摘要
作者对海拔５２００ｍ从事重体力劳动４５天的４８名青年在劳动前后现场摄取ｘ线胸片。结果：心脏横径、心脏长径、心脏面积、心胸比率较初入高原时显著缩小（Ｐ＜０．０１）；肺动脉于横径、肺动脉段突度、右肺下动脉横径、右肺下动脉与气管横径比值显著增加（Ｐ＜０．０１）；升主动脉和主动脉横径、胸宽和肺面积增加或显著增加（Ｐ＜０．０５或Ｐ＜０．０１）。其中２例诊断为高原性心脏病，３例诊断为高原性肺水肿。在海拔５２００ｍ从事重体力劳动４５天，劳动能力较在平原时降低一个劳动强度等级。
This article reported the results of comparison of chest radiographs taken before and after heavy physical labor for 45 days at high altitude(5200m)in 48 young adults. The results showed that transverse diameter. longitudinal diameter of the heart. cardiac area and cardio- thoracic ratio decreased markedly after labor(P<0.01 ).The transverse diameter of the main pulmonary artery. bulging of pulmonary artery segment. transverse diameter of right lower pulmonary artery as well as the ratio of right lower pulmonary artery to transverse diameter of trachea markedly increased(P<0.01).There was a moderate to marked increase of the transverse diameters of ascending aorta and the aorta. width of the chest and pulmonary area(P<0. 05 or P<0. 01).2 cases were diagnosed as high altitude heart disease and 3 cases diagnosed as high altitude pulmonary edema. The authors concluded that labor capability increased by one scale after heavy labor at high aItitude(5200m)for 45 days.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
1995年第10期676-679,共4页
Chinese Journal of Radiology
关键词
高海拔
劳动
心脏功能试验
X线摄影
Altitude Work Heart function tests Evaluation studies Radiography
