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EUSTACHIAN TUBE AND ITS
DISORDER
Dr. Uzwal kumar jha
 Downward, forward and
medially
 45 degree
 Parts
 Bony(12mm)
 fibrocartilagenous(24mm)
 Tympanic end
 Pharyngeal end
 Slit-like
 Vertical
 Torus tubaris
 1-1.25cm
Tensor veli palatini
Levator veli palatini
salpingopharyngeus
Elastin hinge
Ostmann’s pad of fat
Lining of eustachian tube
 Pseudostratified ciliated columnar epithelium
Nerve supply
 Tympanic branch of 9th nerve
 Muscles
 Tensor veli palatini-mandibular nerve
 Levator veli palatini, salphingophyaryngeus-pharyngeal
plexus
FUNCTIONS
 Ventilation and regulation of middle ear pressure
 Middle ear clearance of secretion
 Protection against reflux of nasopharyngeal
secretion
ETIOLOGY OF ET DYSFUNCTION
 URTI
 Chronic rhinosinusitis
 Allergic rhinitis
 Adenoid hypertrophy
 Tobacco smoke
 Reflux
 Cleft palate-79%
 Radiation
 Down’s syndrome
DISORDER OF ET
EVALUATION OF ET
Symptoms
 Aural fullness
 Pain or discomfort
 Hearing loss
 Tinnitus
 Dizziness
Signs
 Retracted tympanic
membrane
 Features of OME
TESTS
 Valsalva test
 Politzer test
 Toynbee test
 Catheterisation
 Tympanometry
 Radiological test
 Saccharine or methylene blue test
 Sonotubometry
M/M
No clear consesus on oral/topical medications
 Correction of predisposing factors
 Topical Dexamethasone
 Pressure equalization tubes
 Adenoidectomy-controversy
PATULOUS ET
Etiology
 Idiopathic
 Rapid wt loss
 Pregnacny
 OC pills
 Malignancy
 Multiple sclerosis
Sign and symptom
 Autophony
 Movement of TM on
respiration
 Self limiting
 Laser Eustachian tuboplasty - obliteration of ET
 grommet
THANK YOU

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Eustachian tube and its disorder

  • 1. EUSTACHIAN TUBE AND ITS DISORDER Dr. Uzwal kumar jha
  • 2.  Downward, forward and medially  45 degree  Parts  Bony(12mm)  fibrocartilagenous(24mm)
  • 3.  Tympanic end  Pharyngeal end  Slit-like  Vertical  Torus tubaris  1-1.25cm
  • 4. Tensor veli palatini Levator veli palatini salpingopharyngeus Elastin hinge Ostmann’s pad of fat
  • 5. Lining of eustachian tube  Pseudostratified ciliated columnar epithelium Nerve supply  Tympanic branch of 9th nerve  Muscles  Tensor veli palatini-mandibular nerve  Levator veli palatini, salphingophyaryngeus-pharyngeal plexus
  • 6.
  • 7. FUNCTIONS  Ventilation and regulation of middle ear pressure  Middle ear clearance of secretion  Protection against reflux of nasopharyngeal secretion
  • 8. ETIOLOGY OF ET DYSFUNCTION  URTI  Chronic rhinosinusitis  Allergic rhinitis  Adenoid hypertrophy  Tobacco smoke  Reflux  Cleft palate-79%  Radiation  Down’s syndrome
  • 10. EVALUATION OF ET Symptoms  Aural fullness  Pain or discomfort  Hearing loss  Tinnitus  Dizziness Signs  Retracted tympanic membrane  Features of OME
  • 11. TESTS  Valsalva test  Politzer test  Toynbee test  Catheterisation  Tympanometry  Radiological test  Saccharine or methylene blue test  Sonotubometry
  • 12.
  • 13. M/M No clear consesus on oral/topical medications  Correction of predisposing factors  Topical Dexamethasone  Pressure equalization tubes  Adenoidectomy-controversy
  • 14. PATULOUS ET Etiology  Idiopathic  Rapid wt loss  Pregnacny  OC pills  Malignancy  Multiple sclerosis Sign and symptom  Autophony  Movement of TM on respiration
  • 15.  Self limiting  Laser Eustachian tuboplasty - obliteration of ET  grommet