vasa vasorum


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Noun1.vasa vasorum - any small blood vessel ramifying on the outside of a major artery or veinvasa vasorum - any small blood vessel ramifying on the outside of a major artery or vein
blood vessel - a vessel in which blood circulates
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This study used Matrigel basement membrane matrix with many different growth factors to promote vasa vasorum neovascularization and extenuate the hypoxia to improve remodeling.
The second mechanism is by vasculitis in the vasa vasorum of the cochlear nerve by a secondary immune mechanism.
Objectively testing using PORH for disturbed microcirculatory function and/or pulse volume recordings (PVR; microvascular disease of the vasa vasorum in macrovessels) can also demonstrate the effects of abnormal vascular glycation (loss of microvascular compliance).
Se ha documentado elevacion de reactantes de fase aguda en pacientes con fibrosis retroperitoneal idiopatica, generando un proceso inflamatorio con compromiso a nivel de aorta abdominal, arterias iliacas comunes, fenomenos vasculiticos en la vasa vasorum de la adventicia de la aorta y vasos retroperitoneales periaorticos de pequeno calibre.
3] Hughes and Stovin hypothesized that the structural changes in the bronchial artery causes inadequate nutrition to the pulmonary artery via the vasa vasorum, which in turn lead to inflammation and damage to the elastic tissue and cause arterial aneurysm.
Although the mechanisms underlying vascular injury after radiation therapy are not fully established various factors including early atherosclerosis vasa vasorum degeneration and arterial wall necrosis have been suggested.
3,7,11) Hughes and Stovin suggested that the aneurysms develop due the degenerative changes in the walls of the bronchial arteries, with subsequent changes in the vasa vasorum of the pulmonary artery.
Inflammation of vasa vasorum may cause aneurysm formation, most commonly in the abdominal aorta.
In addition, the tunica adventitia of large arteries and veins contains a system of vessels, called vasa vasorum, that supply blood to the vascular walls themselves, as well as a network of autonomic nerves, called nervi vascularis, that control contraction of the smooth muscle in the vessel walls.
In the presence of atheroma, the blood vessels in the vasa vasorum are thought to be increased and more fragile and, therefore, are more susceptible to rupture.
6) Another proposed mechanism is disruption of the vasa vasorum in the coronary artery leading to intramedial hemorrhage and subsequent dissection without an intimal tear.