text: 颅内高压@1.小脑幕切迹疝主要表现包括：①颅内压增高剧烈头痛频繁呕吐，程度较脑疝前加重，常伴烦躁不安；②意识改变：可由嗜睡、昏睡到浅昏迷以至深昏迷；③瞳孔改变动眼神经受到压迫牵拉所致，早期病侧瞳孔略缩小光反应稍迟钝，随后逐渐散大，直接及间接光反应消失，晚期因中脑动眼神经核受压麻痹引起双侧瞳孔散大光反应消失；④运动障碍：表现为对侧偏瘫。
entities.entity: 颅内高压
entities.label: dis
entities.entity: 小脑幕切迹疝
entities.label: dis
entities.entity: 颅内压
entities.label: ite
entities.entity: 颅内压增高
entities.label: sym
entities.entity: 头
entities.label: bod
entities.entity: 剧烈头痛
entities.label: sym
entities.entity: 频繁呕吐
entities.label: sym
entities.entity: 脑疝
entities.label: dis
entities.entity: 烦躁不安
entities.label: sym
entities.entity: 意识改变
entities.label: sym
entities.entity: 嗜睡
entities.label: sym
entities.entity: 昏睡
entities.label: sym
entities.entity: 浅昏迷
entities.label: sym
entities.entity: 深昏迷
entities.label: sym
entities.entity: 瞳孔
entities.label: bod
entities.entity: 瞳孔改变
entities.label: sym
entities.entity: 动眼神经
entities.label: bod
entities.entity: 瞳孔
entities.label: bod
entities.entity: 病侧瞳孔略缩小
entities.label: sym
entities.entity: 光反应稍迟钝
entities.label: sym
entities.entity: 光反应消失
entities.label: sym
entities.entity: 中脑动眼神经核
entities.label: bod
entities.entity: 瞳孔
entities.label: bod
entities.entity: 双侧瞳孔散大
entities.label: sym
entities.entity: 光反应消失
entities.label: sym
entities.entity: 运动障碍
entities.label: sym
entities.entity: 对侧偏瘫
entities.label: sym