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Please access Videos to view the corresponding videos for this chapter. A patulous or abnormally patent (“stuck open”) eustachian tube (ET) causes an amplified perception of one’s own voice and breathing (termed autophony of voice and breathing) that can range…
Key Points The eustachian tube contains a valve and serves three primary functions: (1) ventilating and equalizing pressure in the middle ear space, (2) draining secretions from the middle ear cavity by mucociliary clearance, and (3) protecting the middle ear…