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[Alzheimer's disease and hearing loss]
Carlos Gimeno-Vilar1, Francisco J Cervera-Paz
1Clinica Universitaria de Navarra, 31008 Pamplona, Espana.
Revista De Neurologia
|January 30, 2010
Summary
This study investigated the link between Alzheimer's disease (AD) and hearing loss. Patients with AD showed greater hearing loss in acute frequencies compared to controls, suggesting a potential auditory pattern associated with the disease.
Area of Science:
- Neuroscience
- Audiology
- Gerontology
Context:
- The relationship between Alzheimer's disease (AD) and peripheral hearing loss remains unclear despite various studies.
- Investigating auditory function in AD patients is crucial for understanding disease-related changes.
Purpose:
- To conduct an auditory study in patients with probable AD and healthy volunteers to explore the potential link between AD and peripheral hearing loss.
- To compare hearing abilities between AD patients and age- and sex-matched controls using subjective and objective audiological assessments.
Summary:
- Pure-tone threshold audiometry revealed statistically significant greater hearing loss for acute frequencies in AD patients compared to controls.
- No significant differences were observed in other subjective (vocal audiometry) and objective (tympanometry, stapedial reflex, otoacoustic emissions, brainstem auditory evoked potentials) hearing tests.
- Recruitment of participants was challenging due to lack of direct benefit and time commitment.
Impact:
- Findings suggest that Alzheimer's disease patients may exhibit a distinct auditory pattern, specifically in high-frequency hearing.
- This research contributes to the ongoing debate on the association between cognitive decline and sensory impairments.
- Further research is warranted to elucidate the specific auditory profile in AD and its potential diagnostic or prognostic value.
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