EU5 Non-Vascular Stents Market Outlook to 2020 is a new market research publication announced by Reportstack. This report provides key market data on the EU5 Non-Vascular Stents market. The report provides value, in millions of US dollars, volume (in units) and average prices (in US dollars) within market segments - Biliary Stents (Plastic Biliary Stents and Metal Biliary Stents (Metal Non-Covered Biliary Stents, Metal Partially Covered Biliary Stents and Metal Fully Covered Biliary Stents)), Gastrointestinal Stents (Fully Covered, Partially Covered and Non-Covered Gastrointestinal Stents), Airway Stents (Silicone Airway Stents and Metallic Airway Stents (Fully Covered and Uncovered Metallic Airway Stents) and Urinary Tract Stents ((Ureteral Stents (Metal, Polymer and Bioabsorbable Ureteral Stents), Prostate Stents (Metal, Polymer and Bioabsorbable Prostate Stents) and Urethral Stents (Metal, Polymer and Bioabsorbable Urethral Stents ...
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Objective To compare the application effect and cost in intracoronary stent implantation between domestic and imported drug eluting stent. Methods A total of 791 coronary heart disease patients undergoing intracoronary stent implantation were selected in a Grade 3 and first-class hospital in 2013,and they were divided into A group( using domestic drug eluting stent,n = 398) and B group( using imported drug eluting stent,n = 393) according to the types of stents. During the intracoronary stent implantation,patients of A group used Shanghai Minimally-invasive Firebird Ⅱ Drug-eluting Stents,while patients of B group received United States Medtronic Endenvor Drug Eluting Stents. Clinical data,operative success rate,locations of coronary artery lesions,number of implanted stents,clinical outcome,hospitalization related expenses and incidence of complications were compared between the two groups. Results Patients of the two groups completed the operation successfully,the operative success rates of the two
... Description:Self-expandable stents were initially placed for the treatment of cardiovascular diseases but now play an integral role in the relief of benign and malignant obstruction of the gastrointestinal tract and biliary system. "Self-Expandable Stents in the Gastrointestinal Tract
From Cardiology Team, Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong. LAM and LI: Use of Distal Protection Device for Percutaneous Intervention in Native Coronary Arteries. Microembolization of particulate debris during percutaneous coronary intervention (PCI) will lead to various degree of microvascular obstruction, terminating in no-reflow phenomenon observed angiographically. Different methods, including angiography, non-invasive imaging, and assays of myocardial injury markers, have been used for detection of occurrence of microvascular obstruction. The prevalence of, and the adverse prognosis associated with microvascular obstruction have led to the concept and application of distal protection for coronary interventions. While its value has been confirmed in saphenous vein grafts intervention, data is now growing to support use of distal protection devices in native coronaries. Findings from a local registry that reveals the initial experience on use of ...
Airway self-expandable metallic stents (SEMS) were initially studied in malignant airway obstruction; however, their use in benign airway diseases has become progressively more frequent. This may be explained by their ease of insertion compared with silicone stents, which require rigid bronchoscopy for insertion. While initial experience with SEMS in benign disease suggested efficacy and promising short-term safety profile, long-term follow-up revealed significant complication rates. In addition to a high complication rate, the management of these complications is made more difficult by the semipermanent nature of these devices. Reported complications include infection, granulation tissue formation, stent migration, stent fracture, airway perforation and fistula formation, as well as extension of the initial injury, potentially eliminating other therapeutic options such as surgical resection. Therefore, SEMS should only be used in nonmalignant large airway disease as a last resort for patients in whom
1 Table of Contents. 1 Table of Contents 2. 1.1 List of Tables 4. 1.2 List of Figures 4. 2 Introduction 5. 2.1 What Is This Report About? 5. 2.2 Non-Vascular Stents Market Segmentation 5. 2.3 Definitions of Markets Covered in the Report 6. 3 Non-Vascular Stents Market, India 8. 3.1 Non-Vascular Stents Market, India, Revenue ($m), 2009-2016 8. 3.2 Non-Vascular Stents Market, India, Revenue ($m), 2016-2023 10. 3.2.1 Airway Stents Market, India, Revenue ($m), by Segment, 2009-2016 12. 3.2.2 Enteral Stents Market, India, Revenue ($m), by Segment, 2009-2016 14. 3.2.3 Pancreatic and Biliary Stents Market, India, Revenue ($m), by Segment, 2009-2016 16. 3.2.4 Urinary Tract Stents Market, India, Revenue ($m), by Segment, 2009-2016 18. 3.2.5 Airway Stents Market, India, Revenue ($m), by Segment, 2016-2023 20. 3.2.6 Enteral Stents Market, India, Revenue ($m), by Segment, 2016-2023 22. 3.2.7 Pancreatic and Biliary Stents Market, India, Revenue ($m), by Segment, 2016-2023 24. 3.2.8 Urinary Tract Stents ...
The FAIR trials objective was to assess safety and efficacy of angioplasty with drug-eluting balloon vs. standard angioplasty for the treatment of symptomatic superficial femoral artery in-stent restenosis. The primary endpoint was binary (≥50%) restenosis rate at six months as assessed by duplex ultrasound corelab adjudication (PSVR≥2.4). The secondary endpoints were primary angiographic success (,50% residual stenosis), six-month recurrent in-stent restenosis (≥70%) and 12-month recurrent in-stent restenosis (≥50%), six- and 12-month clinically-driven target lesion revascularisation, and clinical/haemodynamic assessment (walking distance, ankle brachial index, Rutherford category) at one, six and 12 months. The investigators also assessed the major adverse vascular events (MAVE) at 12 months.. Patients who had Rutherford class 2-4 lesions and superficial femoral artery in-stent restenosis between 70-100% as assessed by duplex ultrasound were included. Further, to be included, patients ...
A coronary stent is a tubular structured device made of a thin mesh of wire, which may also be coated with a polymer containing a drug, or made of biodegradable materials. Coronary stents are utilized during percutaneous coronary interventions (PCIs) for the treatment of patients suffering from various coronary artery diseases (CADs) such as acute myocardial infarction, angina pectoris and others. At present, several researches are being conducted in the field of coronary stenting, in order to minimize side effects such as restenosis and thrombosis. Certain new and advanced coronary stents such as bio-absorbable stents have been commercialized in the global market, which demonstrate very less or no common side effects of coronary stenting.. Request a Sample Copy of the Report @ http://www.mrrse.com/sample/1170. The market for coronary stents can be broadly classified into three major segments, namely, bare metal stents (BMS), drug eluting stents (DES) and bio-absorbable stents. In 2011, the drug ...
Since the drug eluting stents have provided better results concerning restenosis and repeat revascularization comparing to bare metal stents, percutaneous coronary interventions are performing increasingly in more complex stenoses. However, drug eluting stents did not show any advantage on prevention of myocardial infarction and survival. Currently there is no any completed controlled randomized study showing the superiority or equality of drug eluting stents over coronary bypass surgery by means of efficacy and safety. While the long-term results of drug eluting stents still unclear, everyday progressively more patients with multivessel disease are undergoing percutaneous coronary intervention with drug eluting stent implantation. The aim of this review is to discuss the efficacy and safety of drug eluting stents in patients with multivessel disease.. Keywords: Coronary artery disease, stent, drug-eluting stent, multivessel disease, coronary bypass ...
TY - JOUR. T1 - Chronic Arterial Responses to Polymer-Controlled Paclitaxel-Eluting Stents. T2 - Comparison with Bare Metal Stents by Serial Intravascular Ultrasound Analyses: Data from the Randomized TAXUS-II Trial. AU - Tanabe, Kengo. AU - Serruys, Patrick W.. AU - Degertekin, Muzaffer. AU - Guagliumi, Giulio. AU - Grube, Eberhard. AU - Chan, Charles. AU - Munzel, Thomas. AU - Belardi, Jorge. AU - Ruzyllo, Witold. AU - Bilodeau, Luc. AU - Kelbaek, Henning. AU - Ormiston, John. AU - Dawkins, Keith. AU - Roy, Louis. AU - Strauss, Bradley H.. AU - Disco, Clemens. AU - Koglin, Jörg. AU - Russell, Mary E.. AU - Colombo, Antonio. PY - 2004/1/20. Y1 - 2004/1/20. N2 - Background-Polymer-controlled paclitaxel-eluting stents have shown a pronounced reduction in neointimal hyperplasia compared with bare metal stents (BMS). The aim of this substudy was to evaluate local arterial responses through the use of serial quantitative intravascular ultrasound (IVUS) analyses in the TAXUS II trial. Methods and ...
At present, the product information of intracoronary stents provided by the industry contains only limited technical data restricting judgments on the in vivo performance of individual products. Available experimental and clinical evidence suggests that interventional target sites display highly heterogeneous biomechanical behavior needed to be matched by specific stent and stent delivery system characteristics. To allow individualized stent-lesion matching, both, understanding of biomechanical properties of the atherosclerotic coronary artery lesions and expert knowledge of the intracoronary stent systems, are required. Here, the authors review some of the initial data on mechanical properties of coronary artery lesions potentially relevant to stenting and suggest standards for technical documentation of intracoronary stents.. ...
A trend which will definitely change the market is the emergence of bio-absorbable stents. Since 1995, the introduction of new products such as bio-absorbable scaffolds, biodegradable polymers, and bifurcation stents is likely to increase the use of vascular stents in interventional cardiology. These stents have the potential to eliminate the complications of durable polymer stents. This will induce a significant positive shift in the treatment of artery stenosis and encourage affected individuals to undergo vascular stenting. Bio-absorbable stents restore blood flow by opening the clogged blood vessel and provide support until the damaged blood vessel heals. Unlike metallic stents, the body gradually metabolizes the bio-absorbable stent and entirely absorbs them over time.". Ask Sample PDF of Vascular Stents Market Report @ http://www.marketreportsworld.com/enquiry/request-sample/10279222 According to the Vascular Stents Market report, a key growth driver is the demand for minimally invasive ...
Cerebral embolization during carotid artery stenting (CAS) can often precipitate severe adverse neurological effects. Most major clinical studies of CAS have used distal filters for cerebral protection and have compared the neurologic complication rates with those of carotid endarterectomy (CEA). Many currently available embolic protection devices, however, have limited efficacy in capturing microembolic debris that is liberated during stenting, pre-dilatation and post-dilatation. Distal protection systems are furthermore limited by the need to cross the lesion prior to deployment. Some studies have shown a relatively high incidence of cerebral infarction even when distal protection devices are employed.. Cerebral protection with carotid flow reversal is a method that was developed as an alternative to the use of distal protection devices. While novel in its approach, this method too has its limitations. Another technique developed employs carotid flow reversal prior to traversing the stenosis ...
Cerebral embolization during carotid artery stenting (CAS) can often precipitate severe adverse neurological effects. Most major clinical studies of CAS have used distal filters for cerebral protection and have compared the neurologic complication rates with those of carotid endarterectomy (CEA). Many currently available embolic protection devices, however, have limited efficacy in capturing microembolic debris that is liberated during stenting, pre-dilatation and post-dilatation. Distal protection systems are furthermore limited by the need to cross the lesion prior to deployment. Some studies have shown a relatively high incidence of cerebral infarction even when distal protection devices are employed.. Cerebral protection with carotid flow reversal is a method that was developed as an alternative to the use of distal protection devices. While novel in its approach, this method too has its limitations. Another technique developed employs carotid flow reversal prior to traversing the stenosis ...
Global Drug-Eluting Stents Market 2025" Report Provides Porters Five Forces Analysis Illustrates the Potency of Buyers & Suppliers Operating in the Industry & the Quantitative Analysis of The Global Market from 2019 to 2025 is Provided to Determine the Market Potential.. Drug eluting stents are tubular mesh-like structures of thin wires that are placed inside coronary arteries during percutaneous coronary interventions (PCIs) to help treat acute myocardial infarction, atherosclerosis, angina pectoris, and other coronary disorders. Presently, a wide range of stents are available in the global drug eluting stents market due to technological advancements leading to their incorporation into stenting technologies. Drug eluting stents are made of metal coated with a pharmacologic agent, which is known to suppress restenosis. These stents have proven to be efficient in the treatment of acute myocardial infraction, angina pectoris, multiple vessel disease, and atherosclerosis. Drug eluting stents have ...
TY - JOUR. T1 - Platelet function and total length of intracoronary stents. T2 - Is there a correlation? [2]. AU - Cummings, Charles C.. AU - McKenzie, Marcus E.. AU - Horowitz, Eric D.. AU - Oshrine, Benjamin R.. AU - Callahan, Kevin P.. AU - Gurbel, Paul A.. AU - Serebruany, Victor L.. PY - 2001/1/15. Y1 - 2001/1/15. KW - Aggregometry. KW - Coronary artery disease. KW - Glycoprotein IIb/IIIa. KW - Intracoronary stents. KW - Platelets. UR - http://www.scopus.com/inward/record.url?scp=0035862597&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0035862597&partnerID=8YFLogxK. U2 - 10.1016/S0049-3848(00)00372-8. DO - 10.1016/S0049-3848(00)00372-8. M3 - Letter. C2 - 11392314. AN - SCOPUS:0035862597. VL - 101. SP - 105. EP - 107. JO - Thrombosis Research. JF - Thrombosis Research. SN - 0049-3848. IS - 2. ER - ...
Hello and welcome to the December issue of Vascular Disease Management. I have chosen to comment on Deepika Kalisetta and colleagues case report on Balloon Assisted Dislodgement of a Trapped Directional Atherectomy Catheter (the Ocelot device) During Treatment of In-Stent Restenosis (ISR).. Stenting of femoropopliteal arterial obstructive lesions has been demonstrated to result in higher primary patency than standard balloon angioplasty. Stenting is also routinely utilized to treat flow-limiting dissections following PTA and atherectomy. Therefore, stenting is commonly utilized in treating symptomatic femoral and popliteal arterial obstructions. Unfortunately, restenosis and reocclusion are common following stenting. Whereas stent grafts tend to develop recurrent stenosis only at the edge of the stents, standard nitinol self-expanding stents often develop diffuse in-stent restenosis secondary to neointimal hyperplasia and reocclusion when there is superimposed thrombus. Stent restenosis can ...
Unlike the BENESTENT I and STRESS trials, which showed a 30% reduction in late restenosis with the use of stents, angiographic restenosis in OCBAS was similar between PTCA and stented patients, as was length of hospital stay, TVR and freedom from major cardiac events. Despite the lack of benefit observed, overall costs were significantly higher in the stent than in the optimal PTCA with provisional stenting group. Despite a small sample size, the OCBAS trial suggests immediate use of coronary stents following optimal PTCA may not be warranted, but rather a delayed, conservative approach may result in similar outcomes. Given the conflicting results with trials such as DEBATE II, which showed higher costs with provisional stenting, further trials are needed before a definitive conclusion can be drawn. Finally, waiting 30 minutes to examine the early loss may not be feasible in clinical practice, and the trial was initiated before the availability of later generations of stents and does not include ...
Press Release issued Oct 5, 2017: Non-vascular stents are specialized medical devices used for relieving the strictures in gastrointestinal tract, ureteral tract and airway tracts. These are also used for holding open the narrowed lumens during complex surgical procedure to allow free flow of body fluids. On the basis of its applications there are three different types of non-vascular stents are available: pulmonology stents, urology stents, and gastroenterology stents. These stents are made using different material compositions such as metallic stents are made of stainless steel, nitinol alloys, and elgiloy. Whereas non-metallic stents are made up of synthetic polymers like resins, polyurethane, silicone.
METHODS AND RESULTS Forty-five stents were placed in 30 patients, who were 0.2-30.2 years old (weight, 3.5-76 kg). Patients with areas of stenosis that were difficult to approach surgically were chosen. Stents were mounted over balloons and placed by standard catheterization techniques. Twenty-three patients had branch pulmonary artery stenosis. Thirty-six stents were placed successfully and had reduced pressure gradients from 50.6 +/- 24 to 15.9 +/- 13.4 mm Hg. Five patients had stents placed after atrial surgery: three in obstructed Fontan repairs, one at the superior vena cava-right atrial junction after sinus venous defect repair, and one at the site of a Glenn shunt. Atrial stents reduced pressure gradients from 9.8 +/- 8.2 to 2.0 +/- 2.6 mm Hg. One patient had a stent placed in the descending aorta after coarctation dilation, and the pressure gradient was reduced from 50 to 25 mm Hg. One patient had pulmonary vein dilation with stent placement. Two stents migrated at the time of placement; ...
Our results demonstrate the possibility of therapeutic local gene transfer using a stent platform technology and that VEGF-2 gene-eluting stents may be effective in the prevention of restenosis. The data show that VEGF-2 plasmid was effectively delivered to the vessel wall, where transcript and protein were detected for up to 10 days after stent implantation. Local VEGF-2 gene, delivered by PC-coated stents, not only improved early reendothelialization at the stented site but also reduced neointimal proliferation as assessed by IVUS at 3 months of follow-up. IVUS and histomorphometric assessment revealed significant differences in neointimal formation in hypercholesterolemic animals after implantation of VEGF stents compared with PC control stents. Moreover, and in contrast to all other currently marketed drug-eluting stents, VEGF-2-eluting stents result in acceleration of anatomic and functional endothelial recovery. These data, therefore, represent the first demonstration of an antirestenosis ...
Headline: Bitcoin & Blockchain Searches Exceed Trump! Blockchain Stocks Are Next!. World Stents Market by Product (coronary, peripheral, and stent-related implants), by Material (Metallic, Polymeric, Natural) - Global Opportunity Analysis and Industry Forecast, 2014-2022. View full report at World Stents Market by Product (coronary, peripheral, and stent-related implants), by Material (Metallic, Polymeric, Natural) - Global Opportunity Analysis and Industry Forecast, 2014-2022. Summary:. A stent is a metallic or a polymer tube implanted into the lumen of any blood vessel or a duct in order to keep the passage open. A variety of stents for different clinical conditions are available in the market. A stent implant is most commonly used for the treatment of cardiac abnormalities such as blocked blood vessels. In addition, stents are implanted in the esophagus to allow the passage of food and beverages in patients suffering from esophageal cancer. They are also inserted in the ureter to prevent ...
Vascular Stents Market: By Material (Metal Stents, Standard Polymeric Stents, and Biodegradable Polymeric Stents) & By Region (Europe, North America, Asia-Pacific, RoW)-Forecast (2016-2022) Vascular Stents - Market research report and industry analysis - 10582518
Press Release issued Apr 23, 2015: Cardiovascular devices industry is growing at a significant rate globally, due to increasing number of heart diseases and other cardiovascular problems cases. In addition, technological advancement in this field and growing awareness has increased the growth of cardiovascular devices market. Coronary stents refer to the medical devices that are tubular in nature and fixed in coronary artery to keep artery open, for proper supply of blood. Continuous increase in the cases of cardiovascular problems has led a significant growth in Coronary Stents Market. Out of global market for coronary stents, North American coronary stents market has the largest share. This is due to increased prevalence of coronary heart diseases and technological advancement in the region. In addition, government initiatives and better reimbursement scenario has led to increase in North American coronary stents market.
Coronary artery stenosis is commonly treated by stent placement via percutaneous intervention, at times requiring multiple stents that may overlap. Stent overlap is associated with increased risk of adverse clinical outcome. While changes in local blood flow are suspected to play a role therein, hemodynamics in arteries with overlapping stents remain poorly understood. In this study we analyzed six cases of partially overlapping stents, placed ex vivo in porcine left coronary arteries and compared them to five cases with two non-overlapping stents. The stented vessel geometries were obtained by micro-computed tomography of corrosion casts. Flow and shear stress distribution were calculated using computational fluid dynamics. We observed a significant increase in the relative area exposed to low wall shear stress ( ...
Perioperative Management of Patients with Coronary Stents Perioperative Management of Patients with Coronary Stents 1. Determine the type (BMS, DES) and location in the coronary circulation of stents placed in the 2. When possible, obtain catheterization/stent procedure report to identify any high risk factors for a. Low EF b. Prior coronary brachytherapy c. Long Stents d. Proximal vessel involvement (i.e. L main) e. Multiple Lesions f. g. Ostial/bifurcation lesions h. Small vessels i. 3. Consult with a patients cardiologist and, when high risk, with the interventional cardiologist. When no cardiologist is on record, consult: a. Hillcrest Cardiology Consult b. Thornton Cardiology On-call 4. Perform the surgery in a center with 24-h interventional cardiology coverage so that stent thrombosis, if occurs, could be treated by PCI. 5. Inform patients of risk of perioperative stent thrombosis on preoperative visit ...
Global Market Watch:. BRICSS Coronary Stents market value is expected to reach US$1 billion by 2016, primarily supported by the product types - Drug Eluting Stents, Bare Metal Stents, Absorbable Stents and …etc. China accounts for nearly 28% of the market share and India claims more than 23%. In terms of CAGR, India is the fastest growing region while China and South Korea are just behind. Among the product types, Drug Eluting Stents account more nearly half of the market value while Absorbable Stents segments indicate a close 14%. In case of Stent Coating, Polymer depicts the largest CAGR while Non-Polymer and Inorganic in second and third place respectively.. Browse Full Research Report With TOC on http://www.radiantinsights.com/research/coronary-stents-emerging-markets. Healthcare Industry division has been witnessing a drastic change regarding the new innovation and technology which in terms are applied in improving from sector to sector since the past 3-5 years. Cardiovascular industry ...
Cardiovascular disease is the dominant cause of mortality in developed countries, with coronary artery disease (CAD) a predominant contributor. The development of stents to treat CAD was a significant innovation, facilitating effective percutaneous coronary revascularization. Coronary stents have evolved from bare metal compositions, to incorporate advances in pharmacological therapy in what are now known as drug eluting stents (DES). Deployment of a stent overcomes some limitations of balloon angioplasty alone, but provides an acute stimulus for thrombus formation and promotes neointimal hyperplasia. First generation DES effectively reduced in-stent restenosis, but profoundly delay healing and are susceptible to late stent thrombosis, leading to significant clinical complications in the long term. This review characterizes the development of coronary stents, detailing the incremental improvements, which aim to attenuate the major clinical complications of thrombosis and restenosis. Despite these
Drug eluting stents (DES) have decreased substantially the neointimal formation after percutaneous coronary intervention (PCI). However, DES are not free from neointimal hyperplasia (NIH) and stent thrombosis, which are related to the delayed arterial healing following DES implantation. The recently introduced optical coherence tomography (OCT) enables a detailed investigation of vessel healing. The presence of peri-strut low intensity (PLI) has been described as a potential marker of abnormal neointimal healing (1,2). We investigated the late healing characteristics of stents implanted over 3 years, specifically the potential impact of PLI on NIH and restenosis.. OCT imaging (M2, Lightlab Imaging, Westford, Massachusetts) was performed in 99 patients who were treated with bare-metal stents (BMS), sirolimus-eluting stents (SES) (Cypher, Cordis, Bridgewater, New Jersey), or paclitaxel-eluting stents (PES) (Taxus, Boston Scientific, Natick, Massachusetts) from September 2007 to August 2009. The ...
Coronary stents are tubular type scaffolds that are deployed, using an inflatable balloon on a catheter, most commonly to recover the lumen size of narrowed (diseased) arterial segments. Their presence, however, can lead to adverse biological responses - in-stent restenosis, formation of neointima within 12 months of the implant, and thrombosis, formation of a blood clot inside the artery. Currently, an "ideal stent" - that recovers arterial shape with no adverse response - does not exist, even though, as a multi-billion dollar industry, stent design has witnessed a fairly rapid evolution from bare metal stents of increasing complexity, through shape memory alloy stents, polymer coated, drug eluting stents to biodegradable stents made from polymers or corrodible metals. The adverse responses are likely to be multi-factorial but their causes are not completely understood. However, there are studies implying a correlation between the stent design, which is a common differentiating factor between ...
Fully covered esophageal self-expandable metallic stents (SEMS) often are used for palliation of malignant dysphagia. However, experience and data on these
There are two types of urethral stents temporary and permanent. Most are made up of stainless steel or Nitinol. Absorbable stents made up of Vicryl are also available. Indication : recurrent short bulbar stricture. Patient unfit for surgery or refuse a surgery.. Contra indication: penile urethral stents are painful during erection. Stents inserted into the membranous urethra after core through urethrotomy for pelvic fracture urethral distraction defects also get blocked due to over growth of fibrosis.. The success rate of urethral stents inserted in the bulbar urethra is quoted in region of 80% a stent may migrate distally forming a stricture at the proximal end exposed part of the urethral stent not covered by urothelium may be encrusted with stones. Overgrowth of excessive epithelization may block the lumen and may need repeated resection. In those patients where the stent has to be removed endoscopic removal of the stent may be possible with some single wire stents but mesh stents need open ...
THESIS 8924 The use of stenting in peripheral arteries has been limited by rates of in-stent restenosis and stent fracture considerably higher than seen in coronary arteries. Traditional balloon expandable stainless steel stents were found to be incompatible in femoral and popliteal arteries. The change to more flexible nitinol stents saw an improvement in restenosis rates, but outcomes were still poor compared with coronary stents. The advent of drug eluting stents, which decreased restenosis rates in coronary arteries, has yet to result in significant improvement in peripheral arteries. Artery movement, caused by joint flexion, has long been thought of as a major contributory factor of the high restenosis rates seen in peripheral arteries. However, this hypothesis has not been adequately assessed, and there are other factors which could contribute to the poor performance of peripheral stents. The material properties and geometries of the coronary and peripheral arteries are different, and the ...
OBJECTIVE: To investigate the use of a cutting balloon to overcome aorto-ostial lesions before stent implantation and thereby reduce the restenosis rate. DESIGN: Observational follow up study. SETTING: Tertiary referral centre. PATIENTS: Eight patients (two female, six male) aged 58.2 (SD 10.1) years with Canadian Cardiovascular Society (CCS) grade II-IV angina were recruited. They each had a single target lesion (three in native coronaries, five in vein grafts). INTERVENTION AND RESULTS: After high pressure angioplasty (18 (3.8) bar), there was only a small reduction in the luminal stenosis, from 82 (9)% to 68 (10)%, as assessed by on line quantitative coronary angiography. However, using the cutting balloon there was a marked reduction in the luminal stenosis to 44 (15)%, facilitating stent insertion. Subsequent high pressure dilatation resulted in a final stenosis of 10 (7)%. At 6 (2) months follow up the marked symptomatic improvement, to CCS angina grade 0-II, was maintained and there were ...
Market Research Trade Published new report Global Aortic Stents Grafts 2019 2019: Global Industry Analysis, Size, Share, Growth, Trends, and Forecasts is committed fulfilling the requirements of the clients by giving them thorough insights into the market.. The Global Aortic Stents Grafts 2019 2019 report is expansive research reliant on Global Aortic Stents Grafts 2019, which inspects the raised structure of the present Global Aortic Stents Grafts 2019 2019 all around the globe. Arranged by the adequate methodical framework, for instance, SWOT examination, the Global Aortic Stents Grafts 2019 report exhibits a total evaluation of the significant players of the Global Aortic Stents Grafts 2019. The estimates for CAGR (Compound Annual Growth Rate) is calculated by the Global Aortic Stents Grafts 2019 report in terms of extent for the specific time length. This will similarly help the customer with comprehension and settle on a correct choice depends on a normal chart.. Request Free Sample Report ...
We read with interest the article by Kan et al. (1) that described the incidence of the risk factors for stent fracture and restenosis. They highlight an under-recognized concept: that stent fracture occurs at progressive time-points after stent implantation, raising the question about how much is driven by procedural technique versus patient or vessel factors.. Their multivariate analysis identifying predictors of stent failure indicated that most risk factors could not be modified, for example, right coronary artery location, hinge motion at lesion position and long lesion length (requiring long/multiple stents). They suggested that aggressive post-dilation of smaller stents is an operator-dependent procedural risk factor for stent fracture and hence restenosis, a potentially avoidable problem. However, we would caution against discontinuing the well-established practice of high-pressure post-dilation.. We have previously investigated and published on this very issue (2). In our dataset of ...
... : Bare metal stents (BMS) are thin spring like structures used to scaffold a blood vessel after angioplasty (removal of blocks). Bare metal stents are made of stainless steel, nitinol or cobalt-chromium.. ...
RnRMarketResearch.com adds "MediPoint: Aortic Stent Grafts - APAC Analysis and Market Forecasts" to its store.. Aortic stent grafts are most commonly used to reinforce a weak spot in an artery, which is known as an aneurysm. The stent grafts are designed to seal tightly with the patients native artery above and below the aneurysm, and are used to treat abdominal aortic aneurysms as well as thoracic aortic aneurysms. Aortic aneurysms, as opposed to aneurysms found elsewhere in the body, are potentially very serious, as a burst aorta results in massive internal bleeding that can be fatal unless treated rapidly by an experienced emergency medical team. Since their introduction in patients in 1991, aortic stent graft devices have gained wide acceptance and availability, with their adoption fueled in great part by advances in stent-graft design and by a variety of devices for various anatomic features. Over time, these devices have gained traction for use in patients with ruptured aneurysms because ...
ABSTRACT. Background: Bioabsorbable vascular scaffolds (BVS) are a relatively new technology in interventional cardiology and it has many upsides when comparing it to metallic stents. After performing its main function - revascularization, it also repairs the wall of the artery and then absorbs and disappears completely. Basically it overcomes all of the downsides which metallic stents have. This study was done to evaluate results and complications of two-year treatment and also the need of revascularization for patients that have been treated with BVS. Methods: This follow up is done performing a retrospective survey. There were 46 consecutive patients who have suffered from ischemic heart disease in our survey (this includes stable and unstable chest angina and myocardial infarction). First of all, risk factors of our patients were collected (diabetes, hypertension, smoking). Coronary artery angiography and stenting with bioabsorbable stents were performed on all of these patients. Patients ...
An elongate distal protection device includes an intraluminal filter-occluder combination positioned at a distal end thereof. An expandable occluder is disposed within an expandable filter such that the filter and occluder are independently deployable. During use, the expanded occluder may be used first to stop embolic particles for aspiration thereof. Then, the occluder may be collapsed, leaving the filter expanded to capture any remaining embolic particles.
A distal protection device for use in a body lumen includes a functional element, which may be a filter or an occlusive element. The device includes a first elongate member, a second elongate member carried by the first elongate member, and the functional element carried by the second elongate member. Motion of the first elongate member can be independent of the motion of the functional element.
... About Biliary Stents A biliary stent is a small plastic or metal tube that is shaped like - Market research report and industry analysis - 10717392
... DUBLIN Oct. 19 2015 /- Resear...Stents are devices used in the body for treating weak or narrow blood ...By applications the stents are divided into two segments as vascular ...Urology stents are further segmented into ureteral & urethral sten...,Global,Vascular,and,Non-Vascular,Stents,Market,2015-2021,-,Threats,for,the,Stents,Market,Include,Reduced,Reimbursement,,Alternative,Procedures,and,Stringent,Regulations,for,Stent,Approval,medicine,advanced medical technology,medical laboratory technology,medical device technology,latest medical technology,Health
LONDON - Gastrointestinal stents are made use of during GI bleeding, colorectal cancer, and other diseases.. SEMSs represent the most widely used mesh cylindrical stents having large diameter for treatment of severe gastrointestinal conditions.. A rise in the incidence of gastrointestinal disorders, availability of new options relative to stent placement and MI procedures growing preference are some of major driving forces of the worlds market for gastrointestinal stents.. This marketplace is set to grow at a CAGR of appr. 4% over the period 2016-2020.. Here are some challenges, as well. For instance, complications that are associated with such stents and regulatory issues related to the approval of devices.. The noteworthy market trends comprise: technology advances, emergences of stents made from bioabsorbable materials, and more.. ELLA-CS, BD and Medtronic are amongst key companies in the global space.. In-demand research report "Global Gastrointestinal Stents Market 2016-2020" drawn up by ...
Iliac artery atherosclerotic disease may cause intermittent claudication and critical limb ischemia. It can lead to serious complications such as infection, amputation and even death. Revascularization relieves symptoms and prevents these complications. Historically, open surgical repair, in the form of endarterectomy of bypass, was used. Over the last decade, endovascular repair has become the first choice of treatment for iliac arterial occlusive disease. No definitive consensus has emerged about the best endovascular strategy and which type of stent, if any, to use. However, in more advanced disease, literature is most supportive of primary stenting with a balloon-expandable stent in the common iliac artery. Recently, a PTFE-covered balloon-expandable stent (Advanta V12, Atrium Medical Inc., Hudson, NH) has been introduced for the iliac artery. Covering stents with PTFE has been shown to lead to less neo-intimal hyperplasia and this might lower restenosis rates. However, only one RCT of ...
DUSSAILLANT N, Gastón et al. Acute and long-term clinical results of bare metal coronary stenting. Rev. méd. Chile [online]. 2007, vol.135, n.5, pp.558-565. ISSN 0034-9887. http://dx.doi.org/10.4067/S0034-98872007000500002.. Background: Since the introduction of stents in 1994, improved clinical results have boosted the development of coronary angioplasty in Chile. Drug eluting stents, that have a reduced rate of restenosis, are being increasingly used. Aim: To assess the acute and long-term results of bare metal stent implantation. Patients and Methods: Acute and long-term clinical, procedural and angiographic results were assessed in non acute myocardial infarction patients undergoing coronary stent implantation between August 1996 and December 2003. Results: During the study period, 932 patients aged 30 to 87 years (194 women) had at ¡east one stent implanted. Twenty two percent were diabetic, 33% had recent myocardial infarction, 53% unstable angina and 22% stable angina. Angiographic and ...
Despite the fact that stents have improved the outcome of percutaneous intervention of obstructed vein grafts (2,3), prognosis of patients undergoing this procedure is still poor (4,12). Targets to improve intervention in saphenous vein grafts are to inhibit distal embolization of atherosclerotic debris (13)and to reduce restenosis rate, which is elevated compared with native vessels (2,4,14). Thus, it was intriguing to hypothesize that a stent covered with a membrane would seal the lumen and prevent protrusion of proliferating tissue and, thereby, reduce microembolization and restenosis rate. However, the present trial does not reveal a benefit of the PTFE-membrane-covered Jostent Stentgraft compared with the conventional stent used (Jostent Flex); restenosis rate, the primary end point, did not significantly differ between the Stentgraft (29%) and the conventional stent group (20%). In addition, acute complications and long-term clinical event rate up to 15 months were comparable between the ...
Stents, long famous for their success in propping open clogged arteries in the heart, are now being used in neck arteries in an effort to reduce strokes.. Technical advances have made the stents safer to insert in neck arteries, and some experts now fear that doctors may adopt the procedure -- and patients may clamor for it -- before there is sufficient research to support it.. With carotid stenting, doctors insert a mesh device into a clogged carotid artery in the neck to keep blood flowing to the brain. The stents can be placed in the carotid arteries without general anesthesia.. The procedure is less invasive and recovery is faster than with endarterectomy," the traditional surgical approach to fixing narrowed arteries, said Dr. Marc Mayberg, executive director of the Seattle Neuroscience Institute, a research center. But he said carotid stenting may be overapplied in patients who actually dont need it, who dont need any treatment at all, or who would do well on medications ...
Metallic characteristics, bulk and surface properties, design and chemistry are all important factors to consider in the conception of an optimal stent. Materials to be used as stent backbone must fulfill stringent physical, mechanical and chemical properties. The metal of an expandable stent must have enough plasticity to remain at the required size when deployed. Self-expanding stents, in addition, must be prepared from metals with sufficient elasticity so they can be compressed and then expanded and retain sufficient radial hoop strength to prevent vessel recoil or closure once in place (3). First-generation coronary stents were made of surgical grade stainless steel or tantalum, although several investigators have also suggested the use of temporary or permanent nitinol stents due to the superelastic and thermal shape memory properties of that alloy (4-6).. Among chemical characteristics, corrosion properties are paramount. Formation of a surface metal oxide-film retards corrosion, and for ...