Giebink G S, Heller K A, Le C T
Laryngoscope. 1983 Feb;93(2):208-11. doi: 10.1288/00005537-198302000-00017.
Non-invasive methods for distinguishing different types of otitis media would have clinical value in predicting otologic morbidity. Two such methods, otoscopy and tympanometry, were used in two experimental models of otitis media to determine whether there are unique otoscopic and tympanometric characteristics of serous and purulent otitis media. A flat (type B or B+) tympanogram and yellow tympanic membrane each had a high likelihood of predicting middle ear effusion in these models, and the best prediction was obtained using both parameters simultaneously. A yellow tympanic membrane color predicted purulent otitis media in one model but did not distinguish purulent from serous ears in the other model. In one model, serous otitis media was frequently associated with a type C (negative pressure) tympanogram. Tympanometry provided a valuable adjunct to otoscopy in detecting effusion and in distinguishing serous and purulent disease. These observations may apply to otitis media in humans, although the variable etiologies of otitis media in humans may confound the ability of otoscopy and tympanometry to distinguish middle ear effusion types.
区分不同类型中耳炎的非侵入性方法对于预测耳科疾病具有临床价值。在两种中耳炎实验模型中使用了耳镜检查和鼓室导抗图这两种方法，以确定浆液性中耳炎和化脓性中耳炎是否具有独特的耳镜和鼓室导抗图特征。在这些模型中，平坦型（B型或B+型）鼓室导抗图和黄色鼓膜各自都有很高的预测中耳积液的可能性，同时使用这两个参数可获得最佳预测效果。黄色鼓膜颜色在一个模型中可预测化脓性中耳炎，但在另一个模型中无法区分化脓性和浆液性中耳。在一个模型中，浆液性中耳炎常与C型（负压）鼓室导抗图相关。鼓室导抗图在检测积液以及区分浆液性和化脓性疾病方面为耳镜检查提供了有价值的辅助。这些观察结果可能适用于人类中耳炎，尽管人类中耳炎病因多样，可能会混淆耳镜检查和鼓室导抗图区分中耳积液类型的能力。
