• vessel
  • Proliferation of smooth muscle cells (SMCs) in the vessel wall is an important event in the formation of vascular lesions in atherosclerosis, after vascular reconstruction or in response to other vascular injury. (google.com)
  • Both occlusion balloons and filters have the potential to inflict damage to the vessel wall during deployment, use, or retrieval. (ahajournals.org)
  • Alternatively, the graft may be used as a bypass around a diseased vessel. (google.ca)
  • The implant is intended to be inserted into the patient and expanded to bring a graft into contact with inner wall linings of a blood vessel. (google.com)
  • 2. The medical implant device of claim 1 further including a flexible tubular graft located radially outwardly of said mesh for engaging a wall lining of a vessel when said mesh is in the second position. (google.com)
  • 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)
  • surgery
  • We assessed a total of 822 patients exposed to infrainguinal in situ bypass vascular surgery over the period of January 2000 to September 2010. (forskningsdatabasen.dk)
  • Graft occlusion within 7 days after surgery was reported in 93 patients, with a similar incidence in the epidural (10.1%) and general (10.8%) anesthesia groups (P = 0.730). (forskningsdatabasen.dk)
  • When examining a subgroup of patients (n = 242) exposed to surgery on smaller vessels (femorodistal in situ bypass procedures, n = 253), the incidence of graft occlusion was also similar in the 2 groups at 14.0% and 9.4%, respectively (P = 0.262). (forskningsdatabasen.dk)
  • Journal of Vascular Surgery, 59(4), 1003-1008. (gwu.edu)
  • Mechanical failure of the balloon itself is also a risk which entails vascular surgery to remove under that circumstance. (wikipedia.org)
  • The creation of all these three major types of vascular accesses requires surgery. (wikipedia.org)
  • Procedures frequently used to treat the vascular damage from atherosclerosis and related narrowing and renarrowing (restenosis) of blood vessels include vascular surgery, cardiac surgery, and angioplasty. (wikipedia.org)
  • The group focuses on pancreatic cancer, other gastrointestinal and hepatobiliary malignancies, vascular disease, and transplant surgery. (wikipedia.org)
  • Pancreatic cancer and pancreatic disease Other gastrointestinal and hepatobiliary malignancies Vascular disease Transplant surgery and transplant psychology Investigating factors that affect surgical outcomes for diverse specialties including colorectal, cardiovascular, transplant, plastic and reconstructive, and minimally invasive surgery Beth Israel Deaconess Medical Center (BIDMC) in Boston, Massachusetts is a teaching hospital of Harvard Medical School. (wikipedia.org)
  • See also: Beth Israel Deaconess Medical Center website SOAR researchers use national health services and administrative databases as well as prospective institutional tissue-linked databases to investigate factors contributing to disease outcomes for pancreatic cancer, hepato biliary disease, vascular disease, colorectal disease, plastic and reconstructive surgery, and transplant medicine. (wikipedia.org)
  • These include: Vascular Study Group of New England (VSGNE), a regional vascular surgery database. (wikipedia.org)
  • Vascular Quality Initiative (VQI), a national vascular surgery database. (wikipedia.org)
  • stent
  • A standardized multi-branched thoracoabdominal stent-graft for endovascular aneurysm repair. (biomedsearch.com)
  • The present invention relates generally to a device and minimally invasive procedure for treating a localized abnormal dilation of a lumen and more particularly, the present invention relates to a low profile stent suitable for use as a synthetic graft for the non-surgical treatment of an aneurysm, fistula, legion or the like in certain blood vessels and internal organs. (google.com.au)
  • Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) for hemorrhage control, angioembolization and stent grafts are highly established tools used for both arterial and venous hemorrhage in both traumatic and non-traumatic patients. (wikipedia.org)
  • 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)
  • For instance, the implantation of a stent-graft will first provide an acute gain in lumen diameter. (wikipedia.org)
  • The net gain of lumen diameter is the difference between acute gain and late loss, and is a measure of stent-graft effectiveness. (wikipedia.org)
  • tubular graft
  • A vascular tubular graft of a woven fabric with a single velour outside (external) surface and a smooth interior surface, said outside surface having a plurality of loops, each loop extending around a portion of the circumference thereof and each loop formed by fill yarn positioned about warp yarn. (google.ca)
  • 13. The graft of claim 11 in which each loop along the length of the tubular graft is offset and out of alignment with the next adjacent loop. (google.ca)
  • 16. The graft of claim 12 in which the tubular graft is crimped about its circumference. (google.ca)
  • Aorta
  • The following conditions will always exclude patients for treatment: Severe aortic valve insufficiency Aortic dissection Severe aortoiliac occlusive disease and bilateral carotid stenosis The following conditions make IABP therapy inadvisable except under pressing circumstances: Prosthetic vascular grafts in the aorta Aortic aneurysm Aortofemoral grafts Sepsis Since the device is placed in the femoral artery and aorta it could provoke ischemia, and compartment syndrome. (wikipedia.org)
  • Balloon
  • 19 However, rigorous particulate analysis was not performed in that trial, and it is not known whether there may be benefits of an occlusion balloon system (eg, more complete particulate retrieval and prevention of soluble mediators released during intervention) that are being offset by requisite procedural ischemia provoked by occlusion. (ahajournals.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)
  • vessels
  • A collapsible medical device and associated method for grafting a lumen of selected organs and vessels, wherein the medical device is shaped from a shape memory fabric. (google.com.au)
  • To create the bypass graft, a surgeon will remove or "harvest" healthy blood vessels from another part of the body, often from the patient's leg or arm. (wikipedia.org)
  • distal
  • 4-7 Distal protection devices 8-17 have been developed, intended to trap plaque-derived emboli during interventions and prevent embolization into the distal vascular bed. (ahajournals.org)
  • Dogma in vascular bypass technique says to obtain proximal and distal control. (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)
  • proximal
  • 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)
  • fistula
  • In the latter two, needles are used to puncture the graft or fistula each time dialysis is performed. (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)
  • However, blood flow is almost always less than that of a well functioning fistula or graft. (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)
  • acute
  • This supports the notion that unless soluble mediators play an important role in adverse acute clinical events after stenting, the clinical efficacy of filtering devices may be equal to that of occlusion devices. (ahajournals.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)
  • 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)
  • failure
  • The effect of graft configuration on 30-day failure of infrapopliteal " by Bao-Ngoc Nguyen, Richard F. Neville et al. (gwu.edu)
  • arteries
  • Such grafts usually are used in connection with arteries which carry large blood volumes e.g., located in the lower body of the human, although it may be used in other parts of the human body. (google.ca)
  • Arteries can also serve as vascular grafts. (wikipedia.org)
  • blood
  • 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)
  • embolization
  • 18 By virtue of complete occlusion and poststenting complete graft evacuation, the PercuSurge device theoretically prevents embolization of all particles, no matter how small, as well as of soluble mediators released during stenting. (ahajournals.org)
  • It has not been established that the efficacy of occlusion systems can be matched by newer approaches to embolic protection such as filtering devices, which do not occlude anterograde flow but rather strain the effluent so as to prevent particulate embolization. (ahajournals.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)