Exploration of High Frequency Otoacoustic Emissions and Developmental Language Disorders
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Language Development Disorders
- Sponsor
- University Hospital, Clermont-Ferrand
- Enrollment
- 138
- Locations
- 1
- Primary Endpoint
- HF DPOAE measurement
- Status
- Not yet recruiting
- Last Updated
- 3 years ago
Overview
Brief Summary
Among the objective non-invasive audiological explorations the distorsion products of otoacoustic emissions (DPOAE) allow to quickly assess the function of the cochlear outer hair cells (without the active participation of the subject). This technique is used in newborn screening. While humans are able to perceive sounds in a frequency range of 20Hz to 20kHz, routine clinical audiological assessment is only concerned with frequencies between 1-4kHz.
This obscures the importance of high frequencies (HF) which can be easily assessed by DPOAEs. In young children, the perception of these high frequencies could also play an important role in language acquisition.
The main objective of this study is to evaluate the relationship between subtle high-frequency hearing impairment, as assessed by the DPOAE (non-invasive, rapid and simple audiological test), and language delay or difficulties in a pre-, peri- and school-age pediatric population.
Investigators
Eligibility Criteria
Inclusion Criteria
- Not provided
Exclusion Criteria
- •Hearing disorder identified during the inclusion visit (presence of cerumen or foreign body in the earwax plug or foreign body in the external auditory canal, tympanometry suggesting a middle ear disorder, audiometry with thresholds outside the normal thresholds outside the normal range (0-20dB HL), absence of responses in (0-20dB HL), absence of responses in acoustic otoemissions or acoustic distortion products) on conversational frequencies between 500Hz and 4kHz.
- •Declaration by the parents of an ENT follow-up for a hearing disorder and/or a speech therapy for a language disorder
- •Refusal of participation evoked by the subject
Outcomes
Primary Outcomes
HF DPOAE measurement
Time Frame: Day 1
at frequencies 4265, 4688, 5154, 5666, 6229, 6847, 7527, 8275, 9096 and 10000 Hz
Secondary Outcomes
- Presence or absence of HF DPOAE(Day 1)
- Laterality of hearing loss at the DPOAE level with a classification into 3 groups(Day 1)
- Determination of the average hearing loss (baseline pure tone audiometry)(Day 1)
- Severity and type of language impairment assessed by the EVALO/ EVALEO(day 1)
- Functional status of the middle ear(Day 1)