-
Vestibular Dysfunctions in Vestibular Migraine Evaluated by Rotatory
Chair Test
-
Ji Yun Park, Byeong Cheo Oh, Tae Kyeong Lee, Ki Bum Sung
-
Res Vestib Sci. 2015;14(4):123-131.
-
-
-
 Abstract
 PDF
- Objective: There have been several efforts to elucidate the pathophysiology of the
vestibular migraine (VM). But, there is no consistent result. This study was to identify
the possible pathophysiology of VM by comparing vestibulo-ocular reflex (VOR) parameters
between VM, and the tension type headache (TTH) patients. In addition, we
compared VOR parameters between ictal and interictal period in the VM group.
Methods
Seventy eight patients were included: 44 having VM and 34 TTH. Three
parameters (gain, asymmetry, and phase) of the horizontal VOR rotating at 60 degrees
were measured. In 10 VM patients VOR parameters were obtained twice sequentially
first in the ictal and second in the interictal period.
Results
Although the average of the VOR gain in VM group was lower than that
of TTH group but there was no statistical significance. An asymmetry of the VOR
was significantly higher in VM group. There were various changes in other VOR
parameters between ictal and interictal periods with no consistent trends.
Conclusion
We could deduce that VM patients might have subclinical vestibular
dysfunction from the reduced gain and increased asymmetry of the VOR in the interictal
period. Dynamic changes of the VOR in the ictal period could be responsible for
dizziness in VM patients, which are caused by the pathological alteration of the
physiologic plasticity of the VOR.
|
KBS
