鼓室负压状态是因咽鼓管堵塞致鼓室内空气逐渐被吸收得不到相应补充而形成,临床表现为耳呜、耳闷、听力障碍和鼓膜内陷,亦属渗出性中耳炎的早期表现。认为是由于上呼吸道炎症或物理因素造成咽鼓管口肿胀或阻塞而引起,诊治上,鼓膜穿刺常用于确定有无中耳腔积液,也作为抽吸中耳腔积液的手段。有 Tympanic negative pressure is due to blockage of the eustachian tube drum interior air gradually absorbed by the lack of appropriate supplements and the formation of clinical manifestations of atrial fibrillation, ear boredom, hearing impairment and tympanic membrane retraction, also exudative otitis media early manifestations . That is due to upper respiratory tract inflammation or physical factors caused by eustachian tube swelling or obstruction caused by the diagnosis and treatment, tympanic membrane puncture commonly used to determine the presence or absence of middle ear effusion, but also as a means of suctioning the middle ear effusion. Have