Results 61 to 70 of about 419,175 (164)

Sex-dependent influence of endogenous estrogen in pulmonary hypertension [PDF]

open access: yes, 2014
Rationale: The incidence of pulmonary arterial hypertension (PAH) is greater in women suggesting estrogens may play a role in the disease pathogenesis. Experimentally, in males exogenously administered estrogen can protect against PH; however in models ...
Audrey F. Wright   +17 more
core   +1 more source

Haemodynamic definitions and updated clinical classification of pulmonary hypertension

open access: yesEuropean Respiratory Journal, 2019
Since the 1st World Symposium on Pulmonary Hypertension (WSPH) in 1973, pulmonary hypertension (PH) has been arbitrarily defined as mean pulmonary arterial pressure (mPAP) ≥25 mmHg at rest, measured by right heart catheterisation. Recent data from normal
G. Simonneau   +7 more
semanticscholar   +1 more source

Demographics and Outcomes of Pulmonary Hypertension Patients in United States Emergency Departments [PDF]

open access: yes, 2020
Introduction: Pulmonary hypertension (PH) is a common, yet under-diagnosed, contributor to morbidity and mortality. Our objective was to characterize the prevalence of PH among adult patients presenting to United States (US) emergency departments (ED ...
Camargo Jr., Carlos A.   +2 more
core  

Right ventricular outflow tract velocity time integral-to-pulmonary artery systolic pressure ratio: a non-invasive metric of pulmonary arterial compliance differs across the spectrum of pulmonary hypertension. [PDF]

open access: yes, 2019
Pulmonary arterial compliance (PAC), invasively assessed by the ratio of stroke volume to pulmonary arterial (PA) pulse pressure, is a sensitive marker of right ventricular (RV)-PA coupling that differs across the spectrum of pulmonary hypertension (PH ...
Bhattacharya, Priyanka T.   +15 more
core   +2 more sources

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

Clinical trial design and new therapies for pulmonary arterial hypertension

open access: yesEuropean Respiratory Journal, 2019
Until 20 years ago the treatment of pulmonary arterial hypertension (PAH) was based on case reports and small series, and was largely ineffectual. As a deeper understanding of the pathogenesis and pathophysiology of PAH evolved over the subsequent two ...
O. Sitbon   +9 more
semanticscholar   +1 more source

Riociguat for the treatment of chronic thromboembolic pulmonary hypertension. [PDF]

open access: yes, 2013
BACKGROUND: Riociguat, a member of a new class of compounds (soluble guanylate cyclase stimulators), has been shown in previous clinical studies to be beneficial in the treatment of chronic thromboembolic pulmonary hypertension. METHODS: In this phase 3,
CHEST-1 Study Group,   +13 more
core   +1 more source

Role of extracellular matrix in the pathogenesis of pulmonary arterial hypertension.

open access: yesAmerican Journal of Physiology. Heart and Circulatory Physiology, 2018
Pulmonary arterial hypertension (PAH) is characterized by remodeling of the extracellular matrix (ECM) of the pulmonary arteries with increased collagen deposition, cross-linkage of collagen, and breakdown of elastic laminae.
T. Thenappan, Stephen Y. Chan, E. Weir
semanticscholar   +1 more source

Osteopontin lung gene expression is a marker of disease severity in pulmonary arterial hypertension

open access: yesRespirology (Carlton South. Print), 2019
Osteopontin (OPN) is a pleiotropic cytokine involved in the proliferation of pulmonary artery smooth muscle cells (PA‐SMC). OPN is upregulated in the lungs of patients with pulmonary hypertension (PH) associated with pulmonary fibrosis, suggesting that ...
M. Mura   +3 more
semanticscholar   +1 more source

A potential therapeutic role for angiotensin-converting enzyme 2 in human pulmonary arterial hypertension

open access: yesEuropean Respiratory Journal, 2018
Pulmonary arterial hypertension (PAH) is a deadly disease with no cure. Alternate conversion of angiotensin II (AngII) to angiotensin-(1–7) (Ang-(1–7)) by angiotensin-converting enzyme 2 (ACE2) resulting in Mas receptor (Mas1) activation improves rodent ...
A. Hemnes   +21 more
semanticscholar   +1 more source

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