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Published:
Jan 8, 2018DOI:
10.4314/ahs.v17i4.34Keywords:
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Main Article Content
Sub-clinical middle ear malfunctions in elderly patients; prevalence, pattern and predictors
Abstract
Background: Little is known about functioning of the middle ear with advancing age.
Objectives: To estimate the prevalence and describe tympanometric patterns of sub-clinical middle ear malfunctions,( S-MEM) in elderly patients. It also assessed clinical factors that could predict S-MEM.
Methods: Cross-sectional, analytical study of patients aged ≥ 60 years in a tertiary hospital in Nigeria between 2011-2014. Pure tone audiometry (PTA), tympanometry and acoustic reflexes were recorded. S-MEM was based on audiometric and tympanometric evident abnormalities. Descriptive, univariate and multivariate analyses performed to detect independent clinical predictors of S-MEM at p-value of <0.05.
Results: 121 patients , M: F of 1.1:1. Mean age was 70.1 ± 6.2 years, 77.7% were married. Prevalence of S-MEM was 21.5%. Abnormal tympanometric tracings were type AS>C>B>AD. The parameters that were statistically-significant on univariate analyses were subjected to logistic regression analysis which confirmed previous head injury, diabetes, osteoarthritis of knee joint, and absent acoustic reflex as clinical predictors for S-MEM.
Conclusion: 21.5% of elderly Africans had subclinical abnormalities in their middle ear functioning, mostly with type AS tympanogram. Independent clinical predictors of S-MEM included previous head injury, diabetes, history of osteoarthritis of knee joints, and absent acoustic reflex.
Keywords: Middle ear malfunctions, elderly patients.
