View clinical trials related to Peripheral Vascular Diseases.
Filter by:To evaluate the safety and effectiveness of the Pantheris System to perform atherectomy while using directional visualization and imaging as an adjunct to fluoroscopy to aid removal of plaque from diseased lower extremity arteries.
In this investigation, the investigators will attempt to demonstrate that patients who have received nerve blocks (regional anesthesia) prior to open surgical vascular bypass of the lower extremities (infrainguinal bypass grafting) will have improved surgical outcomes namely a reduction in the rates of death, wound infection, graft thrombosis, graft revision, and amputation. As well, the investigators anticipate that patients who have undergone regional anesthesia for infrainguinal bypass grafting will have improved secondary outcomes with respect to a decreased length of stay, narcotic consumption, nausea and vomiting, post-operative cognitive dysfunction, major cardiac events, post-operative pain, and hyperglycemic episodes.
Unblinded, randomized, balanced trial comparing 12 month target lesion patency rates of the IDEV SUPERA VERITAS peripheral stent system to PTA in the treatment of obstructive atherosclerotic popliteal artery disease.
More than 2 million patients in North America are treated with warfarin - a "blood thinner" - to prevent blood clots in arteries or veins. The treatment has to be monitored with a blood test and the dose changed accordingly every 1-4 weeks. One third of the patients have very stable results and hardly ever have to change the dose. The investigators wish to show that the level of control of the treatment with warfarin in these very stable patients is not worse with 12-weekly testing. A pilot study the investigators performed indicated that 12-weekly testing would be safe but this has to be confirmed in a large study. One third of patients taking warfarin have not had any changes in the dose for the past 6 months or longer. These patients will be asked about participation in the study. They will be randomized to testing and dosing every 4 or 12 weeks. Each patient is in the study until it ends, which will be minimum 1 year and can be up to about 4 years. The study is designed to show that 12-weekly testing does not significantly increase the risk for major bleeding or blood clots. The results would be important for a large number of patients. An increase of the interval between blood tests from 4 to 12 weeks would reduce the burden for these patients on life-long treatment considerably.
Although microparticles have been well-documented as mediators of inflammation and coagulation in various cardio-vascular disease events, it is currently not known how Percutaneous Transluminal Angioplasty (PTA) for peripheral arterial disease influences microparticle numbers, phenotype and distribution pre- and post interventionally and how they are related to or affect the incidence of early re-stenosis - or if indeed they may be used to predict patients at risk of early re-stenosis.
This trial aims to evaluate if hyperbaric oxygen treatment (HBO) given postoperatively is effective in reducing healing time and wound complications after lower extremity bypass surgery in patients with diabetes. Hypothesis: Postoperative HBO treatment is effective in reducing complications in patients with diabetes undergoing peripheral vascular surgery
The purpose of this study is to evaluate the safety and efficacy of the Minnow Medical GRST Peripheral Catheter System in the treatment of new lesions in the superficial femoral artery or the popliteal artery.
The purpose of this study is to establish the surgical risk factors and differences between different diseases in elderly patients submitted to elective surgery in our institution.
After 6 weeks of maximal Ranolazine therapy, tissue hemoglobin desaturation kinetics will change compared to placebo in patients with chronic angina and peripheral arterial disease.
Sixty patients with mild-to-moderate PAD (ABI 0.4-0.9) and hypertriglyceridemia (>200 mg/dl) already treated with statins will be imaged at baseline and randomized to Lovaza and placebo for 12 months. MR imaging will be repeated at the end of the 12-month period. We hypothesize that treatment of hypertriglyceridemia in patients with PAD with Lovaza will reduce atherosclerotic plaque volume in the superficial femoral artery (SFA) by 2% over 1 year compared to placebo. Secondary aims will be to show improved plaque characteristics (thickened fibrous cap, reduced lipid-rich necrotic core, improved exercise calf muscle perfusion using first-pass contrast enhanced MRI and improved exercise treadmill performance with Lovaza compared to matching placebo.