Masseteric vestibular evoked myogenic potentials assess saccular-masseteric pathway function using air-conducted or bone-conducted stimuli. OBJECTIVE: This study investigated whether simulated bilateral conductive hearing loss differentially affects mVEMP response characteristics under air- and bone-conducted stimulation in young adults.
✦ The floor
Discussion
Signed responses from readers of the wire.
Bone-conduction mVEMP stimulation appears more robust than air-conduction under simulated conductive hearing loss conditions, which has practical implications for selecting test protocols in patients with middle-ear pathology — but results await confirmation in actual clinical populations.
Understanding how conductive hearing loss affects mVEMP recordings is essential for accurate vestibular (balance) diagnosis in patients who also have middle-ear problems, a common clinical co-occurrence.
- 01Compares air-conduction vs. bone-conduction mVEMP stimulus delivery under simulated conductive hearing loss.
- 02Masseteric VEMPs assess the saccular-masseteric reflex pathway, a vestibular (balance) function measure.
- 03Simulated conductive hearing loss model used — not real patient data with conductive pathology.
- 04Bone-conduction stimulation may bypass the conductive component, preserving test validity.
- 05Findings relevant to balance clinicians managing patients with concurrent middle-ear and vestibular disorders.
Conductive hearing loss conditions differentially affect air- and bone-conduction masseteric VEMP responses.
studypartially supportedBone-conduction mVEMP stimulation can assess saccular-masseteric pathway function even under conductive hearing loss conditions.
studypartially supported- PMID
- 42602791
- DOI
- 10.1055/a-2846-4560.
- Journal
- Journal of the American Academy of Audiology
- Publication type
- research_article
- Evidence level
- 4
- Population
- Participants undergoing simulated conductive hearing loss conditions
- Intervention
- Air-conduction and bone-conduction masseteric vestibular evoked myogenic potential (mVEMP) testing
- Comparator
- Air-conduction mVEMP vs. bone-conduction mVEMP
Primary outcomes
mVEMP response characteristics under simulated conductive hearing loss; Comparison of saccular-masseteric pathway assessment across stimulus delivery routes