Active clinical trials for "Peripheral Vascular Diseases"

Implantation of bone marrow cells, including endothelial progenitor cells, into ischemic limbs has been shown to improve collateral vessel formation. In the present study the safety and feasibility of autologous blood mononuclear cells implantation will be investigated in patients with severe peripheral atherosclerosis.Twenty cases will be enrolled. Improvement in the ankle-brachial pressure index (ABI:>0.1), ischemic ulcers and angiography as well as laser doppler flow will be evaluated until six months.

The purpose of this study is to determine if supervised exercise therapy in a physiotherapeutic setting, with or without therapy feedback, is more (cost-)effective than exercise therapy based on a 'go home and walk' advice without supervision, for patients with PAD stage II (Fontaine).

The aim of the study is to show the implication of platelets in vasodilation using in vivo and in vitro analysis and to compare the effects of placebo, aspirin and Clopidogrel in this interaction platelets/vessels. The effects of 7 days of each treatment will be compared in healthy subjects and patients with arteriopathy.

To investigate the efficacy of the administration of JVS-100 delivered via direct intramuscular injections on a 3 month and 6 month composite endpoint of wound progression, healing and limb loss in patients with severe peripheral arterial disease with non-healing chronic wounds who undergo an open bypass grafting or endovascular procedure for treatment of infrapopliteal disease and are dosed within 12 days and 3 months following the procedure.

Erectile dysfunction is highly prevalent as men grow older. Among the various causes of erectile dysfunction, it has been shown that pelvic arterial insufficiency plays a very important role. The investigators have recently developed the first imaging analytical algorithm by using the abdominal/pelvis multidetector computed tomographic (MDCT) angiography to delineate the whole arterial system supplying the penis. To establish a comprehensive, cutting-edge diagnostic and interventional therapeutic program for erectile dysfunction, the investigators therefore design this series of studies by including experts from Urology, Radiology, and Cardiology. This research project (PERFECT program) includes the following 4 sub-studies: 1) differential frequency of obstructive pelvic arterial lesions in coronary artery disease patients with and without erectile dysfunction/lower urinary tract symptoms (LUTS), 2) differential frequency of obstructive pelvic arterial lesions in patients with vascular risk factors and with or without erectile dysfunction/LUTS, 3) safety, feasibility, and efficacy of comprehensive pelvic angioplasty (with various interventional strategies/instruments) for patients with erectile dysfunction/LUTS and pelvic obstructive arterial disease: proof-of-concept study; and 4) efficacy and safety of comprehensive pelvic angioplasty (with various interventional strategies/instruments) for patients with erectile dysfunction/LUTS and pelvic obstructive arterial disease: a randomized controlled trial.

Sildenafil has shown potential effects both on vasodilator mechanisms and as an inhibitor of the NO/GMPc Pain activation. The investigators aim at estimating the benefit of sildenafil in term of morbi-mortality in patients with arterial claudication on a multicenter prospective double blind study.

The purpose of the study is to determine the effects of Prevena therapy on decreasing groin surgical site infections in patients who are obese and /or diabetic having vascular surgery.

This is a prospective, single-center study. The patients with peripheral arterial disease who underwent abdominal aortograms with runoff (which are arteriograms of the lower abdominal aorta and arteries in the legs) and Intravascular Ultrasound after stent deployment will be enrolled in the study. All patients who participated in the study will be treated according to standard of care. HYPOTHESIS The higher degree of plaque burden on landing zone has an effect on restenosis on peripheral artery intervention. SPECIFIC AIMS To determine intravascular ultrasound parameters of stent deployment and outcomes of Femoro-popliteal Disease To determine clinical risk factors and outcomes of Femoro-popliteal Disease To obtain data that will eventually support development of a predictive model for ISR in Femoro-popliteal Disease METHODOLOGY Visit 1: After consent is given The subject will receive standard follow-up care. A member of the research team will collect information such as the subject's age, sex, ethnicity, and medical information from the subject's medical record. Visits 2-5: 1 day after enrollment, and at months 3 (+- 2 weeks), 6 (+- 2 weeks), and 12 (+- 2 weeks) The subject will complete standard follow-up appointment at TTUHSC. This may include a Doppler ultrasound. A member of the research team will record information such as medications, ultrasounds, and need for additional care related to the subject's stent. The subject will complete the questionnaire on leg pain and mobility.

Diabetic lower extremity disease, including peripheral vascular disease, peripheral neuropathy, foot ulcers, or leg amputation. Among them, peripheral arterial disease (PAD) is an important expression of systemic atherosclerosis. With the progress of the disease, impaired peripheral blood circulation will lead to many symptoms and signs, such as pain, paresthesia, and numbness. In past studies show that regular exercise with moderate intensity may help to improve metabolism and hemodynamic characteristics of the individual. In addition, many studies have found that despite substantial organic changes in downstream tissue, exercise training can improve walking ability and aerobic capacity in patients with peripheral arterial disease. To enhance exercise capacity in patients with PAD may involve redistribution of blood flow from vascular beds with lower O 2 exchange rates towards exercising ischemic muscles, an increase in nutritive leg muscle blood flow at the expense of regional shunting mechanisms, increased peripheral O 2 use during exercise attributable to more optimal distribution of leg blood flow, and possible increased muscle capillary density and mitochondrial capacity. Therefore, we tried to mimic local (leg) ischemic- reperfusion by systemic exercise, or to practice remote preconditioning effect by interval occlusion of the blood vessel in the upper arm which acquired ischemic preconditioning effect, and to improve local blood flow. Furthermore, the hemagglutination performance in PAD patients may also be used as an important indicator of cardiovascular disease.

The Short term Perfusion Angiography (SPA) study is designed to collect 2D Perfusion data from Critical Limb Ischemia (CLI) endovascular (interventional) procedures for information on device performance in a real-world setting.