Graft Occlusion Vascular
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Why Use the Radial Artery? The Saphenous Vein is the Second Graft of Choice for CABG in Brazil
Abstract The saphenous vein (SV) is the most commonly used conduit for coronary artery bypass surgery (CABG) and the second conduit of choice in Brazil and many other countries. The radial artery (RA) is suggested, by some, to be superior to SV grafts, although its use in the USA declined over a 10 year period. The patency of SV grafts (SVG) is improved when
Braz. J. Cardiovasc. Surg.. Publicado em: 26/08/2019
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2. Experimental study of histological changes in vascular loops according to the duration of the postoperative period: Application in reconstructive microsurgery
OBJECTIVES: To analyze the histological changes observed in venous grafts subjected to arterial blood flow as a function of the duration of the postoperative period to optimize their use in free flap reconstructions. METHOD: Twenty-five rats (7 females and 18 males) underwent surgery. Surgeries were performed on one animal per week. Five weeks after the fi
Clinics. Publicado em: 2017-09
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3. Identificação e caracterização de proteínas modificadas em enxertos de veias safenas humanas arterializadas no modelo ex vivo / Identification and characterization of modified proteins in arterialized human saphenous vein using an ex vivo system
A revascularização cardíaca utilizando a ponte de safena é um procedimento bastante utilizado para restabelecer o fluxo coronariano. Apesar do sucesso deste procedimento, a patência deste enxerto pode chegar a menos de 50% em 10 anos. Atribui-se parte deste insucesso a variações no processo adaptativo à nova condição hemodinâmica, onde o shear str
Publicado em: 2008
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4. Interruption of acute platelet-dependent thrombosis by the synthetic antithrombin D-phenylalanyl-L-prolyl-L-arginyl chloromethyl ketone.
Since the antithrombin action of heparin fails to interrupt arterial thrombosis, a mediating role for thrombin (EC 3.4.21.5) in the formation of high-shear platelet-dependent thrombus has been unproven. To determine whether thrombin is important in acute arterial thrombus formation and to assess the therapeutic potential of inhibiting its action, the effects
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5. Primary Vascular Echinococcosis: An Uncommon Cause of Chronic Iliofemoral Arterial Occlusion
We report the case of a 33-year-old woman who was admitted to our clinic with the diagnosis of chronic arterial occlusion of the right lower extremity. Preoperative angiography suggested an iliofemoral atherosclerotic occlusion. During surgery, multiple hydatid cysts causing iliofemoral occlusion were found and excised. Arterial reconstruction was performed
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6. Short-term results of bovine internal mammary artery use in cardiovascular surgery.
Over a 14-month period, 28 bovine internal mammary arteries (Bioflow, Bio-Vascular, Inc.; St. Paul, Minnesota, USA) were implanted in 20 patients at our institutions. In 8 patients, the bovine internal mammary artery was used to bypass coronary vessels: in 4 of these patients, coronary artery bypass grafting was performed because of coronary disease (1 type-
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7. Anticoagulation and Temporary Graft Occlusion to Determine the Need for Revascularization Following Vascular Graft Infection
The patient with a patent, infected vascular graft presents a dilemma to the surgeon, who must decide whether revascularization is necessary in addition to removal of the infected graft. When a graft infection points superficially or requires drainage, the graft may be well enough exposed to provide easy access. A technique to determine preoperatively the ne
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8. Genetic engineering of vein grafts resistant to atherosclerosis.
Previously, researchers have speculated that genetic engineering can improve the long-term function of vascular grafts which are prone to atherosclerosis and occlusion. In this study, we demonstrated that an intraoperative gene therapy approach using antisense oligodeoxynucleotide blockage of medial smooth muscle cell proliferation can prevent the accelerate
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9. A novel method for endoluminal treatment of abdominal aortic aneurysms. With bare-metal Wallstent endoprostheses and endovascular coils.
The established therapy for symptomatic, expanding abdominal aortic aneurysms is open surgical replacement with an artificial graft. Over the last several years, there has been increasing enthusiasm for the use of endoluminal graft prostheses to exclude abdominal aortic aneurysms. However, even with rapid advances in stent graft technology, certain problems
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10. Ascending aorta to common femoral artery bypass: An unusual but successful method for revascularization of the lower extremity: Report of case
A 61-year-old woman presented with symptoms and signs of severe ischemia in the left leg. Rest pain was present, and the leg was pulseless. The patient reported a complicated history of repeated strokes. Complete evaluation revealed mitral valve disease, atrial fibrillation, and occlusion of the distal aorta and left iliac and femoral arteries. Corrective su
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11. Coronary artery ectasia--a variant of occlusive coronary arteriosclerosis.
In a study of 1000 consecutive coronary arteriograms, 12 patients (all men) had coronary artery ectasia. Ectasia was found most frequently in the circumflex or right coronary artery. Only 1 patient had ectasia in the left anterior descending coronary artery. In 11 patients, ectasia of one artery was associated with severe stenosis or occlusion of other vesse
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12. Antithrombotic effects of thrombin-induced activation of endogenous protein C in primates.
The effects on thrombosis and hemostasis of thrombin-induced activation of endogenous protein C (PC) were evaluated in baboons. Thrombosis was induced by placing into arteriovenous shunts a segment of Dacron vascular graft, which generated arterial platelet-rich thrombus, followed by an expansion region of low-shear blood flow, which in turn accumulated fibr