Sogebi Olusola Ayodele, Adedeji Taiwo Olugbemiga, Ogunbanwo Olatundun, Oyewole Emmanuel Abayomi
Department of Surgery, OACHS, Olabisi Onabanjo University, Sagamu, Nigeria.
Department of Otorhinolaryngology, Head and Neck Surgery LAUTECH Teaching Hospital, Osogbo, Nigeria.
Afr Health Sci. 2017 Dec;17(4):1229-1236. doi: 10.4314/ahs.v17i4.34.
Little is known about functioning of the middle ear with advancing age.
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.
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.
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 A>C>B>A. 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.
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.
关于中耳功能随年龄增长的变化知之甚少。
评估老年患者亚临床中耳功能障碍（S-MEM）的患病率并描述其鼓室图模式。同时评估可预测S-MEM的临床因素。
对2011年至2014年尼日利亚一家三级医院中年龄≥60岁的患者进行横断面分析研究。记录纯音听力测定（PTA）、鼓室图和听觉反射。S-MEM基于听力测定和鼓室图明显异常。进行描述性、单变量和多变量分析以检测p值<0.05时S-MEM的独立临床预测因素。
121例患者，男女比例为1.1:1。平均年龄为70.1±6.2岁，77.7%已婚。S-MEM的患病率为21.5%。异常鼓室图类型为A>C>B>A。单变量分析中有统计学意义的参数进行逻辑回归分析，结果证实既往头部损伤、糖尿病、膝关节骨关节炎和听觉反射缺失是S-MEM的临床预测因素。
21.5%的非洲老年人中耳功能存在亚临床异常，主要为A型鼓室图。S-MEM的独立临床预测因素包括既往头部损伤、糖尿病、膝关节骨关节炎病史和听觉反射缺失。
