Hearing loss in a memory disorders clinic. A specially vulnerable population

Area of Science:

• Gerontology
• Neurology
• Audiology

Background:

• Memory disorders, such as Alzheimer disease, are increasingly prevalent in aging populations.
• Hearing impairment is common in older adults but its prevalence in those with memory disorders is less understood.
• Cognitive decline can impact self-reporting of sensory deficits.

Purpose of the Study:

• To determine the prevalence and characteristics of hearing loss in patients evaluated for memory disorders.
• To assess the adequacy of current hearing screening tools for this population.
• To investigate the reliability of self-reported hearing problems in patients with Alzheimer disease.

Main Methods:

• A case-control study involving 52 patients with cognitive impairment.
• Patients were divided into probable Alzheimer disease (n=30) and other cognitive impairment (n=22) groups.
• Hearing screening included case history, otoscopy, pure tone audiometry, and a hearing impairment questionnaire for patients and caregivers.

Main Results:

• A high prevalence of significant hearing loss (49/52 patients) was observed, exceeding that in healthy aged controls.
• No significant difference in hearing loss rates was found between Alzheimer disease patients and those with other cognitive impairments.
• Patients with Alzheimer disease showed a discrepancy between self-reports and caregiver reports of hearing problems, unlike other cognitive impairment patients.

Conclusions:

• The high prevalence of hearing loss in patients with memory disorders underscores the need for audiological evaluation.
• Hearing assessments should be integrated into the comprehensive evaluation of cognitive function.
• Caregiver input is crucial for accurately assessing hearing status in Alzheimer disease patients.