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

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 param...

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Published in:Acta Oto-Laryngologica Vol. 137; no. 10; pp. 1046 - 1051
Main Authors: Thungavelu, Yogun, Wang, Wei, Lin, Peng, Chen, Taisheng, Xu, Kaixu
Format: research tables/charts Journal Article
Published: Taylor & Francis Ltd Oct2017
Online Access:View this record in EBSCOhost
Summary: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.
目的：探讨前庭偏头痛患者前庭自发性试验（VAT）的特征和临床应用价值。 方法：本研究包括两组, 实验组（441例）和对照组（65例健康受试者）。两组都进行了VAT试验; 评估的参数是水平增值/相位、垂直增值/相位和不对称性。对两组VAT结果之间的差异进行了调查。 结果：与制造商的参考值相比, 对照组的VAT数据没有统计学差异（p>.05）。实验组和对照组之间的VAT结果差异具有统计学意义, 即在频率2、3、4和5 Hz时的水平增益升高, 频率为2、4、5和6 Hz的水平相位延迟, 频率2、 6Hz时垂直增益升高, 频率4、 6Hz时垂直相位延迟。 结论：将VAT用于VM患者的研究结果表明水平增益和垂直增益的提高, 以及水平相位、垂直相位的延迟。我们建议应用VAT作为诊断工具, 可以提供有助于VM诊断和辨异诊断的客观证据。