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本文提供事实,单侧脑干病人任何方向的视动性刺激均可使水平视动后眼震(OKAN)消失,而他们的温度性冷热反应虽然性质不正常但却仍然存在,这意味着能够区别周围性原因和脑干病变所致的OKAN消失.方法:3例病人在几个月前患过侧延髓梗塞,1例病人患脑干多发性硬化,他们4人接受标准的前庭功能检查,包括校正、自发眼震、注视眼震、跟踪眼震、位置性眼震、阻尼正弦摆动和哈氏法双耳温度冷热试验.另外还检查作者实验室所发展起来的标准OKAN试验.病人坐在检查椅上,头的枕部靠在头托上,并用带子固定,用直流电电眼动图(EOG)记录水平
This article provides the fact that visual acuity stimuli in any direction in patients with unilateral brainstem can cause horizontal post-ocular nystagmus (OKAN) to disappear, whereas their thermotactic cold-and-hot reactions persist despite their unusual nature, meaning OKANOS can distinguish between peripheral causes and loss of OKAN due to brainstem lesions.Methods: Three patients had lateral bulbar infarction several months ago and one patient suffered from multiple sclerosis of the brainstem. Four of them received standard vestibular function tests , Including correction, spontaneous nystagmus, gaze nystagmus, tracking nystagmus, positional nystagmus, damped sinusoidal swings, and Hamster binaural temperature and cooling tests, as well as the standard OKAN test developed by the authors laboratory. Sitting on the examination chair, the head of the occiput against the head care, and fixed with a strap, with direct current electro-dynamic eye chart (EOG) record level