Department of Child Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Department of Neuropsychiatry, Sakura Hospital, Aomori, Japan.
Department of Neuropsychiatry, Sakura Hospital, Aomori, Japan.
Prog Neuropsychopharmacol Biol Psychiatry. 2021 Jun 8;108:110092. doi: 10.1016/j.pnpbp.2020.110092. Epub 2020 Sep 3.
Motor tics are sudden, rapid, recurrent, non-rhythmic movements. There is a lack of quantitative assessment methods for the motor tics despite severe neck complications. We aimed to provide an improved quantitative method for neck tic assessment in motor tic disorders. We recorded neck motor tics in patients with motor tic disorders and voluntary neck movements in healthy controls. The maximum peak angular velocities and angular accelerations were calculated. Motor tics were assessed in three orthogonal planes (yaw, pitch, and roll) separately, and compared between the patients with motor tic disorders and controls. Correlations between the maximum angular velocities/accelerations and tic counts were also assessed. In the pitch plane, motor tics of the patients showed higher angular velocities/accelerations than voluntary movements of the controls. Angular acceleration in the yaw, and roll planes showed positive correlations with tic count. Some of the observed tics were comparable to the movements experienced in contact sports. Our findings may aid in the identification of populations at a high risk for severe neck complications among motor tic disorder patients.
运动性抽动是突然的、快速的、反复的、无节律的运动。尽管颈部并发症严重，但目前缺乏针对运动性抽动的定量评估方法。我们旨在为运动性抽动障碍的颈部抽动评估提供一种改进的定量方法。我们记录了运动性抽动障碍患者的颈部运动性抽动和健康对照组的自愿性颈部运动。计算了最大峰值角速度和角加速度。分别在三个正交平面（偏航、俯仰和滚动）上评估运动性抽动，并比较了运动性抽动障碍患者和对照组之间的差异。还评估了最大角速度/加速度与抽动次数之间的相关性。在俯仰平面上，患者的运动性抽动表现出比对照组的自愿运动更高的角速度/加速度。偏航和滚动平面的角加速度与抽动计数呈正相关。一些观察到的抽动与接触性运动中经历的运动类似。我们的研究结果可能有助于识别运动性抽动障碍患者中颈部严重并发症风险较高的人群。
