topic of the lecture: chronic purulent inflammation of the ...€¦ · theories of cholesteatoma...
TRANSCRIPT
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Topic of the lecture:
chronic purulent
inflammation of the middle
ear. Sanating ear surgeries.
Tympanoplasty.
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Significance
Causes hearing loss. In 18% of patients
with hearing impairment, the pathology
is a consequence of chronic purulent
otitis media.
Possible intracranial complications,
labyrinthitis, facial nerve paresis.
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Specific features of otomycosis
Fungi are usually conditional pathogenic .
Otomycosis – paradiabetic disease.
Repress bacterial flora in superinfections. Only antifungal therapy must be provided.
Have tendency to relapse. Treatment course must be repeated.
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Essential symptoms:
Purulent effusion from the ear.
Permanent perforation of the ear
drum.
Hearing loss, noise in the affected
ear.
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Forms of the disease
Mesotympanitis.
Epitympanitis.
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Mesotympanitis
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Mesotympanitis
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Audiogram conductive type of hearing loss
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Epitympanitis
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Epitympanitis
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Theories of cholesteatoma
formation
Metaplastic.
Ingrowth of epidermis.
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Mechanism of bone destruction
by cholesteatoma
Pressure.
Excretion of bone destructing
fements (causing bone lysis).
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X-ray of mastoid process
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X-ray of mastoid process
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Audiogram
Mixed type of hearing loss
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Audiogram
Perceptive type of hearing loss
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Treatment plan:
І. Examination : x-ray of the mastoid bone , audiometry, consulting neurologist and ophthalmologist .
ІІ. Common treatment.
ІІІ. Sanation of the nose and nasopharynx.
ІV. Local sanating treatment:
1st stage – mechanical evacuation of pus from
the ear;
2nd stage – infusion of medications into tympanic cavity.
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Washing epitympanic recess
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Indications for radical
operation
1. Caries of middle ear cavity walls.
2. Cholesteatoma.
3. Chronic mastoiditis.
4. Paresis of facial nerve.
6. Otogenic intracranial complications –
absolute indication.
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Radical surgery
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5 types of tympanoplasty by Wulstein
Myringoplasty.
Large tympanic cavity.
Small tympanic cavity - columella.
Reduced tympanic cavity
Fenestration of horizontal semicircular canal.
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І type of tympanoplasty
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ІІ type of tympanoplasty
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ІІІ type of tympanoplasty
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ІV type of tympanoplasty
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V type of tympanoplasty
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Transplants
Dura mater.
Buccal mucous membrane.
Skin.
Cornea .
Fascia.
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Contraindications for
tympanoplasty
Obturation of auditory tube.
Significant disfunction of
soundperceptive apparatus.
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