Eustachian Tubal Function in Normal and Diseased Ears

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Abstract
Introduction Additional information concerning the function of the eustachian tube of normal and pathological ears is needed in modern otology. Poor eustachian tubal function has been implicated in the etiology of chronic diseases of the middle ear, and reconstructive surgical procedures of the middle ear require an adequately functioning eustachian tube. Previous studies of eustachian tubal function have mainly employed the technique of politzeration, which is somewhat insensitive and difficult to quantitate. The present project was undertaken to devise a method of accurately measuring the functional capacity of the eustachian tube under closely simulated physiological conditions. Such a method would be a useful addition to the present methods of evaluating eustachian tubal function. The present report describes the technique developed and analyzes normal tubal function and tubal function in ears with chronic suppurative otitis media. Methods and Materials Technique of Eustachian Tubal Testing.—The normal eustachian tube is closed at

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