Results 51 to 60 of about 2,151,759 (386)

Quantification of Bronchial Circulation Perfusion in Rats [PDF]

open access: yes, 2004
The bronchial circulation is thought to be the primary blood supply for pulmonary carcinomas. Thus, we have developed a method for imaging and quantifying changes in perfusion in the rat lung due to development of the bronchial circulation.
Clough, Anne V.   +5 more
core   +2 more sources

The efficacy and safety of pulmonary vasodilators in patients with Fontan circulation: a meta-analysis of randomized controlled trials

open access: yesPulmonary Circulation, 2018
No previous meta-analysis has evaluated the efficacy and safety of pulmonary vasodilators in Fontan physiology. Recent relative trials have obtained conflicting results regarding improvements in peak oxygen consumption; the relatively small number of ...
Wuwan Wang   +9 more
semanticscholar   +1 more source

Redox Regulation of Ion Channels in the Pulmonary Circulation

open access: yesAntioxidants and Redox Signaling, 2015
Significance: The pulmonary circulation is a low-pressure, low-resistance, highly compliant vasculature. In contrast to the systemic circulation, it is not primarily regulated by a central nervous control mechanism.
A. Olschewski, E. Weir
semanticscholar   +1 more source

The role of endothelin-1 in pulmonary arterial hypertension. [PDF]

open access: yes, 2014
Pulmonary arterial hypertension (PAH) is a rare but debilitating disease, which if left untreated rapidly progresses to right ventricular failure and eventually death. In the quest to understand the pathogenesis of this disease differences in the profile,
Chester, AH, Yacoub, MH
core   +1 more source

Summary of recommendations for the haemodynamic and angiographic assessment of the pulmonary circulation. Joint statement of the Polish Cardiac Society's Working Group on Pulmonary Circulation and Association of Cardiovascular Interventions.

open access: yesKardiologia polska, 2015
Right heart catheterisation (RHC) is the 'gold standard' for haemodynamic assessment of the pulmonary circulation. For the diagnosis of pulmonary hypertension (PH), the guidelines of the European Society of Cardiology require a mean pulmonary arterial ...
M. Kurzyna   +9 more
semanticscholar   +1 more source

Dobutamine stress MRI in pulmonary hypertension: relationships between stress pulmonary artery relative area change, RV performance, and 10-year survival [PDF]

open access: yes, 2017
In pulmonary hypertension (PH), right ventricular (RV) performance determines survival. Pulmonary artery (PA) stiffening is an important biomechanical event in PH and also predicts survival based on the PA relative area change (RAC) measured at rest ...
Bellofiore, Alessandro   +6 more
core   +1 more source

Transition from Ambrisentan to Bosentan in Pulmonary Arterial Hypertension: A Single-Center Prospective Study

open access: yesCanadian Respiratory Journal, 2018
Background and objective: Two endothelin receptor antagonists (ETRAs), bosentan and ambrisentan, are approved for patients with pulmonary arterial hypertension (PAH).
Su-Gang Gong   +10 more
doaj   +1 more source

Right heart remodeling in end-stage pulmonary arterial hypertension and the impact of treatment intensity

open access: yesFrontiers in Cardiovascular Medicine
BackgroundResearch on the limits of compensatory right heart remodeling and the effects of pulmonary artery hypertension (PAH) targeted therapies on these mechanisms is limited.MethodChest x-ray and echocardiographic data were collected from 143 deceased
Su-Gang Gong   +14 more
doaj   +1 more source

The molecular genetics and cellular mechanisms underlying pulmonary arterial hypertension [PDF]

open access: yes, 2012
Pulmonary arterial hypertension (PAH) is an incurable disorder clinically characterised by a sustained elevation of mean arterial pressure in the absence of systemic involvement.
Machado, Rajiv
core   +2 more sources

Prognostic Value of Gamma-Glutamyltransferase in Male Patients With Idiopathic Pulmonary Arterial Hypertension

open access: yesFrontiers in Cardiovascular Medicine, 2020
Background: The elevated gamma-glutamyltransferase (GGT) activity is regarded as an indicator of cardiovascular disease, with males having higher values than females.
Gang-Hua Lu   +9 more
doaj   +1 more source

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