High frequency tympanometry findings in neonates: does it depend on head position?

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.