Short-term impact of preschool sound exposure on outer hair cell function in young children: An analysis using pressurised distortion product otoacoustic emissions.

ABSTRACT:

Background

Preschool children are regularly exposed to high noise levels that may affect hearing. A previous study has linked preschool noise exposure to reduced distortion product otoacoustic emission (DPOAE) amplitudes. Since DPOAEs primarily reflect outer hair cell (OHC) activity, they provide an indirect marker of cochlear function. Measurement accuracy can be affected by middle-ear pressure. Pressurised DPOAEs (pDPOAEs) compensate for middle-ear pressure during recording.

Methods

This cross-sectional study aimed to examine the relationship between preschool noise exposure and pDPOAE amplitudes while accounting for middle-ear pressure. Seventy-five children (4-6 years old) were monitored using dosimeters to measure the equivalent continuous sound level (LAeqTi) and the 9

SUBMITTER: Sandstrom L 

PROVIDER: S-EPMC12637916 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature