中耳炎是累及中耳(包括咽鼓管、鼓室、鼓窦和乳突气房)部分或全部结构的炎性病变。急性耳炎常分为卡他性与化脓性,两者在发病机理上稍有不同,但其病变过程与临床表现往往关系极为密切,也可相互交错,其变化受中耳解剖结构、感染途径与类型、机体对感染及药物治疗的反应等条件的影响。 (一)急性卡他性中耳炎常继发于鼻咽部的急性炎症或咽鼓管阻塞,其经过较为缓和,常不引起注意。较大儿童可诉说听力减退、耳痛、耳闭塞或胀满感,有时耳鸣、自听增强等。 Otitis media is an inflammatory disease involving part or all of the structure of the middle ear, including the eustachian tube, tympanic cavity, mastoid sinus, and mastoid atrium. Acute otitis is often divided into catarrhal and purulent, both in the pathogenesis is slightly different, but the process of the disease and clinical manifestations are often very closely related, but also can be staggered with each other, and its changes by the middle ear anatomy, the route of infection And the type, the body’s response to infection and drug treatment and other conditions. (A) acute catarrhal otitis media often secondary to nasopharyngeal acute inflammation or eustachian tube obstruction, its after a more moderate, often do not pay attention. Larger children may complain of hearing loss, earache, ear occlusion or fullness, sometimes tinnitus, self-listening enhancement.