Several studies suggest that intrathoracic blood volume index might be superior to central venous pressure with regard to preload assessment. 多项研究认为在评估前负荷上胸腔内血容量指数要优于中心静脉压。
Mechanism Study of Effects of the Intrathoracic Pressure on the Velocity of Tricuspid Regurgitation and Estimation of Pulmonary Artery Pressure 胸压对三尖瓣反流速度和肺动脉压测定影响的机制研究
Intrathoracic Negative Pressure Affects Inferior Vena Cava Blood Flow in Normal Person 胸内负压对正常人下腔静脉血流的影响
Therefore, intrathoracic blood volume index appears to be more appropriate for volume management in necrotizing pancreatitis than central venous pressure or hematocrit. 因此,胸腔内血容量指数比中心静脉压和红细胞压积更适合应用在坏死性胰腺炎患者的容量管理。
Objective: To study the intrathoracic negative pressure affecting inferior vena cava blood flow. 目的:观察胸内压力变化对正常人下腔静脉血流的影响。
To investigate the mechanism of the different influence ofthe intrathoracic pressure change ( ITPC) on the two ventricular fillings and the motion of interventricular septum. 建立模拟实验模型,观察胸压变化对左、右心充盈及室间隔运动的影响,从力学角度验证我们提出的呼吸影响心功能机制新假说;
Clinical Study on the Relation Between Changes of CVP and Intrathoracic Pressure During Thoracotomy 开胸术中中心静脉压变化及其与胸内压的关系
Hydromechanical principle of the different actions of the intrathoracic pressure changes on the two venous return systems 胸压变化对两个静脉回流系统不同作用的力学原理
Conclusions: ( 1) Anti reflux therapy enhanced the esophageal body basic pressure and reduced intrathoracic negative pressure to prevent airway collapse and improve sleep/ hypopnea. 结论:(1)抗反流治疗可能通过提高食管体部基础压,使胸内负压下降,有利于防止气道塌陷。
Results: Negative intrathoracic pressure greatly affected Doppler signals of IVC flow velocity and the right ventricular filling. 结果:胸内负压的变化对下腔静脉血流的影响非常显著;
Improvement of Measurement of Intrathoracic Pressure in Guinea-Pigs 豚鼠胸内压测定方法的改进
Results Paradoxical respiration occurred and the intrathoracic pressure kept negative but with no bulge of malactic tissues after the fulfilment of the floating thoracic wall models. 结果浮动胸壁模型完成后,均出现反常呼吸,胸腔内压力为负值,未出现软化部分膨出;
Meanwhile, to discuss the feasibility of taking the respiratory variation of intrathoracic pressure as blood pump to substitute the right cardiac function that the postoperative patients of Fontan who have not. 同时探讨利用呼吸性胸压变化作为血泵,替代Fontan术后病人缺如的右心功能的可行性。
When animals were ejected into the air flow, their intrathoracic pressure ( p_x) and intraabdominal pressure ( p_f) rose rapidly, but correlations of p_x and p_f with q_c were insignificant. 当动物弹射进入气流时,它们的胸内压(Px)和腹内压(Pf)迅速升高,但Px和Pf与qc的相关不显著。
AIM To investigate the mechanism of the different influences of the intrathoracic pressure change ( ITPC) on the two venous return systems. 目的研究胸压变化对两侧静脉回流影响不同的力学原理。