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  • stenosis
  • For some patients, progression from stenosis to occlusion can be asymptomatic due largely to a sufficient time course to develop these collaterals. (uptodate.com)
  • however, it is still unclear whether its presence is in conflict with stenting of the renal arteries to treat associated renal stenosis. (biomedsearch.com)
  • The incidence of clinically important renal artery stenosis is not well defined in patients with symptomatic peripheral arterial disease. (biomedsearch.com)
  • OBJECTIVE: The aim of this study was to evaluate the differences in the tardus-parvus pattern between atherosclerotic and nonatherosclerotic renal artery stenosis (RAS) and to explore the causes of these differences. (biomedsearch.com)
  • bowel
  • Acute mesenteric arterial occlusion is a curable disease, provided it is diagnosed and treated before irreversible changes occur in the ischemic bowel. (biomedsearch.com)
  • The superior mesenteric artery, via its branches, supplies blood perfusion to the pancreas, a portion of the stomach, the small intestines (duodenum, jejunum, and ileum), and portions of the large bowel. (vascularhealthclinics.org)
  • As opposed to traditional imaging modalities like upper gastrointestinal and mesenteric arteriography, which depict either the bowel or vasculature respectively, CT enables direct visualization of obstructed bowel owing to duodenal compression by the SMA. (ctisus.com)
  • However, because certain acute events may change to a chronic condition, a clear-cut classification of ischemic bowel disease using this twocategory system is not always applicable. (spotidoc.com)
  • Therefore, the etiology of vessel occlusion/hypoperfusion may be the basis for subclassification of ischemic bowel disease. (spotidoc.com)
  • obstruction
  • It can be secondary to occlusive or nonocclusive obstruction of the arteries or can be caused by obstruction of venous outflow. (statpearls.com)
  • Originally described by Rokitansky in 1861, superior mesenteric artery syndrome (SMAS) is a relatively rare condition caused by obstruction of the third portion of the duodenum between the SMA and aorta. (ctisus.com)
  • Treatment of acute ischemia may include stenting or medications to break down the clot provided at the site of obstruction by interventional radiology . (wikipedia.org)
  • vein
  • Agreement was good or excellent for the hepatic artery (kappa = 0.78), the SMA (kappa = 0.65), the splenic artery (kappa = 0.70), the portal vein (kappa = 1.0), the superior mesenteric vein (kappa = 0.88), and the splenic vein (kappa = 0.75). (acr.org)
  • There are four mechanisms by which poor blood flow occurs: a blood clot from elsewhere getting lodged in an artery , a new blood clot forming in an artery , a blood clot forming in the superior mesenteric vein , and insufficient blood flow due to low blood pressure or spasms of arteries . (wikipedia.org)
  • aorta
  • Large arteries eg aorta have 'plug' flow with uniform flow from centre to near vessel wall. (radnotes.co.nz)
  • Acute Intramural Hematoma of the Descending Aorta Treated with Stent Graft Repair Is Associated with a Better Prognosis. (amedeo.com)
  • Upper esophageal long axis view (110°) of the mid-ascending aorta (AAo) imaged through the right pulmonary artery (RPA). (asahq.org)
  • mortality
  • Despite all the advances of modern medicine, the mortality for acute mesenteric ischemia has remained 70-90% for over 25 years. (buckeyesurgeon.com)
  • Ischemia-reperfusion induced acute kidney injury (IR-AKI) is widely used as a model of AKI in mice, but results are often quite variable with high, often unreported mortality rates that may confound analyses. (jove.com)
  • intracranial
  • We performed mechanical thrombectomy using the Solitaire FR revascularization device, a self-expanding and fully retrievable stent-based thrombectomy system for acute intracranial large artery occlusion, combined with manual aspiration through a 6F guiding sheath placed at the SMA origin via a right brachial approach. (ovid.com)
  • computed tomography
  • Zangos S, Steenburg S, Phillips D, Kerl M, Nguyen S, Herzog C et al (2007) Acute abdomen: added diagnostic value of coronal reformations with 64-slice multidetector row computed tomography. (springermedizin.de)
  • elastic arteries
  • Vascular dysfunction is an important non-traditional risk factor, characterized by vascular endothelial dysfunction (most commonly assessed as impaired endothelium-dependent dilation [EDD]) and stiffening of the large elastic arteries. (jove.com)