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本文介绍通过X线咽鼓管造影观察咽鼓管之保护、引流及通气功能。一、咽鼓管之保护功能:观察对象是78名正在患渗出性中耳炎或数周内曾患渗出性中耳炎之儿童,共156耳,鼻咽部滴人造影剂后X线摄片观察。结果:156耳中只有5耳具有正常逆行功能(normal retrograde function),异常者表现为以下四种类型:1.鼻咽部造影剂在正常压力及加压情况下均不能进入咽鼓管63耳(40%);2.鼻咽部加压后咽鼓管出现异常扩张41耳(26%);3.咽鼓管阻塞与异常扩张混合型41耳(26％);4.鼻咽部在低压状态时造影剂能
This article describes the eustachian tube by X-ray contrast eustachian tube protection, drainage and ventilation functions. First, the eustachian tube protection: The observation object is suffering from exudative otitis media in 78 or suffering from exudative otitis media within a few weeks, a total of 156 ears, nasopharyngeal drops of contrast agent after radiography . Results: Only 5 ears of 156 ears had normal retrograde function, and the abnormalities showed the following four types: 1. Nasopharyngeal contrast agent could not enter the eustachian tube under the normal pressure and pressure conditions (40%); 2 nasopharyngeal pressure after eustachian tube abnormal expansion of 41 ears (26%); 3 Eustachian tube obstruction and abnormal expansion mixed 41 ears (26%); 4 nasopharynx Contrast agent can be used under low pressure