Sotiriou Kostas, Artemiadis Artemios K, Papanastasiou Ioannis
Department of Neurology, 417 Army Share Fund Hospital, Athens, Greece.
Department of Neurology, 417 Army Share Fund Hospital, Athens, Greece.
J Stroke Cerebrovasc Dis. 2015 Mar;24(3):e67-8. doi: 10.1016/j.jstrokecerebrovasdis.2014.10.003. Epub 2015 Jan 1.
Ping-pong gaze (PPG) is a rare eye movement abnormality consisting of conjugate smooth rhythmical horizontal eye deviations between the 2 extreme positions. PPG is encountered in cases of severe bilateral hemispheric or posterior fossa brain damage with intact brain stem and more rarely during drug toxicity. In this brief video case report, we present a 91-year-old woman with PPG after sustaining bilateral hemispheric ischemic stroke. We also present the neuroanatomic substrates of PPG along with its main saccadic variant, and we coin the hypothesis that PPG actually represents the paralysis of eye saccades.
乒乓球凝视（PPG）是一种罕见的眼球运动异常，表现为在两个极端位置之间共轭性、平滑、有节奏的水平眼球偏斜。PPG见于严重双侧半球或后颅窝脑损伤且脑干完整的病例，在药物中毒时较少见。在这份简短的视频病例报告中，我们介绍了一名91岁女性，她在发生双侧半球缺血性中风后出现了PPG。我们还介绍了PPG的神经解剖学基础及其主要的扫视变异型，并提出了PPG实际上代表眼球扫视麻痹的假说。
