View clinical trials related to Unilateral Deafness.
Filter by:The goal of this clinical trial is to investigate the safety and effectiveness of cochlear implantation in infants and toddlers with single-sided deafness. The main questions it aims to answer are: - Are cochlear implants an effective treatment of single-sided deafness in infants and toddlers? - Are cochlear implants a safe treatment for single-sided deafness in infants and toddlers? Participants will receive a cochlear implant and be followed until they are five years old. During those five years, the investigators will program the device and monitor auditory development. Children will be asked to: - Undergo cochlear implantation - Wear their cochlear implant processor whenever they are awake. - Participate in traditional hearing tests - Participate in traditional hearing testing - Participate in localization testing - Participate in hearing in noise testing - Participate in word recognition testing - Participate in speech, language, and educational evaluations The researchers will compare results to children with typical hearing in both ears and children with single-sided deafness who have not received an implant to observe any differences between the groups.
Single-sided deafness (SSD) refers to severe to profound sensorineural hearing loss on one side (average pure-tone hearing threshold≥70 dB HL at 0.5, 1, 2, and 4kHz) while the opposite side maintains normal hearing or mild hearing loss (30 dB HL). Asymmetrical hearing loss (AHL) refers to severe to profound sensorineural hearing loss in the bad ear (average pure-tone hearing threshold≥70 dB HL at 0.5, 1, 2, and 4kHz) and mild to moderate hearing loss in the contralateral ear. Moderate hearing loss (30≤mean pure-tone hearing threshold≤55dBHL). It is generally acknowledged that SSD is a particular clinical manifestation of AHL. The number of people who have hearing loss accounts for 5.3% of the total population, with children for 9%. According to the Second National Sampling Survey on Disabled Persons, China has 27.8 million people with hearing disabilities. The incidence of SSD adults in the United States is 7.2%, with 60,000 new cases per year, compared with 7,500 new patients with SSD annually in the UK. The incidence of SSD in neonates is 0.04%-0.34%, and it ranges from 0.1% to 0.5% in children and adolescents. The etiology of congenital SSD is primarily unknown, which is related to genes. Among the causes of acquired SSD, sudden deafness is the most common. Other causes include head trauma, Meniere's disease, labyrinthitis, unilateral acoustic neuroma, middle ear surgery, ototoxic drug exposure, Virus infection, noise-induced deafness, senile deafness, etc. SSD and AHL impede intellectual development and speech development in children and adolescents, which is associated with the side of hearing loss. For example, children with right-sided hearing loss have relatively poor language learning, logical thinking, and divergent thinking. In contrast, children with left-sided hearing loss have weaker analytical, comprehensive and visual memory abilities and relatively poor spatial imagination and visual-motor coordination. In addition, the lack of long-term monaural listening and sound source localization makes SSD children require excessive concentration, which is prone to fatigue and behavioral problems, and their academic performance is lower than that of normal children.
23 candidates for BiCROS hearing aids will be recruited and fitted with a hearing aid and a CROS device. Following a real-world trial, each participant will be tested on a range of outcome measures including speech recognition in noise, ratings of listening effort, and ratings of preference.
This is a two-phase study that compares performance growth pre-implant with current hearing aid (HA) technology versus post-implant with a cochlear implant (CI) in children with either asymmetric hearing loss (AHL) or single-sided deafness (SSD). Post-implant performance with a CI alone is expected to outperform pre-implant performance with a HA. The study also evaluates the effectiveness of bimodal hearing defined as a CI in the poor ear and a HA in the better ear for AHL or a CI in the poor ear and normal hearing in the better ear for SSD compared to pre-implant performance. The study examines factors contributing to CI outcomes.
The objective of the study is to compare the outcomes after a surgical procedure with minimally invasive Ponto surgery (MIPS, test group) and tissue preservation surgery (control) for placing Oticon Medical Ponto implants and abutments.
The objective of the study is to compare the outcomes after a surgical procedure with minimally invasive Ponto surgery (MIPS, test group) and tissue preservation surgery (control) for placing Oticon Medical Ponto implants and abutments.
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.
A bone-anchored hearing aid (Baha) consists of a titanium implant located at the mastoid, and a sound processor connected with the implant. The sound processor delivers bone conducted stimuli to the cochlea, bypassing the outer and middle ear. Some patients who are unable to wear or do not benefit from a conventional air-conduction hearing aid, are candidate for a Baha. Typically, these patients suffer from a conductive or a mixed hearing loss. Recently however, Baha's are also being recommended in patients with unilateral deafness. Sound coming from the deaf side is captured and transmitted through bone conduction to the normal inner ear. The overall benefit of a Baha is more difficult to assess in those patients. Therefore, the goal of the current study is to examine the benefit of a Baha in patients with different audiological profiles (unilateral or bilateral conductive or mixed hearing loss, and unilateral deafness). Special attention will be given to predictive determinants of the benefit with a Baha, and to the improvement of pre-operative criteria and counseling of patients.
Neck pain is a common complaint in the general population affecting 10-15% of the general population. females more than men. Known risk factors are: Trauma, Repetitive lifting of heavy objects at work, driving vibrating vehicles, frequents diving from boards and smoking. No study dealt with the possible role of unilateral loss of vision or hearing as a risk factor for the development of neck pain. Intuitively, one might suspect that unilateral blindness or deafness will lead to a tilted position of the head, in order to cover a better visual/audio field. This position, in time, might lead to the development of neck pain. Our hypothesis is that patients with unilateral blindness/deafness will suffer from neck pain more frequently than the general population.
The purpose of this 3-year prospective investigation is to examine the short-term and long-term (1 year)efficacy of the bone-anchored hearing aid (BAHA) in adults with single sided deafness