• Vascular graft is one of the examples. (uwaterloo.ca)
  • Synthetic small diameter vascular graft (sSDVG) is defined by synthetic vascular grafts with internal diameter less than 6mm. (uwaterloo.ca)
  • IH develop at the distal anastomosis of the graft and are due to over proliferation and abnormal migration of vascular smooth muscle cells (VSMC). (uwaterloo.ca)
  • Compliance in vascular engineering is referring to the radial elasticity of the vascular graft or the blood vessel. (uwaterloo.ca)
  • For example, polyurethane is being studied as a potential compliant vascular graft. (uwaterloo.ca)
  • The compliance of PVA vascular graft developed by Chaouat et al. (uwaterloo.ca)
  • In part due to the sensitivity to fabrication condition, the consistency of PVA vascular graft suffered from person-to-person variation in fabrication process. (uwaterloo.ca)
  • Whether facilitating lower extremity revascularization or providing vascular access, the versatile GORE® PROPATEN® Vascular Graft is purposefully designed to improve outcomes and reduce reinterventions. (goremedical.com)
  • With more than a decade of strong performance, this trusted vascular graft provides proven clinical and economic value. (goremedical.com)
  • With more than 600,000 devices implanted over a span of more than 10 years ─ and over 2,000 limbs studies ─ the GORE® PROPATEN® Vascular Graft is a clinically proven prosthetic bypass graft solution, both for performance and for low cumulative cost of care. (goremedical.com)
  • By substantially reducing acute graft thrombosis within hours after implantation, the GORE® PROPATEN® Vascular Graft provides clinical benefits that standard expanded polytetrafluoroethylene (ePTFE) grafts do not. (goremedical.com)
  • A clinically proven prosthetic bypass graft solution, the GORE® PROPATEN® Vascular Graft also facilitates a low cumulative cost of care. (goremedical.com)
  • When your hemodialysis patients are at risk of fistula non-maturation, the GORE® PROPATEN® Vascular Graft can provide confidence and proven results. (goremedical.com)
  • The CBAS® Heparin Surface of a 3 mm diameter GORE® PROPATEN® Vascular Graft (top) remains free of thrombus, while the 3 mm diameter control ePTFE graft (bottom) is covered with thrombus in an acute two-hour in vivo canine carotid artery interposition model. (goremedical.com)
  • Weighted average of GORE® PROPATEN® Vascular Graft data. (goremedical.com)
  • Begovac PC, Thomson RC, Fisher JL, Hughson A, Gällhagen A. Improvements in GORE-TEX® Vascular Graft performance by Carmeda® BioActive Surface heparin immobilization. (goremedical.com)
  • In patients who have arteriovenous grafts (AVGs), complications such as thrombosis, hemorrhaging, and infection are common, resulting in lower graft patency. (biomedcentral.com)
  • Therefore, in our hospital, to improve graft patency, cases requiring HD immediately after AVG surgery (vascular access occlusion) undergo placement of a tunneled (cuffed) permanent catheter in the internal jugular vein at the time of AVG creation to eliminate preemptive interventions in grafts at risk for thrombosis, hematoma, and infection. (biomedcentral.com)
  • In conclusion, while the duration between AVG creation and its first use on HD has been prolonged, graft patency has been good. (biomedcentral.com)
  • Can ultrasound surveillance of a dialysis patient's arteriovenous graft (AVG) provide better long-term access patency over simple clinical monitoring? (medscape.com)
  • He is also designing a small diameter tissue engineered vascular graft to treat cardiovascular diseases. (pitt.edu)
  • W.L. Gore & Associates yesterday released 1-year data from a Japanese study of its Viabahn stent graft, touting a nearly 90% primary patency rate at 12 months. (massdevice.com)
  • In June, Gore released results from a clinical study of its Viabahn endoprosthesis in AV access graft outflow interventions, touting a 50% increase over percutaneous transluminal angioplasty alone in target lesion primary patency at 6 months. (massdevice.com)
  • Nicast , a company out of Lod, Israel that specializes in the technique of electrospinning to create non-woven fabrics out of microfibers, has received the EU CE Mark of approval for the firms's AVflo™ artificial vascular graft. (medgadget.com)
  • The AVflo is the first vascular access graft to apply the many beneficial properties of electrospun nanofabric. (medgadget.com)
  • Vascular Access Supplies are medical devices and equipment, such as IV catheters, syringes, and saline flush. (alimed.com)
  • Some common blood-contacting devices include catheters, stents, vascular grafts, heart valve prostheses, and extracorporeal circulation/membrane oxygenation systems. (springer.com)
  • 2021. Effects of pair housing on patency of jugular catheters in rats (Rattus norvegicus). (awionline.org)
  • Since then, techniques for thrombolysis have branched in several directions with the treatment of thrombus and/or thrombosis in the coronary arteries, peripheral vascular and visceral arteries, dialysis grafts, veins, and IV catheters. (medscape.com)
  • Currently, synthetic vascular grafts made using expanded polytetrafluoroethylene (ePTFE) or Dacron are commercially available as treatments to cardiovascular diseases. (uwaterloo.ca)
  • These synthetic vascular grafts have good patency, which is a measure used to determine the success of the grafts, and are actively used in more than 400,000 life-saving procedures in the United States alone. (uwaterloo.ca)
  • However, the available synthetic grafts have limitations - their patency is poor when used in small-diameter application. (uwaterloo.ca)
  • Polyurethane vascular grafts were modified with gelatin and collagen to enhance endothelial cell adhesion and were modified using heparin to reduce thrombogenesis. (uwaterloo.ca)
  • Likewise, poly(vinyl alcohol) (PVA) vascular grafts were developed in 2008. (uwaterloo.ca)
  • In this thesis, the roles crosslinking density and interlayer adhesion play in compliance and burst pressure of PVA vascular grafts were studied. (uwaterloo.ca)
  • Generally, the preferred route of vascular access in chronic kidney disease patients is an arteriovenous fistula (AVF) rather than grafts. (biomedcentral.com)
  • Connective tissue disease type mediates branch patency of grafts in open thoracoabdominal aortic reconstruction. (cdc.gov)
  • Here, we present four conventional HD patients who had vascular access occlusion and required HD immediately after AVG surgery. (biomedcentral.com)
  • The creation of all these three major types of vascular accesses requires surgery. (wikipedia.org)
  • Since the publication of the 2017 CCS guidelines on perioperative cardiac risk assessment and management for patients who undergo noncardiac surgery, [90] new evidence has emerged for evaluating clinical risk indices specific to patients who undergo peripheral vascular surgery. (ccs.ca)
  • The scope of this section includes the evaluation of available evidence for preoperative assessment and risk stratification of patients who undergo nonurgent vascular surgery for PAD along the following themes: clinical risk indices, cardiac biomarkers, and noninvasive testing. (ccs.ca)
  • Various tools have been developed and evaluated to predict the perioperative risk of vascular surgery patients. (ccs.ca)
  • This risk score was developed from the Vascular Quality Initiative, the largest vascular surgery-specific database assembled to date representing data from the United States and Canada. (ccs.ca)
  • Vascular and endovascular surgery. (rug.nl)
  • Annals of vascular surgery. (rug.nl)
  • Results from the study were published in the Journal of Vascular Surgery , Gore said. (massdevice.com)
  • Dr. Hemanth Kumar R is a Consultant Vascular & Endovascular Surgeon who specialises in Laser Varicose Veins Surgery, Endovascular Management of Peripheral Arterial Disease, and Arteriovenous Fistula Creation, among others. (yashodahospitals.com)
  • A 3 mm Goretex shunt is usually satisfactory but an appropriate sized shunt at the time of surgery may prove far too generous in the early postoperative period (as the pulmonary vascular resistance falls). (bmj.com)
  • Michael S. Conte, M.D. , Professor and Chief of the Division of Vascular & Endovascular Surgery and Director of the Conte Lab , has been awarded two grants to develop a prototype medical device that will deliver bioactive lipid mediators to prevent "restenosis", the recurrent narrowing of blood vessels following interventions such as angioplasty, stenting, and bypass surgery. (ucsf.edu)
  • The first grant, a $200.000 Technology Development Award from the UC Center for Accelerated Innovation, is funded through a combination of grants and matching funds from a group comprised of National Heart, Lung and Blood Institute (UC CAI), UCSF School of Medicine, UCSF Department of Surgery, Division of Vascular and Endovascular Surgery, Boston Biomedical Innovation Center ( B - BIC ) and Brigham and Women's Hospital. (ucsf.edu)
  • The project manager for the grant is Evan C. Werlin, M.D ., a resident research fellow in general surgery, who will conduct much of the reseach and work with the Desai Lab to optimize the device to deliver biologically active Resolvin to sites of vascular injury while minimizing the host's response to the device itself. (ucsf.edu)
  • The problem of vascular injury is pervasive throughout cardio-vascular surgical procedures, including vascular access, angioplasty, stenting and bypass surgery. (ucsf.edu)
  • Journal of vascular surgery 2021 6 75 (1): 90-98. (cdc.gov)
  • We performed a retrospective analysis of the placement of a tunneled permanent catheter as temporary vascular access in AVG creation for long-term patency. (biomedcentral.com)
  • Factors Affecting the Long-Term Patency of Arteriovenous Access for Hemodialysis: A Single Center Experience. (yashodahospitals.com)
  • Higher primary and secondary patency, and higher limb salvage for below-knee bypass compared to standard ePTFE from 1-3 years. (goremedical.com)
  • The primary outcomes were primary assisted and secondary patency, and the secondary outcome was dialysis access abandonment. (bvsalud.org)
  • AVF aneurysmorrhaphy was associated with improved primary assisted and secondary patency and decreased abandonment of dialysis access. (bvsalud.org)
  • We operationally define central nervous system vasculitis (CNSV) as any inflammatory vasculopathy producing nonatheromatous inflammation of intracranial vessels either directly (eg, primary CNS vasculitis) or indirectly via inflammation of CNS parenchyma with secondary vascular involvement (eg, as seen with infections, tumors, and certain autoimmune conditions). (ajnr.org)
  • In elbow placements, data indicated a 72% target lesion primary patency at 6 months and 83% access secondary patency at 24 months. (massdevice.com)
  • KM estimated primary and secondary TA patency were 93% ± 2% and 96% ± 1% at 5 years, respectively. (lu.se)
  • Assessing peripheral pulses and checking Doppler pressures to assure vascular patency is very important. (medscape.com)
  • The global peripheral vascular and biliary stents market size was USD 4,124.6 Million in 2022 and is expected to register a revenue CAGR of 6.0% during the forecast period. (emergenresearch.com)
  • Rising prevalence of cardiovascular and biliary diseases among people is one of the major factors expected to drive the peripheral vascular and biliary stents market revenue growth during the forecast period. (emergenresearch.com)
  • Rising minimally invasive procedures is also creating a high demand for peripheral vascular and biliary stents. (emergenresearch.com)
  • As part of peripheral artery angioplasty, which is a minimally invasive endovascular operation to open up blocked or restricted arteries or veins, often to treat arterial atherosclerosis, vascular stents are frequently inserted. (emergenresearch.com)
  • The rigorous regulatory approval procedure is a substantial barrier to revenue growth of the peripheral vascular and biliary stents market. (emergenresearch.com)
  • On the basis of product type, the global peripheral vascular and biliary stents market is segmented into peripheral vascular stents and biliary stents. (emergenresearch.com)
  • The peripheral vascular stents segment is sub-segmented into self-expanding stents, balloon-expandable stents, drug-eluting stents, and bare metal stents. (emergenresearch.com)
  • Increasing prevalence of peripheral vascular disease among people is leading to revenue growth of this segment. (emergenresearch.com)
  • Chronic peripheral vascular disease is frequently accompanied by other illnesses such as diabetes or coronary artery disease. (emergenresearch.com)
  • Peripheral stent implants aid in maintaining the patency of a blocked or obstructed artery so that blood can flow through it. (emergenresearch.com)
  • With these awards, we are on the leading edge of translational research in vascular disease and hope to impact one of the most significant problems limiting long-term success in the treatment of cardiovascular and peripheral arterial disease: intimal hyperplasia. (ucsf.edu)
  • Although additional cases are required to confirm the efficacy of this approach, this finding enables the dialysis community to consider the initiation of AVG use immediately in cases of vascular access occlusion. (biomedcentral.com)
  • Thrombolysis by means of selective catheter infusion for vascular occlusion entered the mainstream during the 1970s. (medscape.com)
  • The intraocular and fluorescein angiography confirmed the complete vascular occlusion as the main pa- thology (Figure 2). (who.int)
  • She needed to maintain vein patency with repeated percutaneous venous angioplasty (PTA). (biomedcentral.com)
  • Angioplasty and stenting are used to open the obstructed coronary artery and maintain the arterial patency. (ca.gov)
  • Purpose: Studies on ultrasound-accelerated, catheter-directed thrombolysis of acute deep vein thrombosis emphasize good patency rates and low complication rates. (maastrichtuniversity.nl)
  • Conclusion: Although ultrasound-accelerated, catheter-directed thrombolysis is feasible with good patency rates, further prospective randomized trials are necessary to evaluate the value of thrombus removal in iliofemoral deep vein thrombosis in comparison to conservative treatment. (maastrichtuniversity.nl)
  • New 12-month clinical trial outcomes assessing the safety and performance of the Boston Scientific (NYSE: BSX) Eluvia™ Drug-Eluting Vascular Stent System reflect a primary patency rate1 of more than 96 percent. (bostonscientific.com)
  • Mimics trial finds higher patency for Veryan helical stent over straight. (vascularnews.com)
  • Chronic vascular access devices are widely used in a variety of species for repeated blood sampling or substance administration. (awionline.org)
  • Regional variations in the incidence of vascular diseases have been related to regional differences in arterial viscoelasticity. (revespcardiol.org)
  • Eighty-eight percent is an extremely high primary patency for these long complex lesions with an average length of 22 cm, especially given the scrutiny of the study design: a prospective, multicenter IDE clinical study that was core lab adjudicated and reviewed by the Japanese regulatory authority. (massdevice.com)
  • Primary patency in all lesions was reported to be 88% at 12 months, with lesions less than or equal to 20cm reporting a 93% primary patency. (massdevice.com)
  • Further, it should be considered that stenotic lesions in TA may be resolved after treatment with immunosuppressants, even without vascular intervention 12 , 13 , 14 . (jrheum.org)
  • The company reported that treatment with the Viabahn resulted in significantly better outcomes when compared against PTA alone for treating challenging AV access cases, both in terms of primary patency and number of interventions during the study period. (massdevice.com)
  • However, previous studies on vascular interventions in patients with TA have shown inconsistent results, ranging from a high risk of restenosis to good longterm efficacy and patency, although open revascularization resulted in superior patency rates compared with endovascular intervention 4 , 6 , 9 , 10 , 11 . (jrheum.org)
  • The second grant, a $1.8M grant from the NHLBI Vascular Interventions/Innovations and Therapeutic Advances (VITA) Program , is for the development of a d rug -d evice combination for prevention of restenosis. (ucsf.edu)
  • Failure due to restenosis and vascular scarring is a continuing complication of most vascular interventions, creating an unmet medical need. (ucsf.edu)
  • The patients underwent placement of a tunneled permanent catheter for temporary vascular access in AVG creation. (biomedcentral.com)
  • However, the reconstructed AVF became occluded again, and we decided to perform brachial-basilic AVG in the right forearm (because of the narrow vascular diameter) with placement of a tunneled permanent catheter (because of the immediate initiation of HD). (biomedcentral.com)
  • Therefore, we analyzed quality of life besides technical success and patency in our patients after ultrasound-accelerated, catheter-directed thrombolysis. (maastrichtuniversity.nl)
  • A satisfactory balance between adequate oxygenation and perfusion is often achieved in the early newborn period without specific intervention, other than intravenous prostaglandin to maintain ductal patency. (bmj.com)
  • 70%) were associated with vascular intervention. (jrheum.org)
  • Moreover, previous studies included only patients who underwent vascular intervention 5 , 9 , 10 , 11 . (jrheum.org)
  • With patency you can count on, you can give your patients reliable vascular access for the road ahead. (goremedical.com)
  • At present, 956 days after the operation, the patient is receiving HD stably with no vascular access problems. (biomedcentral.com)
  • Despite the continuation of regular PTAs (every 3 months), her inadequate HD blood flow due to severe stenosis did not improve, so an alternative route of vascular access was considered. (biomedcentral.com)
  • Arteriovenous fistula aneurysmorrhaphy is associated with improved patency and decreased vascular access abandonment. (bvsalud.org)
  • Vascular access refers to a rapid, direct method of introducing or removing devices or chemicals from the bloodstream. (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 kidney failure and the condition of his or her vasculature. (wikipedia.org)
  • Evaluate vascular access for patency. (gettinghired.com)
  • Perform vascular access evaluation pre-treatment. (gettinghired.com)
  • Perform vascular access cannulation. (gettinghired.com)
  • Flushing is an essential strategy in maintaining patency of a central vascular access device. (nursingcenter.com)
  • To create a fistula, a vascular surgeon joins an artery and a vein together through anastomosis. (wikipedia.org)
  • 6. Appropriately sized and accessible target coronary arteries, with a minimum diameter of 2 mm and adequate vascular bed (without significant distal stenosis), as assessed by pre-operative cardiac angiography and verified by diameter gauging intraoperatively. (who.int)
  • sSDVG face limited success due to vascular wall thickening known as intimal hyperplasia (IH). (uwaterloo.ca)
  • These tools help maintain airway patency, provide ventilation support, and facilitate effective chest compressions. (alimed.com)
  • We sought to test the ability of contrast-enhanced, high-resolution 3D vessel wall MR imaging to identify vascular inflammation and direct open biopsies of intracranial target vessels and adjacent brain parenchyma. (ajnr.org)
  • Plain skull radiograph may reveal hyperostosis and increased vascular markings of the skull, as well as intracranial calcifications. (medscape.com)
  • Although effective in restoring the blood flow, these procedures activate a population of vascular cells resident in the arterial wall to grow into the vesslel lumen, causing re-narrowing (restenosis) of the treated artery months or years later. (ca.gov)
  • Once activated, these cells grow and differentiate into cells that invade the vascular luman and contribute to arterial re-narrowing. (ca.gov)
  • However, if signs of a low systemic cardiac output develop (low urine output and progressive acidosis) it will be necessary to increase the pulmonary vascular resistance by active respiratory management: it may seem counterintuitive to reduce inspired oxygen in a sick, shocked neonate but this is frequently necessary to achieve stability. (bmj.com)
  • This again depends on the ratio between the pulmonary and systemic vascular resistances, but now also on the physical size of the shunt. (bmj.com)
  • Injury to the vascular endothelium of the lung, as well as other physiological insults that elevate pulmonary blood pressure, can lead to the excessive accumulation of collagen and elastin in the conductance and resistance arteries of the pulmonary circulation. (ersjournals.com)
  • At the UPMC Heart and Vascular Institute , our faculty, fellows, and clinical staff members engage in research to find new and better treatments for cardiovascular disease. (upmc.com)
  • The goal of this VITA Program contract is use this biology to develop a prototype medical drug/device that effectively prevents restenosis and reduces vascular scarring. (ucsf.edu)
  • Bioabsorbable stents (BRS) are advanced medical tools coated with an antiproliferative drug or gene that dissolves to restore vessel patency. (imarcgroup.com)
  • The risk tools are freely available online and can be downloaded for offline use through the app, Calculate by QxMD, at https://qxmd.com/calculate/calculator_323/vascular-quality-initiative-vqi-cardiac-risk-index-cri-infra-inguinal-bypass. (ccs.ca)
  • 3 year, milestone based contract funding our development of devices to release omega-3 derived vasoprotective compounds ("resolvins") to promote surgical bypass patency, in a large animal model. (ucsf.edu)
  • Clinical relevance of genotype-phenotype correlations beyond vascular events in a cohort study of 1500 Marfan syndrome patients with FBN1 pathogenic variants. (cdc.gov)
  • The Gore Japan IDE clinical study has once again proven that the Viabahn device effectively covers and seals off diseased tissue, enabling high patencies regardless of lesion length. (massdevice.com)
  • Data from the study also indicated a 47% improvement in target lesion primary patency and a 48% improvement in circuit primary patency when compared against PTA alone at 6 months. (massdevice.com)
  • Overall weighted average primary patency is based on data from 14 peer-reviewed publications meeting pre-determined inclusion criteria. (goremedical.com)
  • Dr. Hemanth Kumar R is a Consultant Vascular & Endovascular Surgeon at Yashoda Hospitals, Secunderabad, with over 3 years of experience. (yashodahospitals.com)
  • Dr. Hemanth Kumar R has over 3 years of experience as a Vascular & Endovascular Surgeon. (yashodahospitals.com)
  • It regulates the blood flow at branch points and limits the amount of blood to areas of the vascular network while also maintaining the flow. (imarcgroup.com)