Tympanometry in acute otitis media: prognostic implications
R. M. Lampe, M. R. Weir, H. McLeod, K. Aspinall and L. Artalejo
Impedance tympanometry was performed on children with acute otitis media.
Most acute tympanograms were classified as either type B (no peak pressure)
or positive-pressure tympanograms. A striking difference in outcome was
noted between these two groups: the patients with positive-pressure
tympanograms were more likely to have normal results with examination at
the two-week follow-up than were those with type B tympanograms. There was
no difference in outcome between antihistamine-decongestant and placebo
regimens evaluated concurrently.
