健康军人急进高原右心功能及肺功能变化调查分析

Analysis of changes in right ventricular function and pulmonary function among health soldier following rapid accent to high altitude

目的:探讨采用阶梯习服急进高原健康军人的右心功能及肺功能变化特点。方法:选择50例海拔1000m以下平原地区青年士兵,进行阶梯习服训练,分析士兵急进高原前、后右心功能及肺功能的指标变化。结果:(1)与平原相比较,进驻海拔3000m高原(1d,7d)及进驻海拔4000m高原(1d)Tei指数、PVR、mPAP明显增高(P<0.05),而E/Aratio明显降低(P<0.05),但进驻海拔3000m高原(1d,7d)及进驻海拔4000m高原(1d)士兵的Tei指数、PVR、mPAP、E/Aratio经F检验差异均无统计学意义(P>0.05);(2)与平原相比较,进驻海拔3000m高原(1d,7d)及进驻海拔4000m高原(1d)FVC均明显降低(P<0.05),而FEV1、FEV1/FVC、PEF均经比较差异无统计学意义(P>0.05),进驻海拔3000m高原(1d,7d)及进驻海拔4000m高原(1d)FVC、FEV1、FEV1/FVC、PEF经F检验差异均无统计学意义(P>0.05)。结论:急进高原的青年士兵在急进初期表现为限制性肺功能下降,肺血管阻力明显升高,肺动脉压增高,进而使右室后负荷增加等一系列机体代偿性反应,但采用阶梯习服训练后,机体能够初步过渡到习服期,此方法可加快士兵的高原习服。

Objective ：To analyze changes in right ventricular function and pulmonary function among health soldier following rapid accent to high altitude .Methods ：50 cases of plain （altitude 1000m or less） area youth soldiers were received ladder acclimatization training ,before and after soldiers radical plateau ,changes in right ventricular function and pulmonary function were compared .Results ： ① After stationed in 3000m altitude （1d ,7d） and 4000m altitude （1d） Tei index ,PVR ,mPAP among soldiers was significantly higher than in plateau （P 〈 0 .05） , while E / Aratio significantly lower （P 〈 0 .05 ） ,but entered the 3000m altitude plateau （1d ,7d） and 4000m altitude （1d） Tei index ,PVR ,mPAP ,E / Aratio among soldiers by F test showed no significant difference （P 〉 0 . 05） ; ② After stationed in 3000m altitude （1d ,7d） and 4000m altitude （1d ） FVC among soldiers were significantly lower （P〈 0 .05） ,and FEV1 ,FEV1 / FVC ,PEF were confirmed no significant difference （P〉 0 .05） ,stationed in 3000m altitude plateau （1d ,7d） and 4000m altitude （1d） FVC ,FEV1 ,FEV1 / FVC ,PEF by F test showed no significant difference （ P 〉 0 .05 ） .Conclusion ：Young soldiers acclimatization in plateau at early radical can be expressed as restriction of pulmonary function decline ,increased restrictive pulmonary vascular resistance significantly and pulmonary pressure ,thereby enabling the right ventricular load increase and a series of body＇s compensatory response ,but after a stepwise acclimatization training ,the body can transition to the initial acclimatization period ,this method may speed up the altitude acclimatization .