1 research outputs found
Vestibular evoked myogenic and auditory brainstem evoked potentials in a female migraine population
Background and purpose – The purpose
of the present study was to evaluate ocular
vestibular evoked myogenic potential
(oVEMP), cervical vestibular evoked myogenic
potential (cVEMP), and brainstem auditory
evoked potential (BAEP) response charac
teristics and to understand the pathophy
siology of vestibular dysfunction in female
migraineurs with vertigo symptoms. We also
aimed to assess the electrophysiological
diagnostic significance of the VEMP respon
ses in vestibular migraine (VM).
Methods – 23 patients with migraine with
out aura (MoA), 23 patients with VM, and
20 sex and age matched healthy controls, a
total of 66 female participants were enrolled
in this study. The outcome parameters
were asymmetry ratios (ARs), amplitudes
of oVEMP, cVEMP, N1P1, P13N23, and the
respective latencies (mean ± SD). From the
BAEP graphs, absolute and interpeak interval
latencies of waves were analyzed.
Results – 30.4% of the MoA group and
21.7% of the VM group had uni or bilater
ally absent cVEMP responses which were
statistically significant only in the MoA group
(p=0.035) in comparison to control group.
Both groups displayed statistically insignifi
cant absent or asymmetrical responses for
oVEMP (13.1%). Cervical VEMP P13 and N23
latency, peak to peak amplitude, interaural
latencies, and amplitude ARs did not show
any significant difference between MoA
and VM patients and healthy controls. No
significant difference was detected among
the three groups in the oVEMP and BAEP
parameters.
Conclusion – Although absent cVEMP
responses were more common in MoA and
VM patients than in healthy individuals, the
VEMP and BAEP test results should not be
used in the differential diagnosis of VM and
MoA