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This review confirms optimal stimulus and recording parameters for cervical vestibular evoked myogenic potentials (cVEMPs). Variations in these parameters significantly affect cVEMP response values, providing guidelines for interpretation.

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Area of Science:

  • Otolaryngology
  • Neuroscience
  • Audiology

Background:

  • Cervical vestibular evoked myogenic potentials (cVEMPs) are crucial for assessing vestibular and cochlear nerve function.
  • Standardization of stimulus and recording parameters is essential for reliable cVEMP interpretation.

Purpose of the Study:

  • To systematically review and meta-analyze factors influencing cVEMP response parameters.
  • To determine the effect of stimulus type, SCM muscle activation, transducer type, and EMG control on cVEMP values.
  • To establish normative response values for cVEMPs.

Main Methods:

  • Systematic electronic literature review of studies reporting normative cVEMP data.
  • Meta-analysis to identify significant effects on response parameters.
  • Calculation and comparison of weighted means to determine normative values.

Main Results:

  • Sixty-six reports were included in the systematic review.
  • Stimulus type, SCM muscle activation method, transducer type, and EMG control method significantly impacted all cVEMP response parameters.
  • Significant effects were identified on response parameters.

Conclusions:

  • The study confirms optimal stimulus and recording parameters for cVEMP testing.
  • Variations in stimulus and recording parameters influence cVEMP response values.
  • Suggested normative response values serve as a guideline for clinical interpretation.