High-frequency impedance audiometry
Booking an appointment: Required
Referral: Strictly required from an ENT specialist, audiologist, pediatrician, neonatologist, family doctor.
Age range: The study is intended for newborns and infants from 0 to 2 years old.
Waiting time for results: Results available immediately after the test.
Price-list
Preparation
Newborns and infants:
- The examination is best performed during physiological sleep (this shortens the examination time), but it is not necessary.
Description of the study
The test assesses the compliance of the eardrum (i.e., how responsive it is to pressure changes) and determines the pressure in the middle ear. During the test, a probe is inserted into the ear, simultaneously emitting a pure tone at a frequency of 1000 Hz. The probe also contains a microphone that records the varying pressure applied from the probe (measured from -300 to +200 daPa) at which the eardrum reflects as little sound as possible and transmits it further into the middle ear. The test allows for the assessment of pressure (peak of the tympanometric curve) in the middle ear, which should normally range from -100 to +100 daPa.
The result of the test (measurement) is a graph of the compliance (impedance) of the eardrum.
The result of the test (measurement) is a graph of the compliance (impedance) of the eardrum.
Indications
- suspicion of fluid in the middle ear,.
- perforation of the eardrum,
- foreign body in the external auditory canal,
- obstruction of the Eustachian tube,
- concave eardrum,
- barotrauma,
- other pathology in the middle and outer ear.
