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1 OTITIS MEDIA WITH EFFUSION ----(OME). 2 overview Otitis media with effusion (OME) is characterized by accumulation of fluid in the middle ear, conductive.

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Presentation on theme: "1 OTITIS MEDIA WITH EFFUSION ----(OME). 2 overview Otitis media with effusion (OME) is characterized by accumulation of fluid in the middle ear, conductive."— Presentation transcript:


2 2 overview Otitis media with effusion (OME) is characterized by accumulation of fluid in the middle ear, conductive hearing loss, and is a kind of non-purulent diseases of middle ear.

3 3 OME occurs as a result of decreased ventilation of the middle ear or mastoid air-cell system through the eustachian tube.

4 4 Serous Otitis Media Glue Ear Non-purulent Otitis Media OME is called other names:

5 5 OME is one of the most commonly resulting in deafness among children. OME occurs in adult too.

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8 8 Function of the eustachian tube The eustachian tube is essential in maintaining a healthy, well-aerated the middle ear.

9 9

10 10 The eustachian tube ventilates the middle ear, protects it from pathogenic organisms in the nasopharynx, equilibrates pressure across the tympanic membrane, and allows drainage of secretions from the middle ear into nasopharynx.

11 11 At rest, the eustachian tube is closed. During swallowing, yawning, or sneezing, the nasopharyngeal orifice of eustachian tube is opened transiently.

12 12 The anatomy of the eustachian tube of infants is different from adults. The infantile eustachian tube is more horizontal orientation, shorter length, and more patulous configuration than adult.

13 13 Pathogenesis Any process that interferes with normal opening of proximal ( nasopharyngeal ) end of the eustachian tube or mucociliary clearance mechanism causes OME

14 14 (1) mechanical obstruction: large or infected adenoids turbinate hypertrophy neoplasm of nasopharynx nasopharyngeal edema or inflammation

15 15 (2).Allergy Allergy reaction affects both mucociliary clearance mechanism and normal eustachian tube opening.

16 16 (3).Abnormal eustachian tube anatomy Such as: cleft palate deformities can impair eustachian tube function.

17 17 Functional disorders of eustachian tube negative pressure in tympanic cavity veins in mucous be dilated and be congested vessels permeance be increased serum in vessels be exuded into tympanic cavity middle ear effusion

18 18.Clinical Presentation Symptoms Conductive Hearing Loss, Earache, Ear fullness, Tinnitus.

19 19 Physical Examination Tympanic Membrane to be retracted, dull, opaque. color can range from : light pink to amber and even dark blue.

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23 23 Audiometric Testing reveals: Mild~middle levels of conductive hearing loss

24 24 Audiogram

25 25 Acoustic Immittance

26 26 Normal acoustic immittance is type_A curve. The curve has peak at O Pascal pressure point. OME s Acoustic immittance is type_B curve. It is flat tympanometric curve

27 27 Diagnosis ( ) History: Some patients suffered upper respiratory tract infection before 1 ~ 2 weeks, or suffered rhinitis, adenoids hypertrophy et. Perennial.

28 28 Clinical presentation : hearing impairment tinnitus ear obstruction Earache(ear pain)

29 29 ( ) Physical examination tympanic membrane be retracted tympanic cavity effusion

30 30 Audiometric Testing Mild ~ middle level conductive hearing loss Acoustic Immittance type_B curve

31 31 1 tympanosclerosis 2 glomus jugulare tumor 3 cerebrospinal otorrhea nasopharyngeal carcinoma Differential Diagnosis

32 32 Management Principles of Management Eliminate middle ear effusion, improve middle ear ventilation and drainage.

33 33 (1) Keep expedite nasal cavity and eustachain tube Child : 0.5%ephedrine and furacilline solution Adult : 1% ephedrine and furacilline solution

34 34 (2) Eustachian tube insufflation Valsalva method Politzer method Catheterization

35 35 ( 3) Puncture of Tympanum

36 36 ( 4) Tympanotomy

37 37 (5) Tympanostomy Tube

38 38 Management of etiology Treatment nasal and nasopharyngeal diseases Example: adenoid hypertrophy__ adenoidectomy radiation of nasopharyngeal carcinoma

39 39 Antibiotic treatment Penicillin Cephradine Treatment maintains 3~5 days by oral(mild) or by injection,IV(severe)

40 40 Steroid treatment Dexamethasone : Adult: 5~10mg/day, 3~5days,by injection,IV.

41 41 Prevention Exercise Prevent flu Treatment nasal and nasopharyngeal diseases

42 42 5.Questions 1.What is the otitis media with effusion (OME)? 2. What are the essential causes of OME? 3. Please represents main clinical presentations of OME..

43 43 Reference Book Otolaryngology Head & Neck Surgery Third Edition Charles W.Cummings,M.D Mosby-Year Book,Inc.

44 44

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