对移居海拔3658m、4500m处不同年限的健康成人男性680名用心脏B超检测了心脏各房室及大血管内径、室壁厚度,并与平原健康成人对比。结果发现,高原主要影响右心的流出道及心室壁,并随海拔升高而增大、增厚,且显示移居10～20年内可稳定在一定水平上。提示健康成人心血管系统的影响可能具有自限性。 680 healthy adults at different altitudes of 3658m and 4500m were investigated by heart B-mode ultrasonography. The atrioventricular and macrovascular diameters and wall thickness were measured and compared with those of plain healthy adults. The results showed that the plateau mainly affected the right ventricular outflow tract and ventricular wall, and increased with altitude, thickening, and showed that immigration within 10 to 20 years can be stabilized at a certain level. Suggesting that the effects of cardiovascular health in healthy adults may be self-limiting.