急性化脓性中耳炎ASOM.ppt
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1、ACUTE SUPPURATIVE OTITIS MEDIA (ASOM),Acute suppurative otitis media results from bacterial infection of the middle ear cleft, often as a bacterial complication of the common cold. This is more frequent in children than in adults.,Etiology #The common infective organisms are beta hemolytic streptoco
2、ccus, pneumo-coccus, Hemophilus influenzae, and staphylococcus. #Eustachian tubes: viral upper respiratory infection, enlarged adenoids, sinus infections, allergy-causing edema in the eustachian tube region, and cleft palate.,#Other cause: traumatic rupture , perforation of the tympanic membrane , f
3、rom infection following ear surgery. #ASOM is a self-limiting disease, and when treated adequately it rarely leaves any residual change.,Clinical Features Symptoms. Fever, malaise Otalgia Decrease in hearing Discharge from the ear canal: muco-purulent or purulent . ( perforation of the tympanic memb
4、rane).,On Examination In the early stage, the tympanic membrane will show retraction and lack of mobility. Next with the onset of edema and exudation the drum will lose its landmarks, appear thick and dull, and may have a fluid level. The fluid is thick and not clear, as in the case of serous otitis
5、 media.,Tympanic membrane outward and cause bulging of the drum. If untreated the tympanic membrane will rupture, giving rise to a serosanguinous and then mucopurulent or purulent discharge from the ear. Perforation occurs in tympanic membrane central.,Tympanic membrane before perforation with ASOM,
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- 急性 化脓 中耳炎 ASOM
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