晕厥(文献综述)

• 作 者: 战其民
• 机 构: 怀柔县卫校
• 出 处: 国外医学参考资料.神经病学神经外科学分册
• 发表日期: 1977年01期
• 关键词: 缺氧状态 颈动脉窦 一时性 体位性低血压 脑缺血 心输出量 面色苍白 心源性晕厥 主动脉弓综合征 小发作

一、定义晕厥是由于一时性广泛性脑供血不足,导致大脑皮层高度抑制而突然引起短暂的意识丧失。只有在大脑从原来供氧丰富的情况下突然陷入缺氧状态时才会发生。晕厥的基本临床特点: 1.发作前期:病人常感头部及全身不适,视力模糊,耳鸣,面色苍白,出汗,预示即将发生晕厥。此时如病人取头低位躺卧姿势常可防止发作。

First, the definition of syncope is due to a temporary generalized brain insufficiency, resulting in a high degree of inhibition of the cerebral cortex suddenly led to a temporary loss of consciousness. It happens only when the brain plunges suddenly into an anoxic state from its original rich oxygen supply. The basic clinical features of syncope: 1. Pre-seizure: patients often feel head and body discomfort, blurred vision, tinnitus, pale, sweating, indicating that the upcoming syncope. At this time, such as patients take the lead low lying position can often prevent the attack.