Results in negative pressure in the middle ear cleft.
Closely related to development of chronic otitis media.
Often accompanied by chronic inflammatory disease of the nasal cavity.
Diagnosis may be confirmed by tympanometry.
Treatment involves supportive care and nasal corticosteroids. Surgery is appropriate if the Eustachian tube is obstructed or in the case of trauma. Pressure equalization tubes are inserted if there are chronic otologic complications.
Eustachian tube dysfunction (ETD) is the inability of the Eustachian tube to properly regulate air pressure inside the middle ear and/or effectively drain secretions from the middle ear cleft. Occasionally, dysfunction may involve reflux of nasopharyngeal secretions in the middle ear. These malfunctions may be due to a variety of pathophysiologic changes that in some way impede the normal opening and closing of the Eustachian tube.
Department of Otorhinolaryngology
Ochsner Clinical School
University of Queensland School of Medicine
EDM is the author of references cited in this monograph.
Dr Edward D. McCoul would like to gratefully acknowledge Dr Erica R. Thaler, the previous contributor to this monograph. ERT declares that she has no competing interests.
Otolaryngology: Head and Neck Surgery
Northwestern University Feinberg School of Medicine
AGM declares that he has no competing interests.
Department of Otorhinolaryngology, Head & Neck Surgery
University Medical Centre
NVH declares that he has no competing interests.
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