Results 21 to 30 of about 345,762 (256)
Pulmonary Circulation, 2020 Pulmonary arterial hypertension is a fatal disease, where death is associated with right heart failure and reduced cardiorespiratory reserve. The Sugen 5416, hypoxia and normoxia Fischer rat model mimics human pulmonary arterial hypertension, although ...
Ji Young Lee +5 more
doaj +1 more source
Intensive Care Medicine Experimental, 2021 Background The effects of selective pulmonary vascular tone alterations on cardiac preload have not been previously examined. Therefore, we evaluated whether changing pulmonary vascular tone either by hypoxia or the inhalation of aerosolized prostacyclin
Jaap Jan Vos +3 more
doaj +1 more source
Cardiopulmonary interactions in left heart failure
Frontiers in Physiology, 2023 The primary impact of ventilation and ventilatory efforts on left ventricular (LV) function in left ventricular dysfunction relate to how changes in intrathoracic pressure (ITP) alter the pressure gradients for venous return into the chest and LV ...
Andrea C. Alvarado, Michael R. Pinsky
doaj +1 more source
Do Pulmonary Hemodynamics Change After Effective Lung Volume Reduction Surgery for Emphysema?
Kaohsiung Journal of Medical Sciences, 2004 The improvement in lung function, exercise test, blood gas levels, and symptoms in emphysema patients after volume reduction surgery is a result of improvements in breathing mechanics.
Shah-Hwa Chou +2 more
doaj +1 more source
Chest dual-energy CT to assess the effects of steroids on lung function in severe COVID-19 patients
Critical Care, 2022 Background Steroids have been shown to reduce inflammation, hypoxic pulmonary vasoconstriction (HPV) and lung edema. Based on evidence from clinical trials, steroids are widely used in severe COVID-19.
Gaetano Perchiazzi +6 more
doaj +1 more source
Methodology of True Pulmonary Blood Volume Determination [PDF]
Circulation, 1966 "True" pulmonary blood volume has been determined by three indicator-dilution methods in 96 subjects. In two methods a right or left ventricular mixing chamber is interposed between the injection and sampling sites while in the third such a mixing chamber is absent.
P, Samet +3 more
openaire +2 more sources
Impaired Distensibility of the Proximal Aorta in Fetuses With Tetralogy of Fallot
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023 Background Increased aortic wall stiffness, which even persists after repair, has been reported in patients with tetralogy of Fallot (TOF). We aimed to observe the distensibility of the ascending aorta and descending aorta in fetuses with TOF and explore
Dan Zhou +6 more
doaj +1 more source
Pulmonary Blood Volume in Experimental Unilateral Pulmonary-Artery Occlusion [PDF]
Circulation Research, 1961 In a series of 11 dogs in which the left pulmonary artery was ligated, the blood from the occluded lung was absorbed by the remainder of the vascular bed and, consequently, there was no significant alteration in the pulmonary blood volume. This adaptation took place, apparently, with only slight modifications in the circulation time and the pressure of
P, ARAMENDIA, J D, FERMOSO, A C, TAQUINI
openaire +2 more sources
Reproducibility of pulmonary blood flow measurements by phase-contrast MRI using different 1.5 T MR scanners at two institutions [PDF]
Acta Radiologica Open, 2017 Background Magnetic resonance imaging (MRI) can be beneficial for diagnosis of disease by offering quantitative information. However, reproducibility can be a major problem when there is a numerical threshold in multi-institution, multi-vendor situations.
Rin Iraha +4 more
doaj +1 more source
PLoS ONE, 2022 BackgroundNeutrophil activation drives lung complications after cardiopulmonary bypass (CPB). Evidence suggests the healthy, ventilated lung may beneficially re-condition pro-inflammatory neutrophils.
Wendy Funston +13 more
doaj +1 more source