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ETD.
Last seen on: Vox Crossword Friday, February 3, 2023
Random information on the term “ETD”:
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Eustachian tube dysfunction (ETD) is a disorder where pressure abnormalities in the middle ear result in symptoms.
Symptoms include aural fullness, ears popping, a feeling of pressure in the affected ear(s), a feeling that the affected ear(s) is clogged, crackling, ear pain, tinnitus, autophony, and muffled hearing.
While Eustachian tube dysfunction can be hard to diagnose, due to the Eustachian tubes and the nasopharynx not being easily visible, usually a tympanometry is indicated, along with findings on an otoscopy. For cases of baro-challenge induced Eustachian tube dysfunction, diagnosis usually relies on the history of the patient and their reported symptoms, as otoscopy and tympanometry is sometimes normal at normal ambient pressure. Opening pressure has been proposed as a method for preoperative and intraoperative evaluation of any obstructive process within the Eustachian tube. As well, Valasalva CT scanning using advanced 64 slice or higher machines has been proposed as a way of diagnosing and localizing anatomic obstruction within the Eustachian tube.