Department of Ear Nose and Throat, Olabisi Onabanjo University Teaching Hospital, Sagamu, Nigeria.
Braz J Otorhinolaryngol. 2015 Mar-Apr;81(2):133-40. doi: 10.1016/j.bjorl.2014.09.007. Epub 2014 Oct 8.
Controversies arise with respect to functioning of the middle ear over time.
To assess changes in middle ear impedance that may be related to aging, and/or if there was an association of these changes with those of the inner ear in the elderly patients.
Cross-sectional, comparative study of elderly patients managed in ear, nose and throat clinics. A structured questionnaire was administered to obtain clinical information. Pure tone audiometry, tympanometry, and acoustic reflexes were performed. Comparative analyses were performed to detect intergroup differences between clinico-audiometric findings and middle ear measures, viz. tympanograms and acoustic reflexes.
One hundred and three elderly patients participated in the study; 52.4% were male, averagely 70.0±6.3 years old, age-related hearing loss in 59.2%, abnormal tympanograms in 39.3%, absent acoustic reflex in 37.9%. There was no association between age and gender in patients with abnormal tympanograms and absent acoustic reflex. Significantly more patients with different forms and grades of age-related hearing loss had abnormal tympanometry and absent acoustic reflex.
Some abnormalities were observed in the impedance audiometric measures of elderly patients, which were significantly associated with parameters connected to age-related hearing loss.
随着时间的推移，中耳的功能出现了争议。
评估可能与年龄相关的中耳阻抗变化，以及这些变化与老年患者内耳变化之间是否存在关联。
对耳鼻喉科诊所的老年患者进行横断面、对照研究。采用结构化问卷获取临床信息。进行纯音测听、鼓室图和声反射测试。对临床-听力学发现与中耳测量值（鼓室图和声反射）之间的组间差异进行比较分析。
共有 103 名老年患者参与了研究；男性占 52.4%，平均年龄 70.0±6.3 岁，59.2%为年龄相关性听力损失，39.3%为异常鼓室图，37.9%为声反射消失。在异常鼓室图和无声反射患者中，年龄与性别之间无相关性。不同类型和程度的年龄相关性听力损失患者的鼓室测听和声反射异常明显更多。
老年患者的阻抗测听测量值存在一些异常，这些异常与年龄相关性听力损失的参数显著相关。
