Vestibular Evoked Myogenic Potentials in Vestibular Migraine: Do They Help Differentiating From Menieres Disease?

Objective:

To investigate whether both cervical and ocular vestibular myogenic potentials (cVEMPs and oVEMPs) to air-conducted sound (ACS) and bone-conducted vibration (BCV) can help to differentiate vestibular migraine (VM) and Menière's disease (MD).

Study Design:

Retrospective study.

Settings:

A tertiary referral center.

Subjects and Methods:

Twenty-eight patients with VM, 28 patients with definite unilateral MD, and 28 age-matched controls were included. Cervical VEMPs to 500 Hz ACS (cVEMPs-air) and 500 Hz BCV (cVEMPs-bone), oVEMPs to 500 Hz ACS (oVEMPs-air) and 500 Hz BCV (oVEMPs-bone), and caloric tests were performed. Results of these vestibular function tests were compared between the groups.

Results:

The prevalence of abnormality was significantly higher in VM than in controls only for the caloric test (P < .05). Asymmetry ratios (ARs) for cVEMPs-air and oVEMPs-air were significantly larger in VM than in controls (P < .05). Between VM and MD, the prevalence of abnormality was significantly different only for oVEMPs-air. The ARs for oVEMPs-air and caloric test asymmetries were significantly smaller in VM than in MD (P < .05).

Conclusions:

Among the vestibular function tests, oVEMPs-air may be most helpful for the differentiation of VM from MD as a group.

from #ORL via xlomafota13 on Inoreader http://ift.tt/2c8GKQA
via IFTTT