Objective: We sought to assess the feasibility of cervical vestibular evoked myogenic potential (cVEMP) as a diagnostic tool for
patients experiencing dizziness after mild traumatic brain injury (mTBI) in tertiary neurotology clinic. We used cVEMP to estimate
the prevalence of saccular dysfunction after mTBI.
Design: This was a cross-sectional study of patients referred to a tertiary neurotology clinic for dizziness after mTBI. These patients
were given a standard neurotology clinical examination and vestibular assessment in addition to a cVEMP test.
Results: 20 of 63 (31.7%) patients had an abnormal cVEMP response. 75% of these subjects showed no deficiency by clinical exam
or VNG and 50% registered a deficiency by pure tone audiometry (PTA).
Conclusions: We found that abnormal cVEMP responses were common in dizzy patients post-mTBI and many had normal results
in standard neurotological/vestibular tests. cVEMP may help identify those with vestibular dysfunction associated with saccular
injury after mTBI.