Senior Scholars Program


Cervical vestibular evoked myogenic potentials (cVEMPs) in patients with superior canal dehiscence syndrome (SCDS)

UMMS Affiliation

Department of Otolaryngology

Publication Date


Document Type



Acoustic Stimulation; Adult; Area Under Curve; Bone Conduction; Electromyography; Evoked Potentials, Auditory; Female; Humans; Male; Muscle Contraction; Neck Muscles; ROC Curve; Reflex, Vestibulo-Ocular; Retrospective Studies; Semicircular Canals; Statistics, Nonparametric; Syndrome; Vestibular Diseases; Vestibular Function Tests


Life Sciences | Medicine and Health Sciences


OBJECTIVE: To determine the usefulness of both amplitude and threshold data from tone-burst cervical vestibular evoked myogenic potential (cVEMP) testing for the evaluation of superior canal dehiscence syndrome (SCDS).

STUDY DESIGN: Case series with chart review.

SUBJECTS AND METHODS: Sixty-seven patients underwent cVEMP testing. We correlated mean tone burst cVEMP amplitude and threshold data with temporal bone CT findings. Patients were excluded for Meniere's disease, middle ear disease, or otologic surgery.

RESULTS: Superior canal dehiscence patients had higher mean cVEMP amplitudes (SCDS 173.8 microV vs non-SCDS 69.7 microV, P=0.031) and lower mean thresholds (SCDS 72.8 dB nHL vs non-SCDS 80.9 dB nHL) at 500 Hz.

CONCLUSION: Patients with SCDS have larger amplitudes and lower thresholds on cVEMP testing at 500 Hz. This study supports the utility of tone burst cVEMPs for the evaluation of SCDS and is one of few large single-center studies to establish normative data.

DOI of Published Version



Otolaryngol Head Neck Surg. 2009 Jul;141(1):24-8. Link to article on publisher's site

Journal/Book/Conference Title

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery


Medical student Robert Eppsteiner participated in this study as part of the Senior Scholars research program.

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Link to Article in PubMed

PubMed ID