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  • vessel
  • After puncturing the vessel with a needle and confirmation of arterial access a wire is advanced, the needle removed and a vascular sheath is introduced. (wikipedia.org)
  • REBOA, also called Aortic Balloon Occlusion (ABO), is a powerful endovascular tool that inflates an intra-aortic balloon occluding the lumen of the vessel and decreased or completely prevents blood flow to the more distal parts. (wikipedia.org)
  • Vein grafting is a surgical technique in which a vein(s) is removed and grafted to another blood vessel to bypass a blockage, repair a blood vessel or connect blood vessels of a tissue or digit graft to recipient blood vessels. (wikipedia.org)
  • Free vein grafts are also used frequently during reconstructive surgery in situations where recipient vessels are damaged or are otherwise inadequate and require bridging vein grafts to connect graft and recipient blood vessels or to restore vessel length in situations where recipient vessels have been surgically debrided. (wikipedia.org)
  • However, over time, the body's inflammatory immune response (described below in the "Causes" section) reacts to the stent-graft via smooth muscle proliferation, etc., which literally pushes the stent-graft back, narrowing the vessel and losing at least a percentage of what was previously gained, or late loss. (wikipedia.org)
  • Vessel occlusion increases vascular resistance and therefore leads to hypertension. (wikipedia.org)
  • A small vessel diameter, the presence of posterior calcification, occlusion, hematoma, or a bypass origin[clarification needed] may all make access to the vascular system too difficult. (wikipedia.org)
  • At the conclusion of the procedure, the balloons, wires and catheters are removed and the vessel puncture site is treated either with direct pressure or a vascular closure device. (wikipedia.org)
  • This vessel becomes a graft, with one end attaching to a blood source above and the other end below the blocked area, creating a "conduit" channel or new blood flow connection across the heart. (wikipedia.org)
  • surgical
  • METHODS: This investigation was a retrospective study using a national database on vascular surgical patients at a single medical institution. (forskningsdatabasen.dk)
  • A vascular bypass (or vascular graft) is a surgical procedure performed to redirect blood flow from one area to another by reconnecting blood vessels. (wikipedia.org)
  • A surgeon sews the graft to the source and target vessels by hand using surgical suture, creating a surgical anastomosis. (wikipedia.org)
  • Access to the vascular system is typically gained percutaneously (through the skin, without a large surgical incision). (wikipedia.org)
  • aortic
  • Used when patient cannot tolerate a more invasive and higher risk aorto-bifem, or when removing an infected aortic graft such as an EVAR device. (wikipedia.org)
  • thrombosis
  • Neurological involvements range from aseptic meningitis to vascular thrombosis such as dural sinus thrombosis and organic brain syndrome manifesting with confusion, seizures, and memory loss. (wikipedia.org)
  • proximal
  • Dogma in vascular bypass technique says to obtain proximal and distal control. (wikipedia.org)
  • In a hemodynamically unstable bleeding patient, traditional treatment is laparotomy with abdominal packing, but an EVTM team might simultaneously gain vascular access and perform REBOA for proximal control or embolization as a part in definitive treatment. (wikipedia.org)
  • arterial
  • A second area of controversy is whether to focus bypass grafting on the left circulation or to attempt additional grafting to achieve what is termed "total arterial revascularization," which includes the posteroinferior left ventricle. (appliedradiology.com)
  • flap
  • Integral vein grafts refer to those blood vessels located within a flap or digit graft that are micro-surgically connected to recipient blood vessels. (wikipedia.org)
  • hemodialysis
  • A vascular bypass is often created to serve as an access point to the circulatory system for hemodialysis. (wikipedia.org)
  • In hemodialysis, vascular access is used to remove the patient's blood so that it can be filtered through the dialyzer. (wikipedia.org)
  • The type of vascular access created for patients on hemodialysis is influenced by factors such as the expected time course of a patient's renal failure and the condition of his or her vasculature. (wikipedia.org)
  • failure
  • The effect of graft configuration on 30-day failure of infrapopliteal " by Bao-Ngoc Nguyen, Richard F. Neville et al. (gwu.edu)
  • luminal
  • It measures either the percent (relative) or absolute change in minimum luminal diameter (MLD) over the months following a vascular procedure, such as the implantation of a stent-graft. (wikipedia.org)
  • circulation
  • Presyncope (sensation that one is about to faint) Syncope (fainting) Neurologic deficits Blood pressure differential between the arms severe memory problems hands showing circulation problems (hands can have blotchy patches of red and white) (associated with other stigmata of vascular disease (e.g. vascular insufficiency ulcers of the Fingers). (wikipedia.org)
  • physiology
  • This is not surprising given the similar anatomy and physiology between types of vein grafts and given that vascular graft experience similar stresses, including the physical trauma of harvesting and handling, post-harvest ischemia, oxidative stress, reperfusion injury and adaptive stress in the new post grafting environment. (wikipedia.org)
  • patients
  • The drug was discovered by S. Al-Mahmood, in Paris, France and then developed to Phase III in progressive corneal neovascularisation in patients suffering from infectious keratitis and on the waiting list for Corneal Graft replacement (an EU Orphan Drug designation). (wikipedia.org)
  • Patients may have multiple accesses, usually because an AV fistula or graft is maturing and a catheter is still being used. (wikipedia.org)
  • Late loss is one metric that is useful in determining the effectiveness of vascular interventions in clinical trials for either an individual patient or a group of patients. (wikipedia.org)
  • prevention
  • In April 2007, the EMA's Committee for Orphan Medicinal Products (COMP) granted Gene Signal orphan designation for aganirsen for the prevention of corneal graft rejection associated with excessive neovascularisation of the host cornea (EMEA/COMP/108186/2007). (wikipedia.org)
  • severe
  • This can cause problems with severe venous congestion in the area drained by the vein and may also render the vein, and the veins drained by it, useless for creating a fistula or graft at a later date. (wikipedia.org)
  • blood
  • 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. (wikipedia.org)
  • As with traditional trauma care, vascular access in the peripheral or central veins allows for blood sampling and administration of drugs or fluids. (wikipedia.org)
  • However, blood flow is almost always less than that of a well functioning fistula or graft. (wikipedia.org)
  • commonly
  • In general, someone's own vein (autograft) is the preferred graft material (or conduit) for a vascular bypass, but other types of grafts such as polytetrafluoroethylene (Teflon), polyethylene terephthalate (Dacron), or a different person's vein (allograft) are also commonly used. (wikipedia.org)