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Also, when comparing the efficacy of using PTFE or the great saphenous vein in people with claudication and critical limb ischemia, the latter showed better long term results. [5] [12] A second bypass may be required if a blockage forms in the bypass graft later on.
In the legs, bypass grafting is used to treat peripheral vascular disease, acute limb ischemia, aneurysms and trauma.While there are many anatomical arrangements for vascular bypass grafts in the lower extremities depending on the location of the disease, the principle is the same: to restore blood flow to an area without normal flow.
PTFE grafts can be used to bypass stenotic arteries in peripheral vascular disease if a suitable autologous vein graft is not available. Many bicycle lubricants and greases contain PTFE and are used on chains and other moving parts subjected to frictional forces (such as hub bearings). PTFE is used for some types of dental floss.
An arteriovenous graft. AV (arteriovenous) grafts are much like fistulas in most respects, except that an artificial vessel is used to join the artery and vein. The graft usually is made of a synthetic material, often PTFE, but sometimes chemically treated, sterilized veins from animals are used. Grafts are inserted when the patient's native ...
Vascular bypass grafting can be performed to circumvent a diseased area of the arterial vasculature. The great saphenous vein is used as a conduit if available, although artificial (Gore-Tex or PTFE) material is often used for long grafts when adequate venous conduit is unavailable.
Direct transfusion is a blood salvaging method associated with cardiopulmonary bypass (CPB) circuits or other extracorporeal circuits (ECC) that are used in surgery such as coronary artery bypass grafts , valve replacement, or surgical repair of the great vessels. Following bypass surgery, the ECC circuit contains a significant volume of ...
The e-PTFE membrane behaves as a barrier to prevent fibroblasts and various connective-tissue cells from entering the bone defect in order to allow the slower moving cells that are osteogenic to repopulate the defect. [15] A study used e-PTFE membranes to cover surgically constructed average size bone defects in the mandibular angles of rats.
Bypass surgery refers to a class of surgery involving rerouting a tubular body part. [1]Types include: Vascular bypass surgery such as coronary artery bypass surgery, a heart operation, in which the internal thoracic artery and great saphanous vein are used to bypass the coronary artery.
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