Auditory tube function in divers by auditory tube sonometry during valsalva maneuver.

概要

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Auditory tube function during Valsalva's maneuver was compared in professional divers and normal adults.The opening pressure of the auditory tube during Valsalva's maneuver was defined as the internal pressure of the nasal cavity. It was found that a higher pressure was required to open the auditory tube of professional divers than of normal adults. Comparison of the findings in different age groups also revealed that the mean pressure was higher for professional divers. It was speculated that this higher mean pressure might have resulted from the effect of training for the ventilation of the auditory tube with the assistance of pressure in a hyperbaric environment. It has been reported that auditory tube function changes from the infantile to the adult type with growth, and changes due to aging were also observed in the auditory tube function of adults. The pressure required to open the auditory tube by Valsalva's maneuver increased with age, suggesting that the function may be depressed slowly up to the 40's to the 50's. This finding is of interest because these ages coincide with the increasing incidence of auditory tube stenosis and exudative otitis media in the elderly.
耳鼻咽喉科臨床学会の論文