在西藏山南(3600m)观察了高原头痛、头昏的发生情况和与脑血流的关系。结果表明,快速进驻高原和久居高原人头痛、头昏的人数均达一半以上,快速进驻高原头痛、头昏者的脑血流图(REG)主峰波幅、流入容积速度和上升角明显高于无症状者。久居高原头痛、头昏者的REG主峰波幅明显高于无症状者,流入容积速度和上升角明显小于无症状者。提示高原急、慢性缺氧头痛、头昏的原因不同,急性缺氧头痛、头昏同脑血流过度增加有关;慢性缺氧头痛、头昏主要同脑血管的顺应性降低、脑血流减少有关。 In the south of Tibet (3600m) observed headache, dizziness and cerebral blood flow. The results showed that headache and dizziness occurred in more than half of the residents in the rapid stationed in the plateau and in the plateau for a long time. The headache in rapid plateau and the main peak amplitude of cerebral blood flow (REG) in dizziness were significantly higher than those without Symptoms. Long-standing high altitude headache, dizziness, REG main peak amplitude was significantly higher than asymptomatic, inflow volume rate and rising angle was significantly less than asymptomatic. Prompt high altitude acute and chronic hypoxia headache, dizziness for different reasons, acute hypoxia headache, dizziness and cerebral blood flow over the increase; chronic hypoxic headache, dizziness mainly with cerebral vascular compliance decreased cerebral blood flow decreased related.