Active clinical trials for "Peripheral Arterial Disease"

This is a double blind crossover study designed to compare two different gadolinium products given at the same dose to patients undergoing MRA assessment of lower legs for the evaluation of peripheral steno-occlusive disease.

This study will test how well a new contrast agent (dye) used in magnetic resonance imaging (MRI) can help visualize totally blocked arteries that normally supply blood to the neck, arms or legs. Currently used agents work well in visualizing normal or partly blocked arteries (arteries that have some blood flowing through them), but only poorly in totally blocked arteries. This study will see if a contrast agent called gadofosveset can better brighten images of completely blocked arteries. Gadofosveset is approved in Europe for use in MRI scans, but is still considered experimental in the United States. People 18 years of age or older with known or suspected total blockage of an artery to the neck, arm or leg may be eligible for this study. Participants undergo MRI scanning with gadofosveset contrast dye. MRI uses a magnetic field and radio waves to produce images of body tissues and organs. For this procedure, the subject lies on a table that can slide in and out of the tubular scanner, wearing earplugs to muffle loud noises that occur during the scanning process. The procedure lasts about 1.5 to 2 hours, during which the subject may be asked to hold his or her breath several times for as long as 5 to 20 seconds. During the procedure, gadofosveset is injected and several kinds of MRI pictures are taken to understand better how the new agent works. Subjects may be asked to undergo a second scan using conventional MRI contrast dye

This is a Belgian prospective multicentre registry on the performance of the Smart stent in the superficial femoral artery according to the new tasc II-classification.

Exercise training improves walking capacity and regional perfusion in patients with Intermittent Claudication (IC). Endothelial Progenitor Cells (EPCs) and Endothelial Microparticles (EMPs) could play an important role in this process, promoting the healing of the diseased endothelium. The investigators are going to measure EPCs and EMPs in a group of patients with IC and in a control group of healthy individuals before a treadmill test and 2, 24, and 48 hours after the test. Subsequently, a group of IC patients will be randomly assigned to perform a 12-week home-based exercise training program. The investigators expect a significant increase of EMPs and EPCs after acute and chronic physical activity. We expect also a correlation between the increase of EMPs and EPCs and the improvement in walking capacity. Aim of the study is to demonstrate that acutely performed aerobic exercise could be able to promote the mobilization of EMPs and EPCs in patients with IC and that endothelial progenitor cells mobilization could play a pivotal role in exercise induced improvement of walking performance and endothelial function in subjects with IC.

To determine in patients with symptomatic femoropopliteal lesions whether percutaneous revascularization with paclitaxel-eluting balloon angioplasty (PEB) and provisional nitinol stent is superior with respect to the 12-month incidence of restenosis compared to treatment with systematic paclitaxel-eluting stent (PES) angioplasty

The primary objective of this prospective, Randomized, Controlled, Multicentre, Open Study is to investigate the inhibition of restenosis by the Paclitaxel-eluting Percutaneous transluminal angioplasty (PTA) balloon Freeway versus PTA alone in the treatment of de-novo occluded, stenotic or reoccluded, restenotic superficial femoral (SFA) or popliteal arteries.

The nitinol stent has proven superior primary patency than balloon angioplasty in superficial femoral artery lesions. Recent stent design improvements focus on decreasing stent fracture rates which can negatively impact patency rates by rearranging strut alignment. In the literature, however, prospective, randomized, controlled, clinical trial for comparison of stent fracture and primary patency between different nitinol stents has never been performed except one study; SMART versus Luminexx stent named SuperSL trial. LifeStent is similar to S.M.A.R.T. stent in the design consisted of the peak-to-valley connected with S-shaped bridge but is different in lesser bridge (4 bridge vs. 6 bridge), large cell size on stent ends, and larger cell size than S.M.A.R.T. On the other hand, Recent meta-analysis has shown that the efficaty of cilostazol in the atherosclerotic femoropopliteal lesion was proven. However, still specific data regarding a variety of antiplatelet regimen in implanted femoropopliteal lesion are limited. Upto date, in the literature, never has never been performed the clinical trial for optimal duration of cilostazol use in the patient undergone stent implantation for femoropopliteal lesion. Thus, The purpose of our study is to examine and compare Primary patency and stent fracture between different two-nitinol stents (S.M.A.R.T. CONTROL versus Lifestent) in femoropopliteal arterial lesion and to examine and compare the optimal duration of cilostazol use.

The purpose of this study is to determine if the application of a negative pressure dressing intraoperatively (Prevena; KCI, Inc) to vascular groin incisions decreases the wound complication rate in high risk patients.

Comparison of wound healing, edema level, knee range of motion, rate of revision post falls, device application time, time to prosthetic fit, and cost between postoperative soft dressing and a vacuum removable rigid dressing after unilateral transtibial amputation.

This study looks to examine whether an online patient tool to monitor factors affecting patients peripheral artery disease can lead to improvements in patients' disease and slow its progression.