High frequency tympanometry findings in neonates: does it depend on head position?
Related Experiment Video
Updated: May 22, 2026

State of the Art Cranial Ultrasound Imaging in Neonates
Published on: February 2, 2015
Joseph Kei1, Rafidah Mazlan, Se Chall Kim
1Hearing Research Unit for Children, School of Health and Rehabilitation Sciences, The University of Queensland, St. Lucia, Australia. k.kei@uq.edu.au
Objective:
The purpose of this study was to investigate the effect of head positions on high frequency tympanometry (HFT) results obtained from neonates.
Design:
A cross-sectional study to compare HFT results obtained from neonates in two head positions (face sideways and face up).
Study Sample:
One hundred and fifty-seven neonates (80 female, 77 male; mean age = 48.3 ± 26.7 hours) participated.
Results:
The mean uncompensated admittance at 200 daPa obtained in the face sideways position was significantly greater than that obtained in the face up position (1.02 versus 0.96 mmho). A significant ear effect for baseline compensated admittance was found (right/left = 0.64/0.53 mmho). However, there were no significant main effects for head positions for the tympanometric peak pressure, baseline compensated static admittance, and component compensated static admittance measures, indicating that these measures are resilient to head positions.
Conclusion:
These findings support the use of HFT normative values regardless of the two head positions investigated in the present study.
More Related Videos
14:05Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
06:29Electrophysiological Measurement of Noxious-evoked Brain Activity in Neonates Using a Flat-tip Probe Coupled to Electroencephalography
Published on: November 29, 2017
Related Concept Videos
Perceiving Loudness, Pitch, and Location
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...
Temperature Measurement Sites
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
The Cochlea
Assessing Body Temperature - Tympanic membrane
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...