Eustachian Tube Dysfunction

Epidemiology

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Etiology

  • Extrinsic Eustachian Tube Compression: due to nasopharyngeal tumor or enlarged adenoid
  • Mucosal Disease: due to inflammatory etiology, immunologic impairment, or immotile cilia
  • Seasonal Allergic Rhinitis
  • Upper Respiratory Tract Infection

Physiology

  • Eustachian Tube Dysfunction: most important etiologic factor which contributes to the development of acute otitis media
    • Although descent of the soft palate muscle sling relative to the eustachian tube orifice during adolescence improves eustachian tube patency (and decreases the incidence of acute otitis media with age), poor tubal function may persist into adulthood
    • Persistent eustachian tube dysfunction results in a relative negative pressure in the middle ear space: consequently, lack of aeration and accumulation of middle ear effusion increase the risk of acute otitis media and otitis media with effusion

Diagnosis

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Clinical Manifestations

Otolaryngologic Manifestations


Treatment

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References

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