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人体长期处于高原缺氧环境中,由于缺氧刺激,机体通过神经内分泌调节,使骨髓产生大量红细胞。但过多的红细胞生成会导致血黏度增高,微循环阻力增加,加重组织细胞缺氧,并引起一系列头昏、头痛、气促等临床症状[1],称高原红细胞增多症(high altitude polycythemia,HAPC)。根据2004年第六届高原医学国际会议的标准,对于长期居住于海拔>2 500m的人,男性血红蛋白(Hb)>210 mg/dl,
Long-term human exposure to high altitude hypoxia, due to hypoxia stimulation, the body through neuroendocrine regulation, so that a large number of red blood cells in the bone marrow. However, excessive erythropoiesis results in increased blood viscosity, increased microcirculation resistance, aggravated tissue hypoxia, and causes a series of clinical symptoms such as dizziness, headache and shortness of breath. 1 High altitude polycythemia , HAPC). According to the criteria of the 6th International Conference of High Altitude Medicine in 2004, for those who have long lived at altitudes> 2 500 m, their hemoglobin (Hb)> 210 mg / dl,