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咽鼓管功能丧失是当前耳科一大难题,以软骨段病变多见,骨段纤维性或骨性闭锁较少,本文介绍中颅窝咽鼓管成形术,适用于后者。作者提出:咽鼓管成形术术前必须测定咽鼓管功能,比较实用的测定方法有三:(1)Miller氏法:把Foley氏管的一端接在气体转换器(transducer)上,另一端插入患者外耳道,转换器可将变动的气压转变为电脉冲并象心电图那样记下曲线。在鼓膜穿孔或已作鼓膜插管的情况下,外耳道加压充气后让患者作嚥水动作,咽鼓管通畅时外耳、中耳气体可自咽鼓管逸出,压力
Eustachian tube function loss is a major problem of otology, more common in cartilage lesions, bone fibrous or bony atresia less, this article describes the middle cranial fossa eustachian tube angioplasty, apply to the latter. The authors suggest that eustachian tube function must be determined before eustachian tube angioplasty. Three practical methods of measurement are as follows: (1) Miller's method: one end of the Foley's tube is connected to a gas transducer and the other end is inserted The patient's external auditory canal, the transducer can change the pressure into an electrical pulse and electrocardiogram that curve. In tympanic membrane perforation or tympanic membrane intubation has been made, the external auditory canal after the pressure and inflation for patients with pharyngeal motility, eustachian tube unobstructed external ear, middle ear gas can escape from the eustachian tube, pressure