Abstract
A clinical test for evaluating Eustachian tube function and normal range of recordings obtained by this test were reported. Simultaneous registration of ear canal and pharyngeal pressures were made during Valsalva's maneuver and deglutition. One hundred recordings of normal subjects were classified into 3 types; normal 77%, obstructive 11% and patent 10%. Thus with the provision of information regarding the normal ear, evaluation of many different functional disorders of the tube is quite feasible.
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