Objective Lung injury occurred during cardiopulmonary bypass as a result of both ischemic reperfusion injury and systemic inflammatory response is critical for patients’recovery. This study was designed to establish ...Objective Lung injury occurred during cardiopulmonary bypass as a result of both ischemic reperfusion injury and systemic inflammatory response is critical for patients’recovery. This study was designed to establish a convenient and appropriate mode for pulmonary arteryperfusion and evaluate its effects on the展开更多
Objective To investigate whether lung inflation during cardiopulmonary by -pass (CPB) surgeryfor congenital heart disease is needed to maintain adequate lung mechanics and surfactant phospholipidproduction. Methods Th...Objective To investigate whether lung inflation during cardiopulmonary by -pass (CPB) surgeryfor congenital heart disease is needed to maintain adequate lung mechanics and surfactant phospholipidproduction. Methods Thirty patients (2～10 year) with atrial or ventricular septal defects were randomly dividedinto 3 groups. group I (control group). IPPV; group Ⅱ： PEEP= 0.392kpa; group Ⅲ: IPPV and lungs inflated with0.392kPa during CPB. Results Crs was measured and airway aspirates were obtained. At the end of surgery,compared with the other 2 groups Crs, SatPC/TP and SatPC/TPL was decreased significantly in group I andlower than its baseline (P<0.05). Conclusio Use of PEEP and lung inflation during open heart surgery inchildren was more effective to improve lung function and surfactant phospholipid production.展开更多
建立了自适应循环发动机与进气道的流量匹配数学模型,提出了一种可行的自适应循环发动机总体性能设计方法,并以此为基础对采用FLADE(Fan on Blade)的自适应循环发动机的设计参数选取和性能优化开展了研究。结果表明,自适应循环发动机性...建立了自适应循环发动机与进气道的流量匹配数学模型,提出了一种可行的自适应循环发动机总体性能设计方法,并以此为基础对采用FLADE(Fan on Blade)的自适应循环发动机的设计参数选取和性能优化开展了研究。结果表明,自适应循环发动机性能设计,需综合考虑超声速进气道高空大飞行马赫数设计点和发动机地面静止起飞设计点的进发流量匹配需求;发动机设计点FLADE涵道比取值,应随着进气道设计马赫数及该飞行状态下冷却用气需求量的增加而增大。展开更多
文摘Objective Lung injury occurred during cardiopulmonary bypass as a result of both ischemic reperfusion injury and systemic inflammatory response is critical for patients’recovery. This study was designed to establish a convenient and appropriate mode for pulmonary arteryperfusion and evaluate its effects on the
文摘Objective To investigate whether lung inflation during cardiopulmonary by -pass (CPB) surgeryfor congenital heart disease is needed to maintain adequate lung mechanics and surfactant phospholipidproduction. Methods Thirty patients (2～10 year) with atrial or ventricular septal defects were randomly dividedinto 3 groups. group I (control group). IPPV; group Ⅱ： PEEP= 0.392kpa; group Ⅲ: IPPV and lungs inflated with0.392kPa during CPB. Results Crs was measured and airway aspirates were obtained. At the end of surgery,compared with the other 2 groups Crs, SatPC/TP and SatPC/TPL was decreased significantly in group I andlower than its baseline (P<0.05). Conclusio Use of PEEP and lung inflation during open heart surgery inchildren was more effective to improve lung function and surfactant phospholipid production.
文摘建立了自适应循环发动机与进气道的流量匹配数学模型,提出了一种可行的自适应循环发动机总体性能设计方法,并以此为基础对采用FLADE(Fan on Blade)的自适应循环发动机的设计参数选取和性能优化开展了研究。结果表明,自适应循环发动机性能设计,需综合考虑超声速进气道高空大飞行马赫数设计点和发动机地面静止起飞设计点的进发流量匹配需求;发动机设计点FLADE涵道比取值,应随着进气道设计马赫数及该飞行状态下冷却用气需求量的增加而增大。
