نتایج جستجو برای: thoracic aorta
تعداد نتایج: 103704 فیلتر نتایج به سال:
introduction: our previous studies showed that hydroalcoholic extract of leaf of vitis vinifera relaxes the phenylephrine-induced contraction in rat thoracic aorta. this effect was dependent on endothelial integrity and no-cgmp system. the vasorelaxant effect of extract was much lesser on kcl-induced contraction. we, therefore, postulated that k+ channels are involved. the main aim of the prese...
Objective(s): Cardiovascular disease is a leading cause of morbimortality with over half cardiovascular events occurring in the asymptomatic population by traditional risk stratification. This preliminary study aimed to evaluate systemic plaque vulnerability in patients with prior Coronary Artery Disease (CAD) with a single Whole Body [FDG] PET-CT scan in terms of plaq...
Introduction: Our previous studies showed that hydroalcoholic extract of leaf of Vitis vinifera relaxes the phenylephrine-induced contraction in rat thoracic aorta. This effect was dependent on endothelial integrity and NO-cGMP system. The vasorelaxant effect of extract was much lesser on KCl-induced contraction. We, therefore, postulated that K+ channels are involved. The main aim of the pr...
We report a case of 18-year-old female patient with large patent ductus arteriosus (PDA)-preductal coarctation of descending thoracic aorta. She underwent large PDA closure with a prosthetic graft from ascending aorta to descending thoracic aorta by mid-sternotomy on cardiopulmonary bypass machine under total hypothermic circulatory arrest.
Computed tomography (СТ) with contrast enhancement allows a detailed anatomical description of feline thoracic aorta. For this purpose, 14 sexually mature clinically healthy domestic cats weighing 2.9 to 4.0 kg were investigated. The animals were anaesthetized and fixed in dorsal recumbency on a СТ table (Tomoscan, CX/Q, Siemens). Consequent transversal 5 mm cross-sections were made along the t...
Morphologic observations suggest that the inner layers of the thoracic aorta in man and dog are avascular and the outer layers have vasa vasorum. It appears that vasa vasorum are essential in the thoracic aorta because their interruption produces medial necrosis. These experiments provide the first measurements of blood flow through aortic vasa vasorum and examine physiologic regulation of that...
OBJECTIVES To determine normal limits for ascending and descending thoracic aorta diameters in a large population of asymptomatic, low-risk adult subjects. BACKGROUND Assessment of aortic size is possible from gated noncontrast computed tomography (CT) scans obtained for coronary calcium measurements. However, normal limits for aortic size by these studies have yet to be defined. METHODS In...
INTRODUCTION Aneurysm is a disease in which an area of arterial wall is expanded as the result of the decreased resistance of the wall structure against the internal pressure. In most cases the wall is fatally ruptured. Aneurysm is one of the serious diseases of circulatory system, and the thoracic aorta is known to be a site where aneurysms frequently develop. The thoracic aorta consists of th...
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