摘要
目的观察青年男性完全习服高原环境后的左心超声心动图的变化。方法实验分为平原组(海拔1400m)和高原组(移居海拔3900～4700m高原1年以上),利用超声诊断仪对两组人员进行常规超声心脏检测,测量指标包括左室舒张末内径(LVEDD)、左室收缩末内径(LVESD)、左室缩短率(LVFS)、每搏输出量(SV)、搏动指数(EF)、每分输出量(CO),比较移居高原习服人群左心超声心动图参数的变化。结果高原组LVEDD、LVESD、SV非常显著低于平原组(P<0.01),而LVFS、EF值非常显著高于平原组(P<0.01)。结论移居高原可使左室容量轻微减小,每搏输出量减少,每分输出量增加。
Objective To observe left heart echocardiographic changes in young men who had acclimatized completely to high altitude environment. Methods A total of 239 young male army officers and soldiers were divided into two groups：plain group（ living at 1400 m altitude over half a year, n = 75 ） and high ahitude groups who had migrated to 3900 - 4700 m altitude at least one year（ n = 164）. A diasonography was employed to measure their left ventricular end diastolic diameter（ LVEDD）, left ventricular end systolic diameter（ LVESD）, percent fractional shortening of left ventricle （ LVFS）, stroke volume （ SV ）, pulsatility index （PI） and cardiac minute output （CO） of both groups. Results The LVEDD, LVESS and SV in high altitude group was very significantly lower than those in plain group （P 〈 0.01 ）. However, the LVFS and PI in high altitude group was very significantly higher than those in plain group （P 〈 0. 01 ）. Conclusion Long migration to high ahilude may slightly reduce left ventricular volume and SV, and increase CO of migrators.
出处
《西南国防医药》
CAS
2010年第10期1117-1118,共2页
Medical Journal of National Defending Forces in Southwest China
关键词
高原
习服
心脏
超声心动图
high altitude
acclimatization
left heart
echocardiography
