人工富氧环境改善急进高原人员睡眠效果的研究

Objective To study the effects of the artificial oxygen-enriched environment (is called "oxygen-enriched room" in short) on sleep efficiency of the people who participate in the mission on plateau with hurry-up entry,and to investigate the anti-hypoxia effect of oxygen-enriched room to plateau acclimatization. Methods Eighteen subjects were randomly and averagety allocated into plain group,oxygen-enriched group and hypoxia group.Only the later two groups were dispatched to plateau by air.Molecular sieve oxygenerator was used to supply the room with oxygen on 3500 m plateau.The oxygen-enriched group and hypoxia group got into the oxygen-enriched rooms and normal rooms respectively at 22 o' clock and took rest till to 9 o' clock next morning.The changes of heart rate (HR) and the saturation of blood oxygen (SaO2) of three groups were recorded and compared between the states of with and without oxygen enrichment.The subjects were monitored by sleep respiration recording and analysis system. Results ①The SaO2 of the oxygen-enriched group was 92.3%±1.0%,and it was significant higher than the state before oxygen enrichment (82.9%±4.2%) and than that of hypoxia group (79.3%±5.9%,P<0.01),but lower than that of plain group (97.3%±0.8%,P<0.05).②There were less deep sleep and more slight sleep in hypoxia group and oxygen-enriched group than in plain group.The hypopnea and apnea hypopnea index (AHI) of plain group was significant lower than that of hypoxia group and oxygen-enriched group (P<0.05).The AHI of the oxygen-enriched group was 28.1±11.9,and it was significant lower than that of hypoxia group (53.2±23.4)(P<0.05).③The normalized low-frequency (Ln) and the ratio of low-frequency to high-frequency (LF/HF) measured in sleep was respectively 89.3±2.9 and 6.4±1.4 in oxygen-enriched group comparing to 90.2±1.8 and 9.9±1.9 in hypoxia group but without statistical difference.The corresponding Ln and LF/HF of plain group was 85.8±2.9 and 6.4±1.4 respectively,significantly higher than those of other two groups (P<0.05).Plain group also showed higher normalized high-frequency than others(P<0.05). Conclusions Oxygen-enriched environment can effectively improve the sleep quality but significantly change heart rate variation (HRV) of the people who participate in the mission with hurry-up entry to plateau.Further studies are still needed to reveal the quantitative effectiveness of oxygen-enriched room to plateau acclimatization.     

多层螺旋CT对食管鱼刺异物的诊断价值

Objective To investigate the detection rate and diagnostic value of multi-slice spiral CT scan in detecting fish bone impaction in the esophagus.Methods Experimental group: 30 fresh water fish bones from three variety classes were divided into three groups with length of(23.36±0.15), (28.51±0.07) and (30.89±0.10) mm, and diameter of (4.49±0.31), (1.78±0.09) and (0.49±0.07) mm.The fish bones were put into esophagus models in three different types including parallel, perpendicular and oblique.MSCT with axial scan combined with three dimensional reconstruction technique and plain X-ray film (CR and DR) were used to examine the model.The relations of the number and rate of fish bones were compared between MSCT and X-ray film.Clinical group: MSCT imaging were performed in 20 cases proved by esophageal endoscope or clinical operation, among which 11 cases received plain X-ray film (CR and DR), 15 cases received Barium-soaked cotton and 17 cases received endoscope.Paired Chi-square test was used to compare the differences of detection of fishbone by the different ways.Results In experimental group: All the 90 cases(100%) fish bones of three different species were clearly revealed on MSCT image; only 60 cases(66.7%) fish bones were revealed by plain X-ray film(CR and DR).The number and rate of fish bones detected by MSCT was higher than that of plain X-ray film (CR and DR) (X2=28.03, P < 0.01).In clinical group: 20 cases were made right diagnosis by MSCT, and the location and size of fish bone in the esophagus, the surrounding and complications of esophagus could be clearly demonstrated on MSCT image.Two cases detected by plain X-ray film(CR and DR) ;9 cases detected by Barium-soaked cotton;14 cases detected by endoscopy.The number and rate of fish bones detected by MSCT was higher than that of plain Xray film (CR and DR) (X2=7.11, P < 0.05) and Barium-soaked cotton (X2=4.17, P < 0.05).Conclusions The sensitivity and detection rate of fish bone with MSCT was high and could evaluate the surrounding and complications of the esophagus.MSCT could be used as the first examination of impacted fish bones in the esophagus.     

多层螺旋CT对食管鱼刺异物的诊断价值

Objective To investigate the detection rate and diagnostic value of multi-slice spiral CT scan in detecting fish bone impaction in the esophagus.Methods Experimental group: 30 fresh water fish bones from three variety classes were divided into three groups with length of(23.36±0.15), (28.51±0.07) and (30.89±0.10) mm, and diameter of (4.49±0.31), (1.78±0.09) and (0.49±0.07) mm.The fish bones were put into esophagus models in three different types including parallel, perpendicular and oblique.MSCT with axial scan combined with three dimensional reconstruction technique and plain X-ray film (CR and DR) were used to examine the model.The relations of the number and rate of fish bones were compared between MSCT and X-ray film.Clinical group: MSCT imaging were performed in 20 cases proved by esophageal endoscope or clinical operation, among which 11 cases received plain X-ray film (CR and DR), 15 cases received Barium-soaked cotton and 17 cases received endoscope.Paired Chi-square test was used to compare the differences of detection of fishbone by the different ways.Results In experimental group: All the 90 cases(100%) fish bones of three different species were clearly revealed on MSCT image; only 60 cases(66.7%) fish bones were revealed by plain X-ray film(CR and DR).The number and rate of fish bones detected by MSCT was higher than that of plain X-ray film (CR and DR) (X2=28.03, P < 0.01).In clinical group: 20 cases were made right diagnosis by MSCT, and the location and size of fish bone in the esophagus, the surrounding and complications of esophagus could be clearly demonstrated on MSCT image.Two cases detected by plain X-ray film(CR and DR) ;9 cases detected by Barium-soaked cotton;14 cases detected by endoscopy.The number and rate of fish bones detected by MSCT was higher than that of plain Xray film (CR and DR) (X2=7.11, P < 0.05) and Barium-soaked cotton (X2=4.17, P < 0.05).Conclusions The sensitivity and detection rate of fish bone with MSCT was high and could evaluate the surrounding and complications of the esophagus.MSCT could be used as the first examination of impacted fish bones in the esophagus.     

多层螺旋CT对食管鱼刺异物的诊断价值

Objective To investigate the detection rate and diagnostic value of multi-slice spiral CT scan in detecting fish bone impaction in the esophagus.Methods Experimental group: 30 fresh water fish bones from three variety classes were divided into three groups with length of(23.36±0.15), (28.51±0.07) and (30.89±0.10) mm, and diameter of (4.49±0.31), (1.78±0.09) and (0.49±0.07) mm.The fish bones were put into esophagus models in three different types including parallel, perpendicular and oblique.MSCT with axial scan combined with three dimensional reconstruction technique and plain X-ray film (CR and DR) were used to examine the model.The relations of the number and rate of fish bones were compared between MSCT and X-ray film.Clinical group: MSCT imaging were performed in 20 cases proved by esophageal endoscope or clinical operation, among which 11 cases received plain X-ray film (CR and DR), 15 cases received Barium-soaked cotton and 17 cases received endoscope.Paired Chi-square test was used to compare the differences of detection of fishbone by the different ways.Results In experimental group: All the 90 cases(100%) fish bones of three different species were clearly revealed on MSCT image; only 60 cases(66.7%) fish bones were revealed by plain X-ray film(CR and DR).The number and rate of fish bones detected by MSCT was higher than that of plain X-ray film (CR and DR) (X2=28.03, P < 0.01).In clinical group: 20 cases were made right diagnosis by MSCT, and the location and size of fish bone in the esophagus, the surrounding and complications of esophagus could be clearly demonstrated on MSCT image.Two cases detected by plain X-ray film(CR and DR) ;9 cases detected by Barium-soaked cotton;14 cases detected by endoscopy.The number and rate of fish bones detected by MSCT was higher than that of plain Xray film (CR and DR) (X2=7.11, P < 0.05) and Barium-soaked cotton (X2=4.17, P < 0.05).Conclusions The sensitivity and detection rate of fish bone with MSCT was high and could evaluate the surrounding and complications of the esophagus.MSCT could be used as the first examination of impacted fish bones in the esophagus.     

多层螺旋CT对食管鱼刺异物的诊断价值

Objective To investigate the detection rate and diagnostic value of multi-slice spiral CT scan in detecting fish bone impaction in the esophagus.Methods Experimental group: 30 fresh water fish bones from three variety classes were divided into three groups with length of(23.36±0.15), (28.51±0.07) and (30.89±0.10) mm, and diameter of (4.49±0.31), (1.78±0.09) and (0.49±0.07) mm.The fish bones were put into esophagus models in three different types including parallel, perpendicular and oblique.MSCT with axial scan combined with three dimensional reconstruction technique and plain X-ray film (CR and DR) were used to examine the model.The relations of the number and rate of fish bones were compared between MSCT and X-ray film.Clinical group: MSCT imaging were performed in 20 cases proved by esophageal endoscope or clinical operation, among which 11 cases received plain X-ray film (CR and DR), 15 cases received Barium-soaked cotton and 17 cases received endoscope.Paired Chi-square test was used to compare the differences of detection of fishbone by the different ways.Results In experimental group: All the 90 cases(100%) fish bones of three different species were clearly revealed on MSCT image; only 60 cases(66.7%) fish bones were revealed by plain X-ray film(CR and DR).The number and rate of fish bones detected by MSCT was higher than that of plain X-ray film (CR and DR) (X2=28.03, P < 0.01).In clinical group: 20 cases were made right diagnosis by MSCT, and the location and size of fish bone in the esophagus, the surrounding and complications of esophagus could be clearly demonstrated on MSCT image.Two cases detected by plain X-ray film(CR and DR) ;9 cases detected by Barium-soaked cotton;14 cases detected by endoscopy.The number and rate of fish bones detected by MSCT was higher than that of plain Xray film (CR and DR) (X2=7.11, P < 0.05) and Barium-soaked cotton (X2=4.17, P < 0.05).Conclusions The sensitivity and detection rate of fish bone with MSCT was high and could evaluate the surrounding and complications of the esophagus.MSCT could be used as the first examination of impacted fish bones in the esophagus.     

多层螺旋CT对食管鱼刺异物的诊断价值

Objective To investigate the detection rate and diagnostic value of multi-slice spiral CT scan in detecting fish bone impaction in the esophagus.Methods Experimental group: 30 fresh water fish bones from three variety classes were divided into three groups with length of(23.36±0.15), (28.51±0.07) and (30.89±0.10) mm, and diameter of (4.49±0.31), (1.78±0.09) and (0.49±0.07) mm.The fish bones were put into esophagus models in three different types including parallel, perpendicular and oblique.MSCT with axial scan combined with three dimensional reconstruction technique and plain X-ray film (CR and DR) were used to examine the model.The relations of the number and rate of fish bones were compared between MSCT and X-ray film.Clinical group: MSCT imaging were performed in 20 cases proved by esophageal endoscope or clinical operation, among which 11 cases received plain X-ray film (CR and DR), 15 cases received Barium-soaked cotton and 17 cases received endoscope.Paired Chi-square test was used to compare the differences of detection of fishbone by the different ways.Results In experimental group: All the 90 cases(100%) fish bones of three different species were clearly revealed on MSCT image; only 60 cases(66.7%) fish bones were revealed by plain X-ray film(CR and DR).The number and rate of fish bones detected by MSCT was higher than that of plain X-ray film (CR and DR) (X2=28.03, P < 0.01).In clinical group: 20 cases were made right diagnosis by MSCT, and the location and size of fish bone in the esophagus, the surrounding and complications of esophagus could be clearly demonstrated on MSCT image.Two cases detected by plain X-ray film(CR and DR) ;9 cases detected by Barium-soaked cotton;14 cases detected by endoscopy.The number and rate of fish bones detected by MSCT was higher than that of plain Xray film (CR and DR) (X2=7.11, P < 0.05) and Barium-soaked cotton (X2=4.17, P < 0.05).Conclusions The sensitivity and detection rate of fish bone with MSCT was high and could evaluate the surrounding and complications of the esophagus.MSCT could be used as the first examination of impacted fish bones in the esophagus.     

多层螺旋CT对食管鱼刺异物的诊断价值

Objective To investigate the detection rate and diagnostic value of multi-slice spiral CT scan in detecting fish bone impaction in the esophagus.Methods Experimental group: 30 fresh water fish bones from three variety classes were divided into three groups with length of(23.36±0.15), (28.51±0.07) and (30.89±0.10) mm, and diameter of (4.49±0.31), (1.78±0.09) and (0.49±0.07) mm.The fish bones were put into esophagus models in three different types including parallel, perpendicular and oblique.MSCT with axial scan combined with three dimensional reconstruction technique and plain X-ray film (CR and DR) were used to examine the model.The relations of the number and rate of fish bones were compared between MSCT and X-ray film.Clinical group: MSCT imaging were performed in 20 cases proved by esophageal endoscope or clinical operation, among which 11 cases received plain X-ray film (CR and DR), 15 cases received Barium-soaked cotton and 17 cases received endoscope.Paired Chi-square test was used to compare the differences of detection of fishbone by the different ways.Results In experimental group: All the 90 cases(100%) fish bones of three different species were clearly revealed on MSCT image; only 60 cases(66.7%) fish bones were revealed by plain X-ray film(CR and DR).The number and rate of fish bones detected by MSCT was higher than that of plain X-ray film (CR and DR) (X2=28.03, P < 0.01).In clinical group: 20 cases were made right diagnosis by MSCT, and the location and size of fish bone in the esophagus, the surrounding and complications of esophagus could be clearly demonstrated on MSCT image.Two cases detected by plain X-ray film(CR and DR) ;9 cases detected by Barium-soaked cotton;14 cases detected by endoscopy.The number and rate of fish bones detected by MSCT was higher than that of plain Xray film (CR and DR) (X2=7.11, P < 0.05) and Barium-soaked cotton (X2=4.17, P < 0.05).Conclusions The sensitivity and detection rate of fish bone with MSCT was high and could evaluate the surrounding and complications of the esophagus.MSCT could be used as the first examination of impacted fish bones in the esophagus.     

多层螺旋CT对食管鱼刺异物的诊断价值

Objective To investigate the detection rate and diagnostic value of multi-slice spiral CT scan in detecting fish bone impaction in the esophagus.Methods Experimental group: 30 fresh water fish bones from three variety classes were divided into three groups with length of(23.36±0.15), (28.51±0.07) and (30.89±0.10) mm, and diameter of (4.49±0.31), (1.78±0.09) and (0.49±0.07) mm.The fish bones were put into esophagus models in three different types including parallel, perpendicular and oblique.MSCT with axial scan combined with three dimensional reconstruction technique and plain X-ray film (CR and DR) were used to examine the model.The relations of the number and rate of fish bones were compared between MSCT and X-ray film.Clinical group: MSCT imaging were performed in 20 cases proved by esophageal endoscope or clinical operation, among which 11 cases received plain X-ray film (CR and DR), 15 cases received Barium-soaked cotton and 17 cases received endoscope.Paired Chi-square test was used to compare the differences of detection of fishbone by the different ways.Results In experimental group: All the 90 cases(100%) fish bones of three different species were clearly revealed on MSCT image; only 60 cases(66.7%) fish bones were revealed by plain X-ray film(CR and DR).The number and rate of fish bones detected by MSCT was higher than that of plain X-ray film (CR and DR) (X2=28.03, P < 0.01).In clinical group: 20 cases were made right diagnosis by MSCT, and the location and size of fish bone in the esophagus, the surrounding and complications of esophagus could be clearly demonstrated on MSCT image.Two cases detected by plain X-ray film(CR and DR) ;9 cases detected by Barium-soaked cotton;14 cases detected by endoscopy.The number and rate of fish bones detected by MSCT was higher than that of plain Xray film (CR and DR) (X2=7.11, P < 0.05) and Barium-soaked cotton (X2=4.17, P < 0.05).Conclusions The sensitivity and detection rate of fish bone with MSCT was high and could evaluate the surrounding and complications of the esophagus.MSCT could be used as the first examination of impacted fish bones in the esophagus.     

多层螺旋CT对食管鱼刺异物的诊断价值

Objective To investigate the detection rate and diagnostic value of multi-slice spiral CT scan in detecting fish bone impaction in the esophagus.Methods Experimental group: 30 fresh water fish bones from three variety classes were divided into three groups with length of(23.36±0.15), (28.51±0.07) and (30.89±0.10) mm, and diameter of (4.49±0.31), (1.78±0.09) and (0.49±0.07) mm.The fish bones were put into esophagus models in three different types including parallel, perpendicular and oblique.MSCT with axial scan combined with three dimensional reconstruction technique and plain X-ray film (CR and DR) were used to examine the model.The relations of the number and rate of fish bones were compared between MSCT and X-ray film.Clinical group: MSCT imaging were performed in 20 cases proved by esophageal endoscope or clinical operation, among which 11 cases received plain X-ray film (CR and DR), 15 cases received Barium-soaked cotton and 17 cases received endoscope.Paired Chi-square test was used to compare the differences of detection of fishbone by the different ways.Results In experimental group: All the 90 cases(100%) fish bones of three different species were clearly revealed on MSCT image; only 60 cases(66.7%) fish bones were revealed by plain X-ray film(CR and DR).The number and rate of fish bones detected by MSCT was higher than that of plain X-ray film (CR and DR) (X2=28.03, P < 0.01).In clinical group: 20 cases were made right diagnosis by MSCT, and the location and size of fish bone in the esophagus, the surrounding and complications of esophagus could be clearly demonstrated on MSCT image.Two cases detected by plain X-ray film(CR and DR) ;9 cases detected by Barium-soaked cotton;14 cases detected by endoscopy.The number and rate of fish bones detected by MSCT was higher than that of plain Xray film (CR and DR) (X2=7.11, P < 0.05) and Barium-soaked cotton (X2=4.17, P < 0.05).Conclusions The sensitivity and detection rate of fish bone with MSCT was high and could evaluate the surrounding and complications of the esophagus.MSCT could be used as the first examination of impacted fish bones in the esophagus.     

多层螺旋CT对食管鱼刺异物的诊断价值

Objective To investigate the detection rate and diagnostic value of multi-slice spiral CT scan in detecting fish bone impaction in the esophagus.Methods Experimental group: 30 fresh water fish bones from three variety classes were divided into three groups with length of(23.36±0.15), (28.51±0.07) and (30.89±0.10) mm, and diameter of (4.49±0.31), (1.78±0.09) and (0.49±0.07) mm.The fish bones were put into esophagus models in three different types including parallel, perpendicular and oblique.MSCT with axial scan combined with three dimensional reconstruction technique and plain X-ray film (CR and DR) were used to examine the model.The relations of the number and rate of fish bones were compared between MSCT and X-ray film.Clinical group: MSCT imaging were performed in 20 cases proved by esophageal endoscope or clinical operation, among which 11 cases received plain X-ray film (CR and DR), 15 cases received Barium-soaked cotton and 17 cases received endoscope.Paired Chi-square test was used to compare the differences of detection of fishbone by the different ways.Results In experimental group: All the 90 cases(100%) fish bones of three different species were clearly revealed on MSCT image; only 60 cases(66.7%) fish bones were revealed by plain X-ray film(CR and DR).The number and rate of fish bones detected by MSCT was higher than that of plain X-ray film (CR and DR) (X2=28.03, P < 0.01).In clinical group: 20 cases were made right diagnosis by MSCT, and the location and size of fish bone in the esophagus, the surrounding and complications of esophagus could be clearly demonstrated on MSCT image.Two cases detected by plain X-ray film(CR and DR) ;9 cases detected by Barium-soaked cotton;14 cases detected by endoscopy.The number and rate of fish bones detected by MSCT was higher than that of plain Xray film (CR and DR) (X2=7.11, P < 0.05) and Barium-soaked cotton (X2=4.17, P < 0.05).Conclusions The sensitivity and detection rate of fish bone with MSCT was high and could evaluate the surrounding and complications of the esophagus.MSCT could be used as the first examination of impacted fish bones in the esophagus.     

氧烛对高原夜间睡眠呼吸暂停及SaO_2的影响

目的研究在高原利用氧烛建立富氧室对夜间睡眠呼吸暂停及血氧饱和度(SaO2)的影响。方法8名受试者在海拔3 700 m和5 200 m夜间睡眠,监测常氧和富氧(氧浓度为24%～25%)条件下的呼吸、脉率、SaO2和呼吸暂停次数及暂停时间。结果在海拔3 700 m和5 200 m富氧较常氧下睡眠SaO2增高,脉率降低,有显著性差异(P<0.05或0.001),呼吸频率无统计学意义(P>0.05)。3 700 m和5 200 m常氧下睡眠各有6人出现呼吸暂停,暂停次数依次为3、6、2、10、3、17和2、5、3、7、44、6(次/30 min);呼吸暂停时间,最短分别为6和9 s,最长为15和14.8 s,而富氧条件下未出现呼吸暂停现象。结论高原富氧下睡眠可显著改善周期性呼吸及呼吸暂停,使SaO2显著增高。氧烛在高原供氧有着广泛的社会效益和军事用途。     

高原地区室内空气弥散给氧对血氧饱和度和心率的影响

目的：探讨高原地区空气弥散给氧对SaO2和心率的影响。方法：在海拔4300m地区建立富氧室，第一次实验为不进入富氧室，第二次实验为进入富氧室第1天、2天、3天后，两次实验均做踏阶梯运动。首先检测富氧前及富氧后静息状态下的SaO2和心率，然后进行负荷运动实验，时间为5min，运动终止后，记录Sa02和心率（HRM），接着连续记录第3min及第5min的恢复心率（HRR），算得心率变化值（HRD）=HRM—HRR。结果：负荷运动终止后，第1天、2天、3天的SaO2富氧后比富氧前均有明显升高（P〈0．01）；心率富氧后比富氧前均有明显降低（P〈0．01）；3min及5min恢复心率速度富氧后比富氧前明显加快（P〈0．05）。结论：在高海拔地区建立富氧室可改善机体缺氧状况，提高劳动能力，促进高原习服。     

氧烛对缺氧性肺动脉高压青年血氧饱和度与心率的影响

目的在高海拔地区(5 200 m)利用氧烛建立富氧室观察对缺氧性肺动脉高压移居青年血氧饱和度(SaO2)及心率(HR)的影响。为防治高原缺氧性肺动脉高压,减少高原移居者急慢性高原病的发生,寻觅新的方法和途径。方法选择驻守在海拔5 200 m以上地区1年、经超声心动图和心电图检测拟诊为肺动脉高压的8名受试者在该海拔夜间睡眠时,分别监测常氧和富氧(氧浓度为24%～25%)条件下的SaO2和HR。结果富氧较常氧条件下SaO2增高,有统计学差异(P<0.01);富氧较常氧下HR降低,有统计学差异(P<0.01)。结论用氧烛制作富氧室可显著改善低氧环境条件下肺的氧合效率、提高动脉血氧饱和度,降低心率,从而使人体缺氧状态得以充分改善。     

高压氧对高原移居者脑-体生理能力改善的初步研究

目的 研究高压氧对高原移居者脑一体生理能力改善与保留时间的影响.方法 选择初人海拔3700 m高原的男性健康青年60名,年龄17～23岁,平均(21.3±1.3)岁.其中30人进行高压氧处理,另外30人不做任何处理;高压氧处理的30人又分为A1组(20人)和B1组(10人).未做任何处理的30人也分为2组,即A2组(20人)和B2组(10人).A1组和A2组继续登高直至5000 m以上(5100～5380 m)目的地,第5天在静息状态下实施各项目检测.B1组和B2组在海拔3700 m停留,第5天进行负荷运动10 min后实施各项目检测.采用DDX-200型电脑多功能心理、生理能力测试仪及YZB6型强光源直接眼底镜观察视网膜动态,应用暗房夜光表法检测光觉暗适应功能,ASC-545型血氧仪器检测动脉血氧饱和度.结果 右手左脚和左手右脚交叉动作A1组正确次数显著多于A2组(均为P＜0.01),A1组暗适应时间明显短于A2组(P＜0.05),A1组SaO2显著高于A2组(P＜0.05).视网膜检测结果显示A1组比A2组缺氧程度轻.右手左脚和左手右脚交叉动作B1组正确次数显著多于B2组(P＜0.05),B1组暗适应时间明显短于B2组(P＜0.05),B1组SaO2显著高于B2组(P＜0.05),视网膜检测结果显示B1组比B2组缺氧程度轻.结论 高压氧处理有效地改善和提高了移居海拔3700 m和5000 m以上人员的脑-体生理能力,抗低氧效果显著.     

氧烛对高原人体血氧饱和度及血乳酸的影响

目的观察在高原利用氧烛建立富氧室对移居高原男青年血氧饱和度（SaO2）及血乳酸（BLA）的影响。方法 8名进驻高原1年的受试者在海拔3700 m夜间睡眠,监测其常氧和富氧（氧浓度为24%～25%）条件下的SaO2变化;起床脱离富氧室3 h后空腹采集肘静脉血,检测BLA在富氧前、富氧后的变化。结果富氧较常氧下受试者SaO2增高（P〈0.01）,富氧组BLA与常氧组比较降低（P〈0.01）。结论用氧烛制作富氧室可显著改善人体高原缺氧状态。     

平原人进驻高原后红细胞生成素的变化

目的　探讨红细胞生成素在高原低氧适应机制中的作用。方法　对平原进驻海拔 3 70 0m和气 5 3 80m第 7天及半年的健康青年进行血液促红细胞生成素 (EPO)、血红蛋白 (Hb)及血氧饱和度 (SaO2 )检测 ,并与平原健康青年作对照。结果　进驻高原低氧环境EPO、Hb较平原增高显著 (P <0 .0 5或 0 .0 1 ) ,SaO2 降低非常显著 (P <0 .0 1 )。进驻高原第 7天和半年 ,3 70 0m较 5 3 80mEPO ,Hb降低非常显著 ,SaO2 增高非常显著 (P <0 .0 1 )。进驻 3 70 0m ,第 7天较半年EPO无统计学意义 (P >0 .0 5 ) ,Hb ,SaO2 差异显著 (P <0 .0 5或 0 .0 1 ) ;进驻 5 3 80m ,第 7天较半年EPO ,Hb,SaO2 均有显著性差异 (P <0 .0 5或P <0 .0 1 )。结论　在高原缺氧环境下 ,红细胞生成素调节机制紊乱 ,是导致继发性红细胞增多的一个重要环节。     

海拔3700m富氧室对高原人体运动血气及心率的影响

目的：探讨在3700m高原建立富氧室对机体运动后血气及心率的影响。方法：对海拔3700m高原的10例健康青年在进入富氧室前、后分别进行功率自行车递增负荷运动，检测pH值、二氧化碳分压（PCO2）、氧分压（PO2）、肺泡、动脉氧分压（AaDO2)、血氧饱和度（SaO2)、心率及5min恢复心率；结果：富氧后较富氧前pH增高显著（P＜0．05）；PCO2、PO2、SaO2增高，即刻心率、AaDO2降低，差别有非常显著性（P＜0．01）；恢复心率无统计学差异（P＞0．05）；结论：富氧室能改善高原低氧人体气体交换和心脏工作效能，是一种较为理想的高原供氧途径。     

驻高原武警官兵EQ-5D调查与心血管疾病风险评估

 目的 了解驻高原武警官兵健康质量情况,评估其与缺血性心血管疾病(ischemic cardiovascular diseases,ICVD)发病之间的风险。方法 对武警某驻高原地区的官兵进行欧洲五维健康量表(Europe health-related quality of life questionnaire 5 dimensions,EQ-5D)调查分析与10年缺血性心血管疾病风险评估,探讨驻高原官兵的健康生命质量与ICVD间的相关性。结果 高原组在疼痛不适、焦躁抑郁中的得分分别为(2.75±0.58)、(2.49±0.44),与平原组相比评分较高(P＜0.05);在视觉刻度尺(EQ visual analogue scale,EQ-VAS)中的评分为(73.67±15.36),显著低于平原组(P＜0.05)。同时高原组的吸烟率为55.98%,高血脂症发病率为15.35%,均显著高于平原组(P＜0.05)。结论 驻高原官兵的健康生命质量与心血管健康相关指标及10年IVCD发病率间存在显著的相关性,EQ-5D的调查可反映出官兵潜在的ICVD发病风险,帮助具有相关风险的官兵及早治疗。     

高原习服过程淋巴细胞线粒体DNA含量及氧化损伤变化规律

目的 观察世居平原男性青年高原习服各时程淋巴细胞线粒体能量代谢、线粒体DNA （mtDNA）拷贝数及其氧化损伤的动态变化规律.方法 27名世居平原武警新兵急进高原,分别在移居高原3、7、90 d检测淋巴细胞线粒体膜电位、mtDNA中8-oxodG含量、mtDNA拷贝数和PGC-1α蛋白表达.结果 与平原阶段比较,移居高原3d和7d,膜电位显著降低（P＜0.05）,8-oxodG含量,mtDNA拷贝数和PGC-1α表达显著升高（P＜0.05）;移居高原90 d,mtDNA拷贝数和PGC-1α表达显著降低（P＜0.05）.移居高原90 d与移居高原7d比较,膜电位显著升高（P＜0.05）,8-oxodG含量,mtDNA拷贝数和PGC-1α表达显著降低（P＜0.05）.结论 高原习服初期淋巴细胞能量重构主要依赖于线粒体数量增加,而在高原习服后期主要依赖于单个线粒体健康程度及能量代谢水平提高.     

高压氧对从平原移居高原者脑-体功效的影响

目的 研究高压氧对从平原移居高原者脑一体功效的影响.方法 选择从平原移居海拔3700 m并已习服的健康男青年20名,平均分为高压氧组和对照组.高压氧组行2次高压氧预处理,于第2次处理后2 h分别检测2组的脉搏和动脉血氧饱和度等生理指标,同时进行生理功能测试.结果 高压氧组的血氧饱和度(93.6± 2.2)%高于对照组(90.3 ±2.4)%,脉搏(83.7±14.4)次/min低于对照组(75.4±13.3)次/min,高压氧组[总次数(67.89 ±10.28),平均时间(149.89±24.49)ms]脑-体功效水平高于对照组[总次数(52.89±3.91),平均时间(189.67±12.43)ms],2组间差异有统计学意义(P＜0.01).结论 高压氧可改善从平原移居高原者在低氧条件下的生理功能,提高脑-体功效水平.