Results 31 to 40 of about 9,654 (252)

Interventional treatment for pulmonary venous stenosis due to fibrosing mediastinitis: a case report

open access: yesFrontiers in Cardiovascular Medicine
IntroductionFibrosing mediastinitis is a rare syndrome caused by the abnormal proliferation of mediastinal fibrous tissue. It often causes superior vena cava syndrome, bronchial stenosis, pulmonary vascular stenosis, etc.Patient presentationAn elderly ...
Runfeng Gao   +4 more
doaj   +1 more source

LES of non-Newtonian physiological blood flow in a model of arterial stenosis [PDF]

open access: yes, 2012
Large Eddy Simulation (LES) is performed to study the physiological pulsatile transition-to-turbulent non-Newtonian blood flow through a 3D model of arterial stenosis by using five different blood viscosity models: (i) Power-law, (ii) Carreau, (iii ...
Molla, M.M.   +3 more
core   +1 more source

The many faces and outcomes of pulmonary vein stenosis in early childhood.

open access: yes, 2021
Pulmonary vein stenosis is a rare and poorly understood condition causing obstruction of the large pulmonary veins and of blood flow from the lungs to the left atrium.
Tilman Humpl   +5 more
core   +1 more source

Combination Chemotherapy in Severe Pulmonary Vein Stenosis—A Case Series

open access: yes, 2023
Pulmonary vein stenosis results from a proliferative process that leads to the progressive obstruction of venous return to the left atrium. It is often resistant to catheterization and surgical based interventions and is frequently fatal when encountered
David Nykanen   +5 more
core   +1 more source

Anatomic, histopathologic, and echocardiographic features in a dog with an atypical pulmonary valve stenosis with a fibrous band of tissue and a patent ductus arteriosus

open access: yesActa Veterinaria Scandinavica, 2017
Background Congenital pulmonary valve stenosis and patent ductus arteriosus are common congenital heart defects in dogs. However, concurrence of atypical pulmonary valve stenosis and patent ductus arteriosus is uncommon.
Hakyoung Yoon   +3 more
doaj   +1 more source

Pulmonary Vein Stenosis—Evolving Surgical Management of a Challenging Disease

open access: yes, 2021
Pulmonary vein stenosis (PVS) is an extremely challenging clinical problem in congenital heart disease. It has traditionally required multimodal therapy given its complex underlying pathophysiology.
Christopher W. Baird   +2 more
core   +1 more source

Non-Newtonian Effects of Blood Flow on Hemodynamics in Pulmonary Stenosis: Numerical Simulation

open access: yesApplied Bionics and Biomechanics, 2023
This paper aims to explore the construction of an individualized pulmonary artery stenosis model based on computed tomography (CT) images. The stenosis model is simulated using a porous medium, and the numerical simulation is carried out by computational
Fan He, Xinyu Wang, Lu Hua, Tingting Guo
doaj   +1 more source

Dilatation of the Pulmonary Artery in Pulmonary Stenosis [PDF]

open access: yesCirculation, 1956
Dilatation of the pulmonary artery occurs frequently in cases of valvular pulmonary stenosis and is often called "poststenotic." We determined the diameter of the pulmonary artery angiocardiographically and compared this with the data obtained by heart catheterization in cases of pulmonary stenosis and of idiopathic dilatation of the pulmonary artery ...
openaire   +3 more sources

Critical Pulmonary Stenosis

open access: yesJournal of Interventional Cardiology, 2001
Critical pulmonary stenosis causes cyanosis and can be potentially lethal in the neonate. Initial treatment includes general resuscitation and infusion of prostaglandin E1 to dilate the ductus. The diagnosis is usually made echocardiographically, but a right ventriculogram in the outflow tract may be necessary in some patients with only a tiny valve ...
openaire   +2 more sources

Prognostic Significance of Computed Tomography Findings in Pulmonary Vein Stenosis

open access: yes, 2021
(1) Pulmonary vein stenosis (PVS) can be a severe, progressive disease with lung involvement. We aimed to characterize findings by computed tomography (CT) and identify factors associated with death; (2) Veins and lung segments were classified into five ...
Rebecca S. Beroukhim   +3 more
core   +1 more source

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