Search results for "Artery"
showing 10 items of 2026 documents
Bilateral vertebral artery dissection, agenesis of both ICAs, and connective tissue aberrations
2013
A 35-year-old woman presented with acute signs of stroke (appendix e-1 on the Neurology® Web site at [www.neurology.org][1]). After initial CT with angiography, MRI with time-of-flight angiography confirmed agenesis of both internal carotid arteries (ICAs; figure 1A). It revealed bilateral vertebral artery (VA) dissections and ischemias in both middle artery territories (figure 1, A–E). Skin biopsy microscopy (figure 2) was consistent with ultrastructural connective tissue disease (uCTD), for which no further evidence was found apart from mild hypermobility of the finger joints. The underlying uCTD with structural instability of the arterial walls and the increased blood flow in the vertebr…
Basilar Artery Occlusion and the Dense Artery Sign in the Newborn
1998
A child with basilar artery occlusion in the neonatal period is reported. The occlusion was documented by unenhanced computed tomography performed in the neonatal period demonstrating a “dense” artery at the tip of the basilar artery. The pattern of cerebral damage on MRI scan at 10 years of age confirmed the site of the vascular occlusion. The evidence suggests that embolization was the operating pathogenic mechanism of cerebral vascular occlusion. Neonatal arterial thrombosis involving the carotid circulation has been well documented and may be due to many pathological factors including direct trauma to the carotid artery and embolization from remote sites. Thrombosis of the vertebral art…
Impact of Thoracic Endografting on the Hemodynamics of the Native Aorta: Pre- and Postoperative Assessments of Wall Shear Stress and Vorticity Using …
2021
Purpose To quantify the hemodynamic consequences of thoracic endovascular aortic repair (TEVAR) by comparing the preoperative and postoperative wall shear stress (WSS) and vorticity profiles on computational fluid dynamics (CFD) simulations. Materials and Methods The pre- and postoperative computed tomography (CT) scans from 20 consecutive patients (median age 69 years, range 20–87) treated for different thoracic aortic pathologies (11 aneurysms, 5 false aneurysms, 3 penetrating ulcers, and 1 traumatic aortic rupture) were segmented to construct patient-specific CFD models using a meshless code. The simulations were run over the cardiac cycle, and the WSS and vorticity values measured at th…
Laparoscopic Management of External Iliac Artery Injury Using Yasargil Clamps and Intracorporeal Suture
2011
Presented is a case report of laparoscopic repair of an external iliac artery injury using titanium Yasargil clamps and intracorporeal suture during lymphadenectomy. Yasargil clamps were introduced and placed, 1 distal and 1 proximal to the lesion. The vascular injury site was identified and repaired using intracorporeal sutures. Laparoscopic staging was completed successfully. No sign of thrombosis or vascular occlusion was detected. The patient was discharged on postoperative day 4 to receive adjuvant therapy. Laparotomy is the accepted way of managing major vascular injuries during laparoscopy. However, in controlled circumstances, with availability of Yasargil clamps and a surgeon exper…
Symmetrical Infarction of the Cervical Spinal Cord Due to Spontaneous Bilateral Vertebral Artery Dissection
1998
To the Editor: Vertebral artery (VA) dissection is a well-known cause of vertebrobasilar ischemia in young people and may be due to preceding chiropractic maneuvers, cystic medial necrosis, mucopolysaccharidosis and reticular fiber diseases, vasculitis,1 2 or a yet-unknown arteriopathy.3 Common findings in VA dissection are unilateral or bilateral neck pain associated with cerebellar and brain stem (usually medullary) infarctions,2 3 which are rarely associated with clinical signs of spinal cord lesions.4 5 6 Recently, 1 patient each was described with bilateral spinal cord infarction7 and Brown-Sequard’s syndrome8 as the sole manifestation of spontaneous unilateral VA dissection. We add an…
Quantifying stenosis in renal arteriograms: a fuzzy syntactic analysis.
1999
AbstractThe introduction of fuzzy logic improves a system for the automatic quantification of renal artery lesions seen in digital subtraction angiograms. A two-step approach has been followed. An earlier system based on non-fuzzy syntactic analysis provided a clear symbolic description of the stenotic lesions. Although this system worked correctly, it did not take into account the variability and uncertainty inherent to image processing and to knowledge on the reference diameter. This system has been improved by the introduction of fuzzy logic in the representation of the reference diameter. It provides a description of the stenosis in terms of fuzzy quantities. To illustrate the benefits …
Effectiveness of a physiotherapy and nutrition program in patients with coronary artery disease: randomized controlled trial
2021
Abstract Funding Acknowledgements Type of funding sources: None. Introduction. Dietary and exercise interventions are effective strategies for improving physical and nutritional status of patients with coronary artery disease (CAD). However, few studies have applied a combined exercise protocol based on high intensity interval training (HIIT) and dietary education in patients with CAD with percutaneous coronary intervention (PCI). Purpose This study researches the effectiveness of a multidisciplinary program based in HIIT with dietary education (DEHIIT) in comparison with only HIIT, on adherence to Mediterranean diet in CAD patients with PCI. Methods. A prospective, assessor-blinded, parall…
Multidisciplinary program based in physiotherapy and nutrition in coronary artery disease patients: randomized controlled trial
2021
Abstract Funding Acknowledgements Type of funding sources: None. Introduction. The interventions on eating habits and exercise in physiotherapy programs are usually recommended in coronary artery disease (CAD), since they are beneficial to improve physical and nutritional status of patient. Despite this, scarce studies are focused on combined protocols based on high intensity interval training (HIIT) and dietary education in CAD patients with percutaneous coronary intervention (PCI). Purpose The main goal of this study was to compare the effectiveness of a multidisciplinary program based in HIIT, with a program based in dietary education and HIIT (DEHIIT), on eating habits in CAD patients w…
Abstract TMP17: Revacept, an Inhibitor of Platelet Adhesion in Patients With Symptomatic Carotid Artery Stenosis. Safety Data From the International …
2020
Introduction: Revacept is a novel vascular lesion-directed inhibitor of platelet adhesion and thrombus formation, exhibiting no effects on the homeostatic functions of circulating platelets. Objective: The effects of Revacept on plaque-mediated thrombosis were investigated in patients with symptomatic stenosis of the internal carotid artery (at least 50%, following ECST-criteria). Methods: Within an international, prospective, multicenter (n=16), randomized trial 158 patients could be randomized to receive placebo, or 40/120 mg Revacept by intravenous infusion over 20 minutes. Cerebrovascular events and cardiovascular complications were followed up to 3 months. Results: 158 patients were f…
Impact of a program based in eating habits and physiotherapy on anthropometric parameters in patients with coronary artery disease: randomized contro…
2021
Abstract Funding Acknowledgements Type of funding sources: None. Introduction. On the one hand, physical training such as High intensity interval training (HIIT) and on the other, eating habits, it is often prescribed to patients with coronary artery disease (CAD). Nevertheless, the combination of HIIT and eating habits in CAD with percutaneous coronary intervention (PCI) there is no consensus on using a combined protocol of both. Purpose. The purpose of this study was to evaluate the impact of an HIIT program with eating habits, with a program based in HIIT, on anthropometric parameters in CAD patients with PCI. Methods. A randomized controlled trial was carried out in a hospital. 44 pati…