Importance: The prevalence of hyperacusis and its relationship with mental and general health is unknown in a nonclinical sample. Therefore, we aimed to determine the prevalence of hyperacusis and its relation with hearing, general and mental health in a population‐based study.Study Design: Prospective population‐based study.Material and Methods: This study uses data from the Busselton Healthy Ageing Study (BHAS). A sample of 5,107 eligible inhabitants aged 45 to 70 years completed a detailed questionnaire and a clinical assessment. A positive answer to “Do you consider yourself sensitive or intolerant to everyday sounds” was used to indicate hyperacusis. Logistic regression was used to examine the association between hearing, mental and general health factors, and hyperacusis.Results: Of 5,107 participants, 775 (15.2%) reported hyperacusis. The majority of participants with hyperacusis reported an occasional effect on daily life (72.0%). Being female, older in age, having a lower income, physical or mental health difficulties, more severe hearing loss, and tinnitus were all associated with the presence of hyperacusis. Individuals who experience hearing impairment, poorer general or mental health have a higher possibility of hyperacusis having an effect on their daily life.Conclusions: In this community population‐based cohort study, we found a prevalence of hyperacusis of 15.2%. Individuals with hearing loss, mental health problems, and lower physical health have a higher possibility of experiencing effects on their daily life associated with their hyperacusis. Unravelling the relationship between hyperacusis hearing, general and mental health can be of major importance for a better understanding of the condition and its consequences.Level of Evidence: 2 Laryngoscope, 131:E2887–E2896, 2021
Up to 1.5 billion people worldwide suffer from various forms of hearing loss, with an additional 1.1 billion people at risk from various insults such as increased consumption of recreational noise-emitting devices and ageing. The most common type of hearing impairment is sensorineural hearing loss caused by the degeneration or malfunction of cochlear hair cells or spiral ganglion nerves in the inner ear. There is currently no cure for hearing loss. However, emerging frontier technologies such as gene, drug or cell-based therapies offer hope for an effective cure. In this review, we discuss the current therapeutic progress for the treatment of hearing loss. We describe and evaluate the major therapeutic approaches being applied to hearing loss and summarize the key trials and studies.
1 June 2013 in Journal of the American Academy of Audiology
Background:The baby boomer population will become high users of the health-care system in coming years. Self-report of hearing loss at a primary health-care visit may offer timely referrals to audiological services, but there has been no population-based study of self-reported hearing loss in the baby boomer generation.Purpose:To determine the clinical value and audiometric correspondence of self-reported hearing loss as a screening tool for the baby boomer population.Research Design:A population-based study, Busselton Healthy Ageing Study (BHAS), surveying baby boomers born between 1946 and 1964 from the shire of Busselton, Western Australia.Study Sample:A randomized sample of noninstitutionalized baby-boomers listed on the electoral roll (n = 6690) and resident in the shire are eligible to participate. This study reports on data from the first 1004 attendees (53.5% female) with a mean age of 56.23 (SD = 5.43).Data Collection and Analysis:Data from a self-report question on hearing loss and diagnostic pure tone audiometry was utilized for this study. Analysis included screening performance measures of self-report compared to audiometric cut-offs, receiver operator curve (ROC) to determine optimal level, analysis of variance to compare hearing status to self-report, and binary logistic regression to determine best audiometric predictors.Results:Of the sample, 16% self-reported hearing loss (72.1% males). Logistic regression indicated 4000 Hz as the most important individual frequency related to self-report while the four-frequency average (500, 1000, 2000, and 4000 Hz) >25 dB in the worse ear was the most significant averaged cutoff with 68% sensitivity and 87% specificity. Of those who self-reported a hearing loss, 80% had either a four-frequency average hearing loss >25 dB in the worse ear or a high-frequency average (4000 and 8000 Hz) hearing loss greater than 35 dB in the worse ear.Conclusions:Baby boomer adults who self-report hearing impairment on direct inquiry are most likely to have a hearing loss. A simple question at a primary health care visit may facilitate a timely referral for audiological services in a baby boomer adult, who may be more amenable to rehabilitation.
Conclusion: Bone conduction implants are useful in patients with conductive and mixed hearing loss for whom conventional surgery or hearing aids are no longer an option. They may also be used in patients affected by single-sided deafness. Objectives: To establish a consensus on the quality standards required for centers willing to create a bone conduction implant program. Method: To ensure a consistently high level of service and to provide patients with the best possible solution the members of the HEARRING network have established a set of quality standards for bone conduction implants. These standards constitute a realistic minimum attainable by all implant clinics and should be employed alongside current best practice guidelines. Results: Fifteen items are thoroughly analyzed. They include team structure, accommodation and clinical facilities, selection criteria, evaluation process, complete preoperative and surgical information, postoperative fitting and assessment, follow-up, device failure, clinical management, transfer of care and patient complaints.
12 September 2018 in American Journal of Audiology
Purpose: Although hearing health care clinicians provide training on hearing aid handling and management as part of the rehabilitation program, clinical studies suggest that the level of management skill demonstrated by hearing aid owners is low. In the absence of a comprehensive clinical survey to identify these shortfalls in clinical training, the objective of this study was to develop and report the psychometric properties of the Hearing Aid Skills and Knowledge Inventory (HASKI: a self-administered version and a clinician-administered version). The HASKI evaluates the knowledge and skills required for hearing aid management. A secondary aim was to report the prevalence of hearing aid management difficulties in an Australian population. Method: The development of the HASKI and the investigation of its psychometric properties in a prospective convenience cohort of 518 adult hearing aid owners, ranging in age from 18 to 97 years ( M = 71 years, SD = 14), 60% male, 38% female, and 2% undisclosed, recruited from 7 hearing clinics across Australia, were used. Results: The HASKI (both the self-administered and clinician administered) demonstrated high internal consistency, interdimensional relationships, construct validity, test–retest reliability, interobserver reliability, and criterion validity. A range of aptitudes were observed from low to full competency, with 99% of participants indicating difficulty with at least 1 item on the survey. Conclusions: The Hearing Aid Skills and Knowledge Inventories are valid and reliable measures of hearing aid handling and management skills with good potential for use in clinical settings. Hearing aid management is an area of difficulty for the majority of hearing aid owners, indicating the need for clinicians to improve the efficacy of hearing aid management training delivered.
1 October 2021 in Drug Design, Development and Therapy
Introduction: In a recent study, in our laboratory, primary unconjugated bile acids, commonly found in humans, chenodeoxycholic acid (CDCA), have been shown to improve stability of nanoencapsulated lipophilic drugs and improve their release profile after oral administration likely via electrokinetic stabilisation. Hence, this study aimed to examine the effects of CDCA on exerting similar effects on hydrophilic drugs. Methods: Various CDCA-based formulations were produced for the orally administered hydrophilic drug, metformin. Analyses of these formulations included electrokinetic potentials, topography, drug and CDCA formulation contents, nano size distribution, heat-induced deformation and outer-core expansion indices, release profiles, shell-resistance ratio, and thermal and chemical indices. With the drug’s main target being pancreatic beta-cells, the formulations’ effects on cell viability, functions and inflammatory profiles were also investigated. Results and Conclusions: CDCA-based metformin formulations exhibited improved stability and release profiles via thermal, chemical and electrokinetic effects, which were formulation-dependent suggesting potential applications of CDCA in the oral targeted delivery of hydrophilic drugs.