Abstract
172 tympanograms were recorded in sound-conductive loss to assess their value in the diagnosis of secretory otitis media, and in the suggestion of the resolving stage of effusion in the middle ear.
The tympanograms were found in 4.1% of type I, 5.1% type III, 49.5% type IV, 61.0% type V, 25.4% type VI, 61.2% type VII, and 62.8% type VI, as based on the tympanogram classification by Yokoyama et al.
Type I (A) and III (As) tympanograms having simultaneously the middle ear pressure from -80 to -100 mmH2O and the lowering of the peak were considered to be indicative of secretory otitis media.
Type VI and VII tympanograms, which did not correspond to and of JERGER'S classification and the others, have been frequently found clinically among patients with flaccid tympanic membrane, and the resolving stage of middle ear effusion.
