View clinical trials related to Sensorineural Hearing Loss.
Filter by:PROACTIVE NYS is a long-term follow-up study of all infants who test positive for congenital Cytomegalovirus infection (CMV) throughout New York State on the Newborn Screen. By following all infants who screen positive, we will learn important information about the range of symptoms caused by congenital CMV, from those babies with more severe findings to those with no symptoms. In particular, our study will provide new information about many facets of congenital CMV, including: - Developmental, hearing, neurologic, and vision outcomes - The spectrum and timing of symptoms - The impact congenital CMV has on the baby and its family - How many babies are infected with congenital CMV in New York State How antiviral medications and other interventions impact outcomes of children with congenital CMV Throughout the duration of the study, children will undergo routine developmental and hearing assessments, which will assist with early diagnosis of any infection complications. Any child found to have a neurodevelopmental, hearing, or vision abnormality will be referred for appropriate evaluation and treatment. Families will also be asked to complete periodic surveys about their experience with congenital CMV, both as a medical diagnosis and as it affects their day-to-day activities.
Cochlear implants (CIs) are well-established neuroprosthesis used to restore hearing for patients with partial or complete deafness. However, the audiological outcomes of these implants can vary widely, and one reason for this is suboptimal electrode placement. The gold standard for measuring electrode positions is computed tomography (CT) scans, but they are expensive and expose patients to additional radiation, which is especially harmful for children. This study investigates an alternative approach using impedance telemetry data to estimate electrode positions without exposing patients to radiation. For this purpose, an extended telemetry version of a CE-certified cochlear implant software is used. The advanced impedance telemetry software can measure impedance subcomponents with improved measurement resolution that could be used for more accurate estimation of electrode insertion depth using specially designed estimation software. Ultimately, the investigators want to demonstrate the potential to improve audiological outcomes of cochlear implant recipients without exposing them to additional radiation.
Sensorineural hearing loss (SNHL) is among the most prevalent chronic conditions in aging and has a profoundly negative effect on speech comprehension, leading to increased social isolation, reduced quality of life, and increased risk for the development of dementia in older adulthood. Typical audiological tests and interventions, which focus on measuring and restoring audibility, do not explain the full range of cognitive difficulties that adults with hearing loss experience in speech comprehension. For example, adults with SNHL have to work disproportionally harder to decode acoustically degraded speech. That additional effort is thought to diminish shared executive and attentional resources for higher-level language processes, impacting subsequent comprehension and memory, even when speech is completely intelligible. This phenomenon has been referred to as listening effort (LE). There is a growing understanding that these cognitive factors are a critical and often "hidden effect" of hearing loss. At the same time, the effects of LE on the neural mechanisms of language processing and memory in SNHL are currently not well understood. In order to develop evidence-based assessments and interventions to improve comprehension and memory in SNHL, it is critical that we elucidate the cognitive and neural mechanisms of LE and its consequences for speech comprehension. In this project, we adopt a multi-method approach, combining methods from clinical audiology, psycholinguistics, and cognitive neuroscience to address this gap of knowledge. Specifically, we adopt a novel and innovative method of co-registering pupillometry (a reliable physiological measure of LE) and language-related event-related brain potential (ERP) measures during real-time speech processing to characterize the effects of clear speech (i.e., a listener-oriented speaking style that is spontaneously adopted to improve intelligibility when speakers are aware of a perception difficulty on behalf of the listener) on high-level language processes (e.g., semantic retrieval, syntactic integration) and subsequent speech memory in older adults with SNHL. This innovative work addresses a time-sensitive gap in the literature regarding the identification of objective and reliable markers of specific neurocognitive processes impacted by speech clarity and LE in age-related SNHL.
Many patients receiving cochlear implant (CI) have some residual hearing prior to implantation surgery. However, approximately one third of them will lose it in next 6 months after cochlear implantation. Although the mechanisms involved in the residual audition loss remain unknown, animal experiments suggest the role of inflammatory or immune reaction in the cochlea. The goal of this project is to search in the perilymph (a fluid which fills the scala vestibuli and scala tympani of the cochlea) some predictive biomarkers of the residual hearing loss using modern proteomics and immunological techniques. A parallel search for blood biomarkers of post-implantation residual hearing loss and for molecular and cellular evidences of immune response to cochlear implantation will be performed. The study will recruit 50 subjects-candidates for cochlear implantation surgery; 30 normally hearing individuals eligible for other types of otological interventions will form a control group. For all the participants blood samples will be collected and preserved. In addition, the perilymph sampling will be performed during cochlear implantation surgery. This project relies on the calculation that from 50 patients post-cochlear implantation, 15 patients will form a group with maintained residual hearing and 15 will display delayed hearing loss. For these 30 subjects together with the control group the blood biomarkers search will be performed. For the group of implanted patients, the follow-up will last for 12 months with 6 visits in total : - the inclusion visit V0 during which the study will be presented and the consent form will be signed - the surgery visit V1 with blood sample and perilymph collection - the activation visit V2, 1 month ± 1 week after V1, visit V3 3 months ± 7 days after V1, V4 6 months ± 7 days after V1, V5 12 months ± 1 month after V1. During each of this visit blood sampling will be performed. For the control group, the follow up will be 6 months long with 4 visits in total arranged during the routine follow-up appointments: - the inclusion visit V0 during which the study will be presented and the consent form will be signed - the surgery visit V1, the 1 month visit V2 and the 6 months visit V3 during which the blood sampling will be performed.
The goal of this study is to investigate the role of social factors on speech learning, including production and perception, in infants ranging in age from ~7-18 months. Infants have either typical hearing or sensorineural hearing loss. The main prediction of the study is that social reinforcement will engender improvements in vocal learning above and beyond gains in hearing in infants with hearing loss. As part of this study: - The parent and infant engage in a free play session in the playroom while the investigator cues the parent to say simple nonsense words; - Infants hear playback of the same words during a second phase.
Normal-hearing participants aged 18-25 with and without musical training will listen to a series of short musical samples that have been recorded through hearing aids. The music will be played at a comfortable listening level. Subjects will use the computer to rate the sound quality of the music on a 7-point Likert scale.
Severe to profound hearing loss affects 0,8% of the global population. For these people, a conventional hearing aid often does not provide sufficient benefit. However, these people can benefit from a cochlear implant (CI). A CI needs to be individually programmed (fitted) for each recipient. A fitting "map" is defined as a set of electrical parameters that are individually adapted to a recipient's needs to achieve optimal sound perception. At present, most CI recipients are fitted with a default frequency allocation map that doesn't take individual variability in size and shape of the cochlea into account. In this study, a fitting strategy based on the post-operative CT scan, that will allow the audiologist to set a frequency-band distribution for CI fitting that may be more closely aligned to the natural tonotopic frequency distribution of a normal hearing cochlea, will be evaluated.
Cochlear fibrosis development can compromise the success and the outcomes of the cochlear implantation (CI) thus affecting the quality of life of the implanted patient. Correlating the results of the Transimpedance Matrix (TIM) measurements to the implant electrode location determined by the Cone Beam Computer Tomography (CBCT), this study aims to identify a range of TIM profiles within the implanted population, certain profiles suggesting the growth of the fibrosis tissue in cochlea
This research is being done to determine whether a test that measures a "Visual Evoked Potential" can be used in a new way for individuals that have hearing loss. This test measures the participant's brain's response (so called "brain waves") to specific visual images. This study will help the investigators determine whether this test could be used to improve treatments for patients with hearing loss. The "Visual Evoked Potential" measurement test is already used in the investigator's Neurology clinic at Dartmouth Hitchcock Medical Center for various conditions to measure "early" brain responses that occur in the first 1-2 seconds after a new cue. Our research aims to explore your brain's response just after that early 1-2 second period by looking at a specific response called the "P300". The P300 wave is a brain response to new or different images or sounds. A visual evoked P300 has not been studied in individuals with hearing loss. The investigators will compare the results of this test to standard auditory tests, tests of cognitive function, and cochlear implant patient outcomes to explore how these factors can predict successful use of a hearing aid or cochlear implant.
The purpose of the feasibility study is to investigate hearing performance (audiometry and speech perception) using the CI632 in a group of adults (n=15) with low-frequency residual hearing who meet inclusion criteria.