Shen X, Zhang X, Chen J, Meng J, Xiang Q
Institute of Space Medico-Engineering, Beijing, China.
Space Med Med Eng (Beijing). 1997 Oct;10(5):367-9.
Changes of microcirculation in nasal mucosa in 19 young men during 2.5 h head-down -15 degrees tilt (DHT) were observed with Laser Doppler Flowmetry. The results showed that the change of microcirculation in nasal mucosa was significant, blood volume, concentration and the velocity of blood flow increased, and distinct periodical wave of microvessels appeared during HDT. The results suggest that the change of microcirculation in nasal mucosa caused by fluid shift from the lower to the upper body is one of the important factors causing stuffy nose and breathe with a little difficulty.
采用激光多普勒血流仪观察了19名青年男性在头低位-15°倾斜2.5小时期间鼻黏膜微循环的变化。结果显示，鼻黏膜微循环变化显著，血容量、血液浓度和血流速度增加，且在头低位倾斜期间出现明显的微血管周期性波动。结果提示，体液从上半身向下半身转移引起的鼻黏膜微循环变化是导致鼻塞和轻度呼吸困难的重要因素之一。
