Cervical and ocular vestibular-evoked myogenic potentials induced by bone conduction in the pediatric group:

Deniz Uğur Cengi̇z1, Sanem Can Sarioğlu1, Buşra Mazooğlu2

  • 1Department of Audiology, Faculty of Health Sciences, Inonu University, Malatya, Türkiye.

Insights

Vestibular-Evoked Myogenic Potential (VEMP) tests using bone conduction are reliable for pediatric vestibular assessment. This study established normative values and confirmed test-retest reliability for cervical and ocular VEMP in children.

Area of Science:

  • Audiology
  • Neuroscience
  • Pediatrics

Background:

  • Vestibular-Evoked Myogenic Potential (VEMP) testing is crucial for assessing vestibular function.
  • Bone conduction stimuli are preferred for pediatric VEMP due to frequent conductive pathologies.
  • Establishing normative data is essential for accurate interpretation in pediatric populations.

Purpose of the Study:

  • To establish normative values for pediatric VEMP using bone-conduction stimuli at various frequencies (250 Hz, 500 Hz, 750 Hz).
  • To evaluate the test-retest reliability of these VEMP measures in healthy children.
  • To provide reliable diagnostic tools for pediatric vestibular disorders.

Main Methods:

  • A descriptive study involving 37 healthy children aged 8-18 years.
  • Cervical and ocular VEMP tests were performed using bone-conduction stimuli (250 Hz, 500 Hz, 750 Hz).
  • Test-retest reliability was assessed by two clinicians one week apart, analyzing latencies, amplitudes, and asymmetry values using parametric tests and ICC.

Main Results:

  • Intraclass correlation coefficient (ICC) values indicated good to excellent reliability for both cervical and ocular VEMP across tested frequencies.
  • ICC values for cervical VEMP ranged from 0.50 to 0.87.
  • ICC values for ocular VEMP ranged from 0.60 to 0.84, demonstrating consistent results.

Conclusions:

  • Cervical and ocular VEMP tests utilizing bone-conduction stimuli demonstrate significant reliability in pediatric populations.
  • These findings support the use of bone-conduction VEMP as a dependable method for evaluating pediatric vestibular system integrity.
  • The established normative values and reliability data aid in diagnosing vestibular impairments in children.
Abstract

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