View clinical trials related to Deafness.
Filter by:To date, all the electrophysiological methods for auditory testing rely on the measure on synchronous evoked auditory nerve activity. This measure only takes into account the response of the first action potential in every auditory fibber, but provides no information about the neural response during a sustained activity. This can explain why in experimental models, a loss of more of 80% of auditory nerve fibbers cannot be detected by usual electrophysiological measurements. In this study we aim at investigating the global spontaneous and sound evoked auditory nerve activity by recording directly the electrical field by an electrode placed directly on the auditory nerve of subjects during a skull base surgical procedure. We expected to demonstrated differences in the electrical activity between subjects with or without hearing loss.
The purpose of this research study is to learn about the hearing outcomes of adult and pediatric patients who are treated with or are candidates for bone conductive devices (also termed "BAHA"). Hearing outcomes will also be assessed with a second audio processor device called the Adhear System.
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.
In this study the investigators will examine the effects of core stabilization exercises on respiratory muscle strength, respiratory functions and postural control in hearing-impaired children.
Despite being more likely than typical hearing children to experience disruptive behavior problems, children who are deaf and hard of hearing (DHH) rarely receive behavioral interventions to prevent the long-term costly outcomes of behavior problems. This pilot project will systematically adapt an evidence-based behavioral parent training (BPT) intervention to increase its acceptability and relevance for parents of young DHH children. Two parents of DHH children will be trained in the adapted BPT for DHH children. They will each deliver the intervention to five families with DHH preschool-aged children.
Age-related hearing loss is highly prevalent and hearing health care is underutilized. The primary objective of the proposed randomized controlled trial is to investigate the efficacy of a community health worker (CHW)-delivered hearing loss intervention program. A preceding pilot study demonstrated preliminary effectiveness of the intervention program in reducing self-reported hearing handicap, and highlighted its acceptability among the target demographic. The proposed trial will now expand upon lessons learned through previous pilot studies and expand to other affordable residences for low-to-moderate income older adults in Baltimore. Primary outcome measurements will investigate intervention effects on hearing handicap, with secondary measurements investigating effects on domains such as social isolation and quality of life. This trial is a first-in-kind investigation of a novel community-based intervention that addresses hearing loss in a vulnerable, urban population.
The purpose of this project is to validate a quick, easy-to-use and administer smartphone hearing-in-noise test. The Hearing-in-Noise Test (HINT) measures an individual's ability to hear speech in quiet and in noise. HINTs are traditionally done testing both ears together as binaural hearing ability is key in noisy settings and everyday, functional hearing. The app (called HearMe) can potentially be used to easily and quickly collect hearing-in-noise and speech-in-noise measurements. The smartphone app developed is a hearing-in-noise test that presents the subject with a series of stimuli consisting of a spoken three-digit sequence presented at a varying hearing-to-noise ratio. For each stimulus presentation, the user tap the three-digit sequence. The duration of the app is less than 3 minutes. For this project the investigators will test at least 50 subjects with hearing loss and 50 control subjects between the ages of 18-80. The subjects will be invited to take the app. The approach for this pilot study is to characterize hearing-in-noise thresholds (also referred to as a speech-reception threshold) as measured by the app in both subject groups, and relate it to the phenotype of each group as a preliminary evaluation of the app as well as a preliminary validation against their routinely collected measurements of hearing function (pure-tone audiometry thresholds). The study will assess the validity of the test construct in measuring hearing-in-noise thresholds, and serve as a foundation for further iterative designs of the app and future validation and characterization studies. This study seeks to validate a developed smartphone HINT on an initial cohort of patients and controls. It is anticipated that patients with hearing loss will display higher signal-to-noise ratio thresholds (as measured by the iPhone app) compared to controls.
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.