高原习服过程中的微循环观察

文章对同一批平原籍新兵60人进驻海拔4700m高原暴露3月时甲襞微循环与血液动力学进行了观测。与对照组比较其结果显示甲襞管襻数目减少,长度缩短,输入枝直径扩张,汗腺导管增多;平均心率增快,血容量减少,心功能参数值下降,血液粘度、总外周阻力及平均舒张压增高,微循环血液更新流速则有明显改善,平均收缩压比同海拔应激反应期下降(P<0.01)。结合急进期与习服期已有的研究结果分析,表明了此时期微循环形态与功能特点既与应激反应期不同,又与久居习服期不同,仍处于不稳定的过渡阶段,并将此阶段称作为亚习服期。认为对此进一步探讨将有助于亚急性高山病的研究。

The observation on the microcirculatiort of the Soldiers in Adapted Environment at High Altitude

The author observed the changes of the nail fold microcirculation and hemodynamics of 60 soldiers exposed for three months at high altitude. The results were as follows: The nail fold apexes reduced, its length shortened, the diametre of the afferent limb dilated, the Duct of Sweat Gland increased, the mean heart rate speeded up, the blood volume and the heart function reduced > the blood viscosity, total pressure resistance and MDP rose, the blood renewing of microcirculation improved obviously. MSP was lower than just coming here in the same extreme. According to the research result of quickly entering and adapted period . it showed that the microcirculation shape and function characteristics were different from those who just coming here and those adaptable migrating people who had been living here for a long time, they still were in an unsteady transition period. We shall call this period Sub-Adapted rteriod. Further study of it will be helpful to the research of subacute mountain sickness.