To evaluate the effectiveness of an individually modified chirp stimulus adjusted using real-ear to coupler difference (RECD) values in improving the accuracy of auditory brainstem response (ABR) threshold estimation and wave V parameters in children.
If real-ear-adjusted chirp stimuli demonstrably improve ABR threshold accuracy in children, audiologists performing pediatric ABR testing should consider incorporating RECD-adjusted chirp protocols into their workflow.
Improving the accuracy of ABR threshold estimation in children directly impacts early identification and fitting decisions for pediatric hearing loss, a high-stakes clinical population.
- 01Study tested real-ear to coupler difference (RECD)-adjusted chirp stimuli against standard chirps in pediatric ABR.
- 02RECD adjustment individualizes the acoustic stimulus to each child's ear canal size.
- 03Outcomes assessed included ABR threshold estimation accuracy and wave V characteristics.
- 04Findings could have direct implications for pediatric audiological assessment protocols.
Real-ear adjusted chirp stimuli improve ABR threshold estimation accuracy compared to unadjusted chirp stimuli in children.
studypartially supportedRECD-adjusted chirp stimuli affect wave V parameters in pediatric ABR testing.
studyunclear- PMID
- 42176350
- DOI
- 10.1080/14992027.2026.2671882.
- Journal
- International Journal of Audiology
- Publication type
- research_article
- Evidence level
- 2b
- Population
- Children undergoing auditory brainstem response (ABR) threshold testing
- Intervention
- Real-ear to coupler difference (RECD)-adjusted chirp stimuli for ABR testing
- Comparator
- Standard (unadjusted) chirp stimuli
Primary outcomes
ABR threshold estimation accuracy; Wave V amplitude and latency parameters