the primary care setting.
To demonstrate that the minimally invasive surgical procedure in combination with the use of the Cochlear Baha BA400 abutment is associated with a reduction of inflammation/infection, overgrowth, pain and numbness at the site of implantation compared to the traditional surgical procedure in combination with the use of the standard Baha abutment (Cochlear Baha BA300 Abutment). To demonstrate that the minimally invasive surgical procedure in combination with the use of the Cochlear Baha BA400 abutment is associated with a reduction in direct medical costs, due to shorter surgical procedures, faster wound healing and less complications compared to the traditional surgical procedure in combination with the use of the standard Baha abutment (Cochlear Baha BA300 Abutment).
The purpose of this study is to measure objectively the coupling from direct acoustic cochlear stimulation to the inner ear with a non-invasive technique of auditory evoked potentials.
- As the left and right hemisphere are specialized for different auditory tasks, the proposed study aims at demonstrating different consequences of right or left-sided deafness for the affected individual. - Furthermore, the question should be answered if auditory deficits and plastic changes can be partially reversed by cochlear implantation of the deaf ear. - Multicenter, prospective, open, non-randomized clinical trial with 5 patients with right-sided and 5 patients with left-sided sensineural deafness. - Pre-operative: Audiometry, Sound Localization Audiometry, PET, EEG/MEG - Comparison of pre-operative investigations with 10 healthy subjects (age and gender matched control group) - Cochlea implantation - Follow-up Visits at 3, 6, 9 and 12 month post-operative: Audiometry, Sound Localization Audiometry, PET, EEG, Questionnaires - Trial with medical device
The overall aim of the study is to investigate the Ponto wide implant considering; initial implant stability, stability over time, skin reaction and long term success when loaded at 3 weeks post surgery. Patients' quality of life improvements following implantation will also be surveyed. More specifically the primary objective of this clinical study is to test the hypothesis - The new Ponto wide diameter implant offers increased implant stability measured as ISQ (implant stability quotient) compared to the previous generation Ponto implant. And the secondary objective is to - Investigate when in time implant stability is the lowest as the initial mechanical stability is gradually replaced by biological stability
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.
People with single-sided deafness (SSD) have significant hearing loss in one ear and normal or near normal hearing in the other ear. Those living with SSD experience several communication difficulties, particularly when listening to speech in the presence of background noise. This problem is worse in situations where the noise is on the side of the good ear and the speech is on the side of the poor ear. The Bone-Anchored Hearing Aid (BAHA) and the Contralateral Routing of Signals (CROS) hearing aid are two devices designed to improve hearing in people who have significant hearing loss in one ear only. The BAHA is a surgically implanted device which also includes an external processor; sounds from the poor ear are transmitted to the good ear through skull vibrations. The CROS does not involve surgery; instead a hearing aid is fitted behind each ear, and the sounds on the side of the poor ear are wirelessly transmitted to the good ear. The majority of previous studies comparing the BAHA to the CROS have used older CROS models with basic technology and a wire along the neck to send sounds from the poor ear to the good ear. There is a lack of studies comparing newer digital wireless CROS hearing aids to the BAHA. The current research will compare the effect of the BAHA and CROS hearing aid on speech perception scores when listening to speech in quiet and in noise. The research will also investigate patients' reported benefits with each device during everyday situations. In order to compare the BAHA and CROS, individuals who already have been implanted with a BAHA will be given a trial period with a new wireless digital CROS hearing aid. The research hypothesis states that the CROS hearing aid will be as equally beneficial or greater than the BAHA in improving hearing and patient benefit. If the findings support the hypothesis that the CROS offers just as much benefits as the BAHA, or is an even better alternative, more patients may choose to avoid surgery and decide to receive a CROS hearing aid instead.
The goal of this study is to determine whether daily assessment and feedback of workers' noise exposures leads to more effective use of hearing protection and prevention of noise-induced hearing loss.