The clinical utility of vestibular autorotation test in patients with vestibular migraine.

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The clinical utility of vestibular autorotation test in patients with vestibular migraine.

Acta Otolaryngol. 2017 May 25;:1-5

Authors: Thungavelu Y, Wang W, Lin P, Chen T, Xu K

Abstract
OBJECTIVE: To investigate the characteristics and clinical utility of vestibular autorotation test (VAT) in patients with vestibular migraine.
METHODS: This study included two groups, an experimental group (441 patients) and a control group (65 healthy subjects). Both groups undertook VAT; the parameters evaluated were horizontal gain/phase, vertical gain/phase and asymmetry. The differences in VAT results between the two groups were investigated.
RESULTS: There were no statistical differences between the VAT data of the control group when compared to the reference value from the manufacturer (p > .05). There were statistically significant differences in VAT results between the experimental and control group, namely elevated horizontal gain at frequency 2, 3, 4 and 5 Hz, horizontal phase delay at frequency 2, 4, 5 and 6 Hz, elevated vertical gain at frequency 2 6Hz and vertical phase delay at frequency 4 6Hz.
CONCLUSION: The results of this study using VAT in VM patients demonstrate elevated horizontal gain, vertical gain and delay in horizontal phase, vertical phase. We suggest the application of VAT as a diagnostic tool which may provide objective evidence that can contribute to the diagnosis of VM and also in differential diagnosis.

PMID: 28541766 [PubMed - as supplied by publisher]

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