Operating instructions

Interpreting Tympanogram Results
Appendix A
A-29
Otitis Media with Effusion
• Produces low static admittance
(low peak height) tympanogram
• Tympanogram is also typical of
tympanosclerosis, cholesteatoma,
and middle ear tumor
Normal Middle Ear
• Produces tympanogram within normal
limits relative to height and width
Tympanic Membrane Abnormalities or
Ossicular Disruption
• Produces high static admittance
(high peak height) tympanogram
Negative Middle Ear Pressure
• Produces negative Tympanometric
Peak Pressure (TPP) tympanogram
• Usually not associated with effusion
when Peak Ya is normal
• Also associated with eustachian tube
dysfunction, cold, or allergies
Oncoming or Resolving Otitis Media
with Effusion
• Produces normal peak height, but
tympanogram which is too wide
• Tympanogram is also typical of
tympanosclerosis