渗出性中耳炎英文课件
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will be ignored
Fullness Tinnitus
Diagnosis
The diagnosis is made at physical exam.
TM may retracted, dull, and opaque.
The color of TM may range from light pink to amber even dark blue.
Nasopharyngeal exam: to exclude spaceoccupation lesion
Differentiated diagnosis
Nasopharyngeal carcinoma:
Unilateral OME Nasoendoscope CT or MRI Biopsy
Pathogenesis
Dysfunction of Eustachian tube
Obstruction of Eustachian tube
Mechanic obstruction
enlarged adenoid, tumor, enlarged inferior turbinate
Non mechanic obstruction
Background
65-95% of children by the age of 7 years will experience one or more episodes of otitis media.
It remains the commonest cause for visit to the doctor in the pediatric population.
S pneumonia, haemophalus influenzae, haemolytic streptocuccus
Immunity
Middle ear is a isolated immune system Inflammatory mediators Specific antibody, immunologic complex Antigen may from adenoid or nasopharygeal
Otitis media with effusion
Definition
OME：Accumulation of fluid in the middle ear without signs or symptoms of acute infection.
Other names: Secretory otitis media, glue ear, nonpurulent otitis media.
Diagnosis
Hearing test
Rinne test: negative Audiogram: conductive hearing loss, no more than
40 dB Tympanogram: B type or C type
Lateral nasopharyngeal radiograph: hypertrophy of adenoid
The presence of air bubble or air fluid level makes the diagnosis more evident.
Diagnosis
Tympanometry
Middle ear pressure more negative than -200 (type C) or a flat tympanometry curve (type B) is classified as a failure.
Diagnosis
It is usually asymptomatic. Leabharlann BaiduHearing loss
Kid can not concentrate himself Turn on TV in loudness If one ear is normal, the above symptoms
CSF (cerebrospinal fluid) leakage
lymph
Classification of Otitis media
Otitis meda with effusion: the presence of middle ear effusion. If the middle ear effusion is present for 3 months or longer, it is classified chronic otitis media with effusion
A child fail test without marked HL (less than 20 dB) should be retest 2 months later.
While occlusion of the probe by cerumen or the child’s crying can cause invalid results.
Background
Myringotomy was performed in eighteenth and nineteenth centuries to treat otitis media.
In 1954, Armstrong’s reintroduction of the tympanostomy tube, after that, few true advances in the treatment of otitis media was developed.
Weakness of related muscle (Cleft palate)
Infection or inflammation in nose or sinuses
Pathogenesis
Infection
PCR detects the middle ear fluid, positive findings was 70%
Fullness Tinnitus
Diagnosis
The diagnosis is made at physical exam.
TM may retracted, dull, and opaque.
The color of TM may range from light pink to amber even dark blue.
Nasopharyngeal exam: to exclude spaceoccupation lesion
Differentiated diagnosis
Nasopharyngeal carcinoma:
Unilateral OME Nasoendoscope CT or MRI Biopsy
Pathogenesis
Dysfunction of Eustachian tube
Obstruction of Eustachian tube
Mechanic obstruction
enlarged adenoid, tumor, enlarged inferior turbinate
Non mechanic obstruction
Background
65-95% of children by the age of 7 years will experience one or more episodes of otitis media.
It remains the commonest cause for visit to the doctor in the pediatric population.
S pneumonia, haemophalus influenzae, haemolytic streptocuccus
Immunity
Middle ear is a isolated immune system Inflammatory mediators Specific antibody, immunologic complex Antigen may from adenoid or nasopharygeal
Otitis media with effusion
Definition
OME：Accumulation of fluid in the middle ear without signs or symptoms of acute infection.
Other names: Secretory otitis media, glue ear, nonpurulent otitis media.
Diagnosis
Hearing test
Rinne test: negative Audiogram: conductive hearing loss, no more than
40 dB Tympanogram: B type or C type
Lateral nasopharyngeal radiograph: hypertrophy of adenoid
The presence of air bubble or air fluid level makes the diagnosis more evident.
Diagnosis
Tympanometry
Middle ear pressure more negative than -200 (type C) or a flat tympanometry curve (type B) is classified as a failure.
Diagnosis
It is usually asymptomatic. Leabharlann BaiduHearing loss
Kid can not concentrate himself Turn on TV in loudness If one ear is normal, the above symptoms
CSF (cerebrospinal fluid) leakage
lymph
Classification of Otitis media
Otitis meda with effusion: the presence of middle ear effusion. If the middle ear effusion is present for 3 months or longer, it is classified chronic otitis media with effusion
A child fail test without marked HL (less than 20 dB) should be retest 2 months later.
While occlusion of the probe by cerumen or the child’s crying can cause invalid results.
Background
Myringotomy was performed in eighteenth and nineteenth centuries to treat otitis media.
In 1954, Armstrong’s reintroduction of the tympanostomy tube, after that, few true advances in the treatment of otitis media was developed.
Weakness of related muscle (Cleft palate)
Infection or inflammation in nose or sinuses
Pathogenesis
Infection
PCR detects the middle ear fluid, positive findings was 70%