Medial Olivocochlear Modulation in Children With Cleft Lip and Palate: Evidence From Contralateral Suppression of TEOAEs

To investigate the potential impact of a history of cleft lip and/or palate (CL/P) on medial olivocochlear (MOC) efferent system modulation in children.DesignCross-sectional study.SettingUniversity-affiliated audiology research laboratory under controlled acoustic conditions.ParticipantsFifty-two children aged 9 to 15 years with typical hearing participated, including 26 children with surgically repaired,...

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✦ The floor

Discussion

Signed responses from readers of the wire.

✦ Clinical Takeaway ✦

Children with a history of cleft lip and/or palate show measurable differences in medial olivocochlear efferent function; audiologists managing this population should consider including TEOAE contralateral suppression testing as part of comprehensive audiological assessment.

✦ Why It Matters ✦

Understanding efferent auditory system differences in cleft lip and palate populations may explain listening difficulties beyond standard audiogram results and help tailor audiological management in this at-risk group.

✦ Key Points ✦

01Study investigated the medial olivocochlear (MOC) efferent system in children with cleft lip and/or palate history.
02Contralateral suppression of TEOAEs (transient evoked otoacoustic emissions) was used as the measurement tool.
03The MOC system plays a role in speech-in-noise processing and inner ear protection.
04Cleft lip/palate children may have altered efferent auditory function beyond conductive hearing issues.
05Published in The Cleft Palate-Craniofacial Journal (doi: 10.1177/10556656261446655).

✦ Claims & Evidence ✦

ClaimEvidenceSupport

Children with a history of cleft lip and/or palate show differences in medial olivocochlear efferent modulation compared to controls.

studypartially supported

Contralateral suppression of TEOAEs is a valid measure of medial olivocochlear function in this population.

studysupported

✦ Research metadata ✦

PMID: 42080961
DOI: 10.1177/10556656261446655.
Journal: The Cleft Palate-Craniofacial Journal
Publication type: research_article
Evidence level: 3
Population: Children with a history of cleft lip and/or palate
Intervention: Contralateral suppression of transient evoked otoacoustic emissions (TEOAEs)
Comparator: Typically developing children without cleft lip/palate

Primary outcomes

Medial olivocochlear efferent modulation as measured by TEOAE contralateral suppression

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