同侧推挤：延髓外侧综合征的一个被遗忘的体征。
Ipsipulsion: A forgotten sign of lateral medullary syndrome.
作者信息
Paliwal Vimal Kumar, Kumar Surendra, Gupta Durgesh Kumar, Neyaz Zafar
机构信息
Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
Department of Radiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
出版信息
Ann Indian Acad Neurol. 2015 Jul-Sep;18(3):284-5. doi: 10.4103/0972-2327.150621.
Ipsipulsion is a clinical sign specifically seen in lateral medullary syndrome. It is characterized by two involuntary phenomenons. One is static eye deviation ipsilateral to the side of lesion especially in the absence of visual fixation. Second is the saccadic lateropulsion whereby voluntary saccades towards the side of lesion are hypermetric and saccades towards opposite side are hypometric. The vertical saccades may also appear oblique. Ipsipulsion is produced due to damage to the contralateral olivocerebellar pathways that crosses midline in medulla and pass through the ipsilateral inferior cerebellar peduncle to supply ipsilateral cerebellar hemisphere.
同侧冲动是一种在延髓外侧综合征中特有的临床体征。它具有两种不自主现象。一种是向病变侧的静态眼球偏斜，尤其是在没有视觉注视时。第二种是扫视性同侧冲动，即向病变侧的随意扫视幅度过大，而向对侧的扫视幅度过小。垂直扫视也可能呈斜向。同侧冲动是由于对侧橄榄小脑通路受损所致，该通路在延髓处交叉中线，经同侧小脑下脚供应同侧小脑半球。
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