偏头痛性眩晕的视频头脉冲试验（vHIT）
Video head impulse test (vHIT) in migraine dizziness.
作者信息
ElSherif Mayada, Reda Mohamed Ihab, Saadallah Horeya, Mourad Mona
机构信息
Department of Otorhinolaryngology, Audio-vestibular Unit, Alexandria University, Egypt.
Department of Radio-diagnosis, Alexandria University, Egypt.
出版信息
J Otol. 2018 Jun;13(2):65-67. doi: 10.1016/j.joto.2017.12.002. Epub 2018 Feb 9.
BACKGROUND AND OBJECTIVE
Migraine is an extremely prevalent primary headache disorder that frequently associates parallel symptoms such as dizziness, tinnitus and hearing loss. Our aim is to investigate differences in video head impulse (vHIT) results with patients suffering from vestibular migraine (VM) and healthy people, taking into consideration mean values of vestibule ocular reflex (VOR) gain, occurrence of the compensatory saccades latency and amplitude. According to the results, determine the usefulness of vHIT in vestibular migraine diagnostics.
METHODS
A total number of 120 subjects were enrolled in the study, 80 of them were vestibular migraine patients (VM), while the other 40 were a control group of age matched healthy subjects. History was taking during the evaluation; videonystagmography and the video head impulse test were done.
RESULTS
The rate of saccades is much more higher in the VM group compared to the healthy subjects group, only 7.5% of the VM group showed a low VOR gain with compensatory saccades denoting a vestibular deficit.
CONCLUSION
The refixation saccades are an important sign that could underlie different vestibular problems. vHIT result can contribute to the completion of full mosaic of vestibular migraine diagnostics.
背景与目的
偏头痛是一种极为常见的原发性头痛疾病，常伴有头晕、耳鸣和听力损失等并发症状。我们的目的是研究前庭性偏头痛（VM）患者与健康人在视频头脉冲试验（vHIT）结果上的差异，同时考虑前庭眼反射（VOR）增益的平均值、代偿性扫视潜伏期和幅度的出现情况。根据研究结果，确定vHIT在前庭性偏头痛诊断中的效用。
方法
共有120名受试者参与本研究，其中80名为前庭性偏头痛患者（VM），另外40名是年龄匹配的健康受试者组成的对照组。评估过程中采集病史；进行了视频眼震图和视频头脉冲试验。
结果
与健康受试者组相比，VM组的扫视发生率要高得多，VM组中只有7.5%的患者VOR增益较低且伴有代偿性扫视，提示前庭功能缺陷。
结论
重新注视扫视是可能构成不同前庭问题基础的一个重要体征。vHIT结果有助于完善前庭性偏头痛诊断的全貌。
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