Methodologic Observations on Tympanometry with Regard to the Probe Tone Frequency

摘要: Changes in the tympanogram shape frequency range from 200 to 2 000 Hz have been investigated. The undergoes, as probe tone rises, characteristic morphologic modifications which are consistently observed both normals and some middle ear disorders. only exception this regular behavior is pathological picture structure or dynamic of tympano-ossicular system remarkably anomalous (cholesteatoma otitis media) where there flat tympanograms. It suggested that interval at one tympanometric configurations appears element capable furnishing a diagnostic tool for differentiating pathophysiologic conditions ear.